How much nyquil can I give my 6 year old?

Vicks NyQuil FAQ

Q: What is NyQuil?

A: NyQuil is an over-the-counter medication that treats nighttime symptoms of the common cold and flu such as sneezing, sore throat, headache, minor aches and pains, fever, runny nose, and cough.

Q: What does NyQuil do?

A: NyQuil relieves your sneezing, sore throat, headache, minor aches and pains, fever, runny nose, and cough, so you can get the rest you need.

Q: How often can I take NyQuil?

A: Adults and children 12 years of age or older can take NyQuil every six hours

Q: How much NyQuil can I take?

A: If you are taking NyQuil LiquiCaps, you can take two LiquiCaps with water every six hours. If you are taking NyQuil Liquid, you can take 30 mL every six hours.

Q: How long does it take for NyQuil to work?

A: This depends on many factors but it usually takes 30 minutes for NyQuil to start working.

Q: How much NyQuil is safe?

A: You should not exceed four doses of NyQuil in a 24-hour period.

Q: How much alcohol is in NyQuil?

A: NyQuil Liquid contains 10 percent alcohol. NyQuil LiquiCaps does not contain alcohol. Alcohol-Free NyQuil Cold & Flu Nighttime Relief Liquid does not contain alcohol.

Q: Can I give NyQuil to a child?

A: No, children under the age of 12 should not take NyQuil. However, children ages six to 11 may take Children’s NyQuil. Use as directed (15 mL every six hours). Do not exceed four doses within 24 hours. Children ages four to six may take Children’s NyQuil if prescribed by a doctor. Children under four years old should not take Children’s NyQuil.

Q: Can I take NyQuil while pregnant or breast-feeding?

A: If you are pregnant or breast-feeding, check with your health professional before taking NyQuil. He or she can determine if it is safe for you.

Q: What is the active ingredient in NyQuil?

A: NyQuil has three active ingredients: acetaminophen (a pain reliever/fever reducer), dextromethorphan HBr (a cough suppressant) and doxylamine succinate (an antihistamine). Q: Does NyQuil expire?A: Yes. Do not use NyQuil beyond the expiration date on the package.

Q: What are the side effects of NyQuil?

A: NyQuil may cause marked drowsiness. It is important to avoid alcoholic drinks when taking NyQuil and be careful when driving a motor vehicle or operating machinery. In children, NyQuil may cause excitability.

Q: Will NyQuil make me sleepy?

A: Yes. NyQuil may cause marked drowsiness.

Q: What are the different types of NyQuil?

A: NyQuil comes as a liquid or gel caps. NyQuil relieves your sneezing, sore throat, headache, minor aches and pains, fever, runny nose, and cough, so you can get the rest you need. NyQuil SEVERE delivers maximum symptom-fighting ingredients to relieve your worst cold symptoms at night. NyQuil Cough Suppressant relieves your cough so you can get the sleep you need.

Q: What’s the difference between NyQuil and NyQuil SEVERE?

A: NyQuil SEVERE delivers maximum symptom-fighting ingredients* to relieve your worst cold symptoms. Besides the active ingredients in NyQuil, NyQuil SEVERE contains 10 mg of phenylephrine HCl, a nasal decongestant.

*Among OTC cold & flu medicines

Q: Are there any warnings I should be aware of when taking NyQuil?

A: NyQuil contains acetaminophen. Severe liver damage may occur if you: take more than four doses of NyQuil within 24 hours, take NyQuil with other drugs containing acetaminophen, consume three or more alcoholic drinks every day while taking NyQuil. If you have a severe sore throat and it persists for more than two days and is accompanied or followed by fever, headache, rash, nausea, or vomiting, consult a doctor promptly. Be sure to read the label carefully, and use NyQuil as directed. Learn more about the active ingredients in NyQuil and NyQuil SEVERE.

Q: Can I take NyQuil if I have high blood pressure?

A: In patients with hypertension, the use of certain medications may raise their blood pressure. Decongestants provide relief by narrowing blood vessels to reduce nasal stuffiness, but this can potentially affect other blood vessels, which may increase blood pressure. NyQuil™ HBP is free of decongestants for people with high blood pressure. To learn more, click here.

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Vick’s Nyquil brand encompasses a wide range of medicines designed to treat colds, flu, and other respiratory illnesses. These medicines provide hours of relief from symptoms, but do not cure the underlying illness, so you should consult a doctor if symptoms become severe or persistent. When you are suffering from a cold, Nyquil cold medicines can help ease symptoms, including cough, a runny nose, and sneezing.

Liquid cold relief medicines

Nyquil liquid cold medicine comes in different flavors, such as cherry, berry, and vanilla cherry swirl, to make it more palatable. Nyquil is a nighttime cold remedy, so it should not be taken during the day or it might make you drowsy. Vicks makes a daytime cