SIDE EFFECTS: Drowsiness, dizziness, headache, lightheadedness, blurred vision, upset stomach, nausea, constipation, increased sweating, or dry mouth may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.This medication can dry up and thicken mucus in your lungs, making it more difficult to breathe and clear your lungs. To help prevent this effect, drink plenty of fluids unless otherwise directed by your doctor.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor immediately if any of these unlikely but serious side effects occur: involuntary behaviors/movements (e.g., fixed upward stare, neck twisting, tongue movements), mental/mood changes (e.g., confusion, hallucinations), ringing in the ears, shaking (tremors), slow/shallow breathing, trouble urinating, weakness.Seek immediate medical attention if any of these rare but very serious side effects occur: dark urine, easy bruising/bleeding, slow heartbeat, persistent nausea/vomiting, severe abdominal pain, yellowing eyes/skin.This drug may infrequently cause a very serious (rarely fatal) nervous system disorder (neuroleptic malignant syndrome). If you notice any of the following unlikely but very serious side effects, stop taking this medication and seek immediate medical attention: fast/irregular heartbeat, very high fever, mental/mood changes (e.g., confusion, extreme drowsiness), seizure, severe muscle stiffness.A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other side effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada – Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
PRECAUTIONS: See also Warning section.This medication should not be used in a person who is unconscious or has severe breathing problems (e.g., respiratory depression, hypercapnia).Before taking this medication, tell your doctor or pharmacist if you are allergic to any of its ingredients; or to narcotic pain relievers (e.g., morphine); or if you have any other allergies.Before using this medication, tell your doctor or pharmacist your medical history, especially of: abdominal problems (e.g., chronic constipation, ileus, pancreatitis), adrenal gland problem (e.g., Addison’s disease), blood/immune system problems (e.g., bone marrow depression), brain disorders (e.g., seizures, head injury, tumor, increased intracranial pressure), breathing problems (e.g., asthma, emphysema), diabetes, glaucoma, heart problems (e.g., angina, irregular heartbeat), high blood pressure, liver disease, mental/mood problems (e.g., depression, psychosis), a certain spinal problem (kyphoscoliosis), stomach/intestinal problems (e.g., ulcers, blockage), thyroid disease, trouble urinating (e.g., due to enlarged prostate or urethral stricture), use/abuse of drugs/alcohol.This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit the use of alcohol and certain other medications that cause drowsiness. (See also Drug Interactions.)To reduce dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.This medication may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps. Use a sunscreen and wear protective clothing when outdoors.This medication may contain sugar and/or alcohol. Caution is advised if you have diabetes, alcohol dependence, or liver disease. Ask your doctor or pharmacist about using this product safely.The elderly may be more sensitive to the effects of this drug, especially dizziness, drowsiness, mental/mood changes, and low blood pressure.During pregnancy, this medication should be used only if clearly needed. It is not recommended for use in high doses or for long periods during the last 3 months of pregnancy due to increased risk for serious side effects in a newborn baby (e.g., withdrawal symptoms such as irritability, abnormal/persistent crying, diarrhea, seizures). Tell your doctor immediately if you notice any of these symptoms in your newborn. Discuss the risks and benefits with your doctor.This product passes into breast milk and may rarely have undesirable effects on a nursing infant. Tell your doctor immediately if your infant develops increased sleepiness, difficulty feeding, or trouble breathing. Discuss the risks and benefits with your doctor before breast-feeding.
- Promethazine DM
- Promethazine DM Description
- Promethazine DM – Clinical Pharmacology
- Indications and Usage for Promethazine DM
- Adverse Reactions
- Drug Abuse and Dependence
- Promethazine DM Dosage and Administration
- How is Promethazine DM Supplied
- PRINCIPAL DISPLAY PANEL
- More about Promethazine DM (dextromethorphan / promethazine)
- dextromethorphan and promethazine (Phenergan with Dextromethorphan)
- What is dextromethorphan and promethazine?
- What are the possible side effects of dextromethorphan and promethazine?
- What is the most important information I should know about dextromethorphan?
- Related posts:
The common cold is one of the most common illnesses in the world. See Answer
Generic Name: tromethorphan hydrobromide and promethazine hydrochloride
Dosage Form: oral syrup
Medically reviewed by Drugs.com. Last updated on Sep 1, 2019.
- Side Effects
Promethazine DM Description
Each 5 mL (one teaspoonful), for oral administration contains: Dextromethorphan hydrobromide 15 mg; promethazine hydrochloride 6.25 mg. Alcohol 7%.
Inactive Ingredients: Ascorbic acid, citric acid, D&C yellow #10, FD&C yellow #6, menthol, methylparaben, orange pineapple flavor, propylene glycol, propylparaben, purified water, saccharin sodium, sodium benzoate, sodium citrate and sucrose.
Dextromethorphan hydrobromide is a salt of the methyl ether of the dextrorotatory isomer of levorphanol, a narcotic analgesic. It is chemically designated as 3-methoxy-17-methyl-9α, 13α, 14α-morphinan hydrobromide monohydrate. Dextromethorphan hydrobromide occurs as white crystals sparingly soluble in water and freely soluble in alcohol. It has a molecular weight of 370.32, a molecular formula of C18H25NO•HBr•H2O, and the following structural formula:
Promethazine is a racemic compound. Promethazine hydrochloride, a phenothiazine derivative, is chemically designated as 10H-Phenothiazine-10-ethanamine, N,N, α-trimethyl-monohydrochloride.
Promethazine hydrochloride occurs as a white to faint yellow, practically odorless, crystalline powder which slowly oxidizes and turns blue on prolonged exposure to air. It is soluble in water and freely soluble in alcohol. It has a molecular weight of 320.88, a molecular formula of C17H20N2S•HCI, and the following structural formula:
Promethazine DM – Clinical Pharmacology
Dextromethorphan is an antitussive agent and, unlike the isomeric levorphanol, it has no analgesic or addictive properties.
The drug acts centrally and elevates the threshold for coughing. It is about equal to codeine in depressing the cough reflex. In therapeutic dosage dextromethorphan does not inhibit ciliary activity.
Dextromethorphan is rapidly absorbed from the gastrointestinal tract and exerts its effect in 15 to 30 minutes. The duration of action after oral administration is approximately three to six hours. Dextromethorphan is metabolized primarily by liver enzymes undergoing O-demethylation, N-demethylation, and partial conjugation with glucuronic acid and sulfate. In humans, (+)-3-hydroxy-N-methyl-morphinan, (+)-3-hydroxymorphinan, and traces of unmetabolized drug were found in urine after oral administration.
Promethazine is a phenothiazine derivative which differs structurally from the antipsychotic phenothiazines by the presence of a branched side chain and no ring substitution. It is thought that this configuration is responsible for its relative lack (1/10 that of chlorpromazine) of dopamine antagonist properties.
Promethazine is an H1 receptor blocking agent. In addition to its antihistaminic action, it provides clinically useful sedative and antiemetic effects.
Promethazine is well absorbed from the gastrointestinal tract. Clinical effects are apparent within 20 minutes after oral administration and generally last four to six hours, although they may persist as long as 12 hours. Promethazine is metabolized by the liver to a variety of compounds; the sulfoxides of promethazine and N-demethylpromethazine are the predominant metabolites appearing in the urine.
Indications and Usage for Promethazine DM
Promethazine hydrochloride and dextromethorphan hydrobromide oral solution is indicated for the temporary relief of coughs and upper respiratory symptoms associated with allergy or the common cold.
Dextromethorphan should not be used in patients receiving a monoamine oxidase inhibitor (MAOI) (see PRECAUTIONS, Drug Interactions).
Promethazine is contraindicated in comatose states, and in individuals known to be hypersensitive or to have had an idiosyncratic reaction to promethazine or to other phenothiazines.
Antihistamines are contraindicated for use in the treatment of lower respiratory tract symptoms, including asthma.
PROMETHAZINE HYDROCHLORIDE SHOULD NOT BE USED IN PEDIATRIC PATIENTS LESS THAN 2 YEARS OF AGE BECAUSE OF THE POTENTIAL FOR FATAL RESPIRATORY DEPRESSION.
POSTMARKETING CASES OF RESPIRATORY DEPRESSION, INCLUDING FATALITIES, HAVE BEEN REPORTED WITH USE OF PROMETHAZINE HYDROCHLORIDE IN PEDIATRIC PATIENTS LESS THAN 2 YEARS OF AGE. A WIDE RANGE OF WEIGHT-BASED DOSES OF PROMETHAZINE HYDROCHLORIDE HAVE RESULTED IN RESPIRATORY DEPRESSION IN THESE PATIENTS.
CAUTION SHOULD BE EXERCISED WHEN ADMINISTERING PROMETHAZINE HYDROCHLORIDE TO PEDIATRIC PATIENTS 2 YEARS OF AGE AND OLDER. IT IS RECOMMENDED THAT THE LOWEST EFFECTIVE DOSE OF PROMETHAZINE HYDROCHLORIDE BE USED IN PEDIATRIC PATIENTS 2 YEARS OF AGE AND OLDER AND CONCOMITANT ADMINISTRATION OF OTHER DRUGS WITH RESPIRATORY DEPRESSANT EFFECTS BE AVOIDED.
Administration of dextromethorphan may be accompanied by histamine release and should be used with caution in atopic children.
Promethazine may impair the mental and/or physical abilities required for the performance of potentially hazardous tasks, such as driving a vehicle or operating machinery. The impairment may be amplified by concomitant use of other central nervous system depressants such as alcohol, sedatives/hypnotics (including barbiturates), narcotics, narcotic analgesics, general anesthetics, tricyclic antidepressants, and tranquilizers; therefore, such agents should either be eliminated or given in reduced dosage in the presence of promethazine HCl (see PRECAUTIONS – Information For Patients and Drug Interactions).
Promethazine may lead to potentially fatal respiratory depression.
Use of promethazine in patients with compromised respiratory function (e.g., COPD, sleep apnea) should be avoided.
Lower Seizure Threshold
Promethazine may lower seizure threshold. It should be used with caution in persons with seizure disorders or in persons who are using concomitant medications, such as narcotics or local anesthetics, which may also affect seizure threshold.
Bone Marrow Depression
Promethazine should be used with caution in patients with bone marrow depression. Leukopenia and agranulocytosis have been reported, usually when promethazine HCl has been used in association with other known marrow toxic agents.
Neuroleptic Malignant Syndrome
A potentially fatal symptom complex sometimes referred to as Neuroleptic Malignant Syndrome (NMS) has been reported in association with promethazine HCl alone or in combination with antipsychotic drugs. Clinical manifestations of NMS are hyperpyrexia, muscle rigidity, altered mental status and evidence of autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis and cardiac dysrhythmias).
The diagnostic evaluation of patients with this syndrome is complicated. In arriving at a diagnosis, it is important to identify cases where the clinical presentation includes both serious medical illness (e.g., pneumonia, systemic infection, etc.) and untreated or inadequately treated extrapyramidal signs and symptoms (EPS). Other important considerations in the differential diagnosis include central anticholinergic toxicity, heat stroke, drug fever and primary central nervous system (CNS) pathology.
The management of NMS should include 1) immediate discontinuation of promethazine HCl, antipsychotic drugs, if any, and other drugs not essential to concurrent therapy, 2) intensive symptomatic treatment and medical monitoring, and 3) treatment of any concomitant serious medical problems for which specific treatments are available. There is no general agreement about specific pharmacological treatment regimens for uncomplicated NMS.
Since recurrences of NMS have been reported with phenothiazines, the reintroduction of promethazine HCl should be carefully considered.
Use In Pediatric Patients
PROMETHAZINE PRODUCTS ARE CONTRAINDICATED FOR USE IN PEDIATRIC PATIENTS LESS THAN TWO YEARS OF AGE.
CAUTION SHOULD BE EXERCISED WHEN ADMINISTERING PROMETHAZINE PRODUCTS TO PEDIATRIC PATIENTS 2 YEARS OF AGE AND OLDER BECAUSE OF THE POTENTIAL FOR FATAL RESPIRATORY DEPRESSION. RESPIRATORY DEPRESSION AND APNEA, SOMETIMES ASSOCIATED WITH DEATH, ARE STRONGLY ASSOCIATED WITH PROMETHAZINE PRODUCTS AND ARE NOT DIRECTLY RELATED TO INDIVIDUALIZED WEIGHT-BASED DOSING, WHICH MIGHT OTHERWISE PERMIT SAFE ADMINISTRATION. CONCOMITANT ADMINISTRATION OF PROMETHAZINE PRODUCTS WITH OTHER RESPIRATORY DEPRESSANTS HAS AN ASSOCIATION WITH RESPIRATORY DEPRESSION, AND SOMETIMES DEATH, IN PEDIATRIC PATIENTS.
ANTIEMETICS ARE NOT RECOMMENDED FOR TREATMENT OF UNCOMPLICATED VOMITING IN PEDIATRIC PATIENTS, AND THEIR USE SHOULD BE LIMITED TO PROLONGED VOMITING OF KNOWN ETIOLOGY. THE EXTRAPYRAMIDAL SYMPTOMS WHICH CAN OCCUR SECONDARY TO PROMETHAZINE HYDROCHLORIDE ADMINISTRATION MAY BE CONFUSED WITH THE CNS SIGNS OF UNDIAGNOSED PRIMARY DISEASE, e.g., ENCEPHALOPATHY OR REYE’S SYNDROME. THE USE OF PROMETHAZINE PRODUCTS SHOULD BE AVOIDED IN PEDIATRIC PATIENTS WHOSE SIGNS AND SYMPTOMS MAY SUGGEST REYE’S SYNDROME OR OTHER HEPATIC DISEASES.
Excessively large dosages of antihistamines, including promethazine hydrochloride, in pediatric patients may cause sudden death (see OVERDOSAGE). Hallucinations and convulsions have occurred with therapeutic doses and overdoses of promethazine hydrochloride in pediatric patients. In pediatric patients who are acutely ill associated with dehydration, there is an increased susceptibility to dystonias with the use of promethazine HCl.
Administration of promethazine has been associated with reported cholestatic jaundice.
Animal reproduction studies have not been conducted with the drug combination–promethazine and dextromethorphan. It is not known whether this drug combination can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Promethazine and dextromethorphan should be given to a pregnant woman only if clearly needed.
Dextromethorphan should be used with caution in sedated patients, in the debilitated, and in patients confined to the supine position.
Drugs having anticholinergic properties should be used with caution in patients with narrow-angle glaucoma, prostatic hypertrophy, stenosing peptic ulcer, pyloroduodenal obstruction, and bladder-neck obstruction.
Promethazine should be used cautiously in persons with cardiovascular disease or with impairment of liver function.
Information For Patients:
Promethazine and dextromethorphan may cause marked drowsiness or impair the mental and/or physical abilities required for the performance of potentially hazardous tasks, such as driving a vehicle or operating machinery. Ambulatory patients should be told to avoid engaging in such activities until it is known that they do not become drowsy or dizzy from promethazine and dextromethorphan therapy. Children should be supervised to avoid potential harm in bike riding or in other hazardous activities.
The concomitant use of alcohol or other central nervous system depressants, including narcotic analgesics, sedatives, hypnotics, and tranquilizers, may have an additive effect and should be avoided or their dosage reduced.
Patients should be advised to report any involuntary muscle movements.
Avoid prolonged exposure to the sun.
Hyperpyrexia, hypotension, and death have been reported coincident with the coadministration of monoamine oxidase (MAO) inhibitors and products containing dextromethorphan. Thus, concomitant administration of promethazine with dextromethorphan and MAO inhibitors should be avoided (see CONTRAINDICATIONS).
CNS Depressants – Promethazine may increase, prolong, or intensify the sedative action of other central nervous system depressants, such as alcohol, sedatives/hypnotics (including barbiturates), narcotics, narcotic analgesics, general anesthetics, tricyclic antidepressants, and tranquilizers; therefore, such agents should be avoided or administered in reduced dosage to patients receiving promethazine HCl. When given concomitantly with promethazine, the dose of barbiturates should be reduced by at least one-half, and the dose of narcotics should be reduced by one-quarter to one-half. Dosage must be individualized. Excessive amounts of promethazine HCl relative to a narcotic may lead to restlessness and motor hyperactivity in the patient with pain; these symptoms usually disappear with adequate control of the pain.
Epinephrine – Because of the potential for promethazine to reverse epinephrine’s vasopressor effect, epinephrine should NOT be used to treat hypotension associated with promethazine overdose.
Anticholinergics – Concomitant use of other agents with anticholinergic properties should be undertaken with caution.
Monoamine Oxidase Inhibitors (MAOI) – Drug interactions, including an increased incidence of extrapyramidal effects, have been reported when some MAOI and phenothiazines are used concomitantly.
Drug/Laboratory Test Interactions:
The following laboratory tests may be affected in patients who are receiving therapy with promethazine hydrochloride.
Pregnancy Tests: Diagnostic pregnancy tests based on immunological reactions between HCG and anti-HCG may result in false-negative or false-positive interpretations.
Glucose Tolerance Test: An increase in blood glucose has been reported in patients receiving promethazine.
Carcinogenesis, Mutagenesis, Impairment Of Fertility:
Long-term animal studies have not been performed to assess the carcinogenic potential of promethazine or of dextromethorphan. There are no animal or human data concerning the carcinogenicity, mutagenicity, or impairment of fertility with these drugs. Promethazine was nonmutagenic in the Salmonella test system of Ames.
Teratogenic Effects – Pregnancy Category C:
Teratogenic effects have not been demonstrated in rat-feeding studies at doses of 6.25 and 12.5 mg/kg of promethazine HCl. These doses are from approximately 2.1 to 4.2 times the maximum recommended total daily dose of promethazine for a 50-kg subject, depending upon the indication for which the drug is prescribed. Daily doses of 25 mg/kg intraperitoneally have been found to produce fetal mortality in rats.
Specific studies to test the action of the drug on parturition, lactation, and development of the animal neonate were not done, but a general preliminary study in rats indicated no effect on these parameters. Although antihistamines have been found to produce fetal mortality in rodents, the pharmacological effects of histamine in the rodent do not parallel those in man. There are no adequate and well-controlled studies of promethazine in pregnant women.
Promethazine and dextromethorphan should be used during pregnancy only if the potential benefit justifies the risk to the fetus.
Promethazine administered to a pregnant woman within two weeks of delivery may inhibit platelet aggregation in the newborn.
Labor And Delivery:
Limited data suggest that use of promethazine HCl during labor and delivery does not have an appreciable effect on the duration of labor or delivery and does not increase the risk of need for intervention in the newborn. The effect on later growth and development of the newborn is unknown. See also “Nonteratogenic Effects “.
It is not known whether promethazine or dextromethorphan is excreted in human milk.
Caution should be exercised when promethazine and dextromethorphan is administered to a nursing woman.
PROMETHAZINE HYDROCHLORIDE AND DEXTROMETHORPHAN HYDROBROMIDE ORAL SOLUTION IS CONTRAINDICATED FOR USE IN PEDIATRIC PATIENTS LESS THAN TWO YEARS OF AGE (see WARNINGS – Black Box Warning and Use In Pediatric Patients).
Promethazine hydrochloride and dextromethorphan hydrobromide oral solution should be used with caution in pediatric patients 2 years of age and older (see WARNINGS – Use In Pediatric Patients).
Clinical studies of promethazine hydrochloride and dextromethorphan hydrobromide oral solution did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal or cardiac function, and of concomitant disease or other drug therapy.
Sedating drugs may cause confusion and over-sedation in the elderly; elderly patients generally should be started on low doses of promethazine hydrochloride and dextromethorphan hydrobromide oral solution and observed closely.
Dextromethorphan hydrobromide occasionally causes slight drowsiness, dizziness, and gastrointestinal disturbances.
Central Nervous System – Drowsiness is the most prominent CNS effect of this drug. Sedation, somnolence, blurred vision, dizziness; confusion, disorientation, and extrapyramidal symptoms such as oculogyric crisis, torticollis, and tongue protrusion; lassitude, tinnitus, incoordination, fatigue, euphoria, nervousness, diplopia, insomnia, tremors, convulsive seizures, excitation, catatonic-like states, hysteria. Hallucinations have also been reported.
Cardiovascular – Increased or decreased blood pressure, tachycardia, bradycardia, faintness.
Dermatologic – Dermatitis, photosensitivity, urticaria.
Hematologic – Leukopenia, thrombocytopenia, thrombocytopenic purpura, agranulocytosis.
Gastrointestinal – Dry mouth, nausea, vomiting, jaundice.
Respiratory – Asthma, nasal stuffiness, respiratory depression (potentially fatal) and apnea (potentially fatal). (See WARNINGS – Promethazine; Respiratory Depression.)
Other – Angioneurotic edema. Neuroleptic malignant syndrome (potentially fatal) has also been reported. (See WARNINGS – Promethazine; Neuroleptic Malignant Syndrome.)
Paradoxical Reactions – Hyperexcitability and abnormal movements have been reported in patients following a single administration of promethazine HCl. Consideration should be given to the discontinuation of promethazine HCl and to the use of other drugs if these reactions occur. Respiratory depression, nightmares, delirium, and agitated behavior have also been reported in some of these patients.
Drug Abuse and Dependence
According to the WHO Expert Committee on Drug Dependence, dextromethorphan could produce very slight psychic dependence but no physical dependence.
Dextromethorphan may produce central excitement and mental confusion. Very high doses may produce respiratory depression. One case of toxic psychosis (hyperactivity, marked visual and auditory hallucinations) after ingestion of a single dose of 20 tablets (300 mg) of dextromethorphan has been reported.
Signs and symptoms of overdosage with promethazine HCl range from mild depression of the central nervous system and cardiovascular system to profound hypotension, respiratory depression, unconsciousness, and sudden death. Other reported reactions include hyperreflexia, hypertonia, ataxia, athetosis, and extensor-plantar reflexes (Babinski reflex).
Stimulation may be evident, especially in children and geriatric patients. Convulsions may rarely occur. A paradoxical reaction has been reported in children receiving single doses of 75 mg to 125 mg orally, characterized by hyperexcitability and nightmares.
Atropine-like signs and symptoms – dry mouth, fixed dilated pupils, flushing, as well as gastrointestinal symptoms, may occur.
The treatment of overdosage with promethazine and dextromethorphan is essentially symptomatic and supportive. Only in cases of extreme overdosage or individual sensitivity do vital signs including respiration, pulse, blood pressure, temperature, and EKG need to be monitored. Activated charcoal orally or by lavage may be given, or sodium or magnesium sulfate orally as a cathartic. Attention should be given to the re-establishment of adequate respiratory exchange through provision of a patent airway and institution of assisted or controlled ventilation. Diazepam may be used to control convulsions. Acidosis and electrolyte losses should be corrected. The antidotal efficacy of narcotic antagonists to dextromethorphan has not been established; note that any of the depressant effects of promethazine are not reversed by naloxone. Avoid analeptics, which may cause convulsions.
Severe hypotension usually responds to the administration of norepinephrine or phenylephrine. EPINEPHRINE SHOULD NOT BE USED, since its use in a patient with partial adrenergic blockage may further lower the blood pressure.
Limited experience with dialysis indicates that it is not helpful.
Promethazine DM Dosage and Administration
Promethazine hydrochloride and dextromethorphan hydrobromide oral solution is contraindicated for children under 2 years of age (see WARNINGS – Black Box Warning and Use In Pediatric Patients).
The average effective dose is given in the following table:
|Adults||1 teaspoonful (5 mL) every 4 to 6 hours,
not to exceed 30 mL in 24 hours.
|Children 6 Years To Under 12 Years||½ to 1 teaspoonful (2.5 to 5 mL) every 4 to 6 hours,
not to exceed 20 mL in 24 hours.
|Children 2 Years To Under 6 Years||¼ to ½ teaspoonful (1.25 to 2.5 mL) every 4 to 6 hours,
not to exceed 10 mL in 24 hours.
How is Promethazine DM Supplied
This preparation is a clear oral solution with yellow color and pineapple menthol odor, containing promethazine hydrochloride 6.25 mg/5 mL, dextromethorphan hydrobromide 15 mg/5 mL and alcohol 7 percent, and is available in 4 fluid ounce (118 mL) NDC 0603-1586-54 and one pint (473 mL) NDC 0603-1586-58.
Keep tightly closed. Protect from light.
Store at 20° to 25°C (68° to 77°F) .
Dispense in a tight, light-resistant container with a child-resistant closure as defined in the USP.
Chestnut Ridge, NY 10977
PRINCIPAL DISPLAY PANEL
| Promethazine DM
dextromethorphan hydrobromide and promethazine hydrochloride solution
Labeler – Par Pharmaceutical (011103059)
More about Promethazine DM (dextromethorphan / promethazine)
- Side Effects
- During Pregnancy
- Dosage Information
- Drug Interactions
- Support Group
- Pricing & Coupons
- 12 Reviews
- Drug class: upper respiratory combinations
- FDA Alerts (1)
- Promethazine and Dextromethorphan (FDA)
Related treatment guides
- Allergic Rhinitis
- Cold Symptoms
Before taking promethazine,
- tell your doctor and pharmacist if you are allergic to promethazine, other phenothiazines (certain medications used to treat mental illness, nausea, vomiting, severe hiccups, and other conditions) or any other medications. Also tell your doctor and pharmacist if you have ever had an unusual or unexpected reaction when you took promethazine, another phenothiazine, or any other medication. Ask your doctor or pharmacist if you do not know if a medication you are allergic to is a phenothiazine.
- tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements and herbal products you are taking or plan to take. Be sure to mention any of the following: antidepressants (‘mood elevators’) such as amitriptyline (Elavil), amoxapine (Asendin), clomipramine (Anafranil), desipramine (Norpramin), doxepin (Adapin, Sinequan), imipramine (Tofranil), nortriptyline (Aventyl, Pamelor), protriptyline (Vivactil), and trimipramine (Surmontil); antihistamines; azathioprine (Imuran);barbiturates such as phenobarbital (Luminal); cancer chemotherapy; epinephrine (Epipen); ipratropium (Atrovent)medications for anxiety, irritable bowel disease, mental illness, motion sickness, Parkinson’s disease, seizures, ulcers, or urinary problems; monoamine oxidase (MAO) inhibitors such as isocarboxazid (Marplan), phenelzine (Nardil), tranylcypromine (Parnate), and selegiline (Eldepryl, Emsam, Zelapar); narcotics and other pain medication; sedatives; sleeping pills;and tranquilizers. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
- tell your doctor if you have or have ever had an enlarged prostate (a male reproductive gland); glaucoma (a condition in which increased pressure in the eye can lead to gradual loss of vision); seizures; ulcers; blockage in the passage between the stomach and intestine; blockage in the bladder; asthma or other lung disease; sleep apnea; cancer;any condition that affects the production of blood cells in your bone marrow; or heart or liver disease. If you will be giving promethazine to a child, also tell the child’s doctor if the child has any of the following symptoms before he or she receives the medication: vomiting, listlessness, drowsiness, confusion, aggression, seizures, yellowing of the skin or eyes, weakness, or flu-like symptoms. Also tell the child’s doctor if the child has not been drinking normally, has had excessive vomiting or diarrhea, or appears dehydrated.
- tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking promethazine, call your doctor.
- talk to your doctor about the risks and benefits of taking promethazine if you are 65 years of age or older. Older adults should not usually take promethazine because it is not as safe as other medications that can be used to treat the same conditions.
- if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking promethazine.
- you should know that this medication may make you drowsy. Do not drive a car or operate machinery until you know how this medication affects you. If you are giving promethazine to a child, watch the child to be sure he or she does not get hurt while riding a bike or participating in other activities that could be dangerous.
- ask your doctor about the safe use of alcohol while you are taking this medication. Alcohol can make the side effects of promethazine worse.
- plan to avoid unnecessary or prolonged exposure to sunlight and to wear protective clothing, sunglasses, and sunscreen. Promethazine may make your skin sensitive to sunlight.
dextromethorphan and promethazine (Phenergan with Dextromethorphan)
Brand Names: Phenergan with Dextromethorphan, Promethazine DM, Promethazine with Dextromethorphan, Promethazine with DM
Generic Name: dextromethorphan and promethazine
- What is dextromethorphan and promethazine?
- What are the possible side effects of dextromethorphan and promethazine?
- What is the most important information I should know about dextromethorphan?
- What should I discuss with my healthcare provider before taking dextromethorphan and promethazine?
- How should I take dextromethorphan and promethazine?
- What happens if I miss a dose?
- What happens if I overdose?
- What should I avoid while taking dextromethorphan and promethazine?
- What other drugs will affect dextromethorphan and promethazine?
- Where can I get more information?
What is dextromethorphan and promethazine?
Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger cough reflex.
Promethazine is an antihistamine. It blocks the effects of the naturally occurring chemical histamine in your body.
The combination of dextromethorphan and promethazine used to treat cough, itching, runny nose, sneezing, and itchy or watery eyes caused by colds or allergies.
Dextromethorphan will not treat a cough that is caused by smoking, asthma, or emphysema.
Dextromethorphan and promethazine may also be used for purposes other than those listed in this medication guide.
What are the possible side effects of dextromethorphan and promethazine?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using dextromethorphan and promethazine and call your doctor at once if you have any of these serious side effects:
- uncontrollable movements of your eyes, lips, tongue, face, arms, or legs;
- tremors, twitching, or uncontrolled muscle movements in your face, arms, or legs.
- severe dizziness, anxiety, restless feeling, or nervousness;
- hallucinations (seeing or hearing things);
- confusion, hallucinations; or
- slow, shallow breathing, weak pulse;
- nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes); or
- fever, muscle stiffness, confusion, fast or uneven heartbeat, sweating, fainting.
Keep taking dextromethorphan and promethazine and talk with your doctor if you have any of these less serious side effects:
- dizziness, drowsiness, sleepiness, or confusion;
- blurred vision, dry mouth;
- ringing in your ears;
- nausea or vomiting; or
- increased sensitivity to sunlight.
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome. You may report side effects to FDA at 1-800-FDA-1088.
What is the most important information I should know about dextromethorphan?
Call your doctor immediately if you experience uncontrollable movements of your eyes, lips, tongue, face, arms, or legs. These could be early signs of dangerous side effects.
Always ask a doctor before giving a cough or cold medicine to a child. Death can occur from the misuse of cough and cold medicines in very young children.
Do not use dextromethorphan and promethazine if you have used an MAO inhibitor such as isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam), or tranylcypromine (Parnate) within the past 14 days. Serious, life-threatening side effects can occur if you take dextromethorphan and promethazine before the MAO inhibitor has cleared from your body.
Do not use any other over-the-counter cough, cold, or allergy medication without first asking your doctor or pharmacist. If you take certain products together you may accidentally take too much of one or more types of medicine. Read the label of any other medicine you are using to see if it contains dextromethorphan.
Dextromethorphan will not treat a cough that is caused by smoking, asthma, or emphysema.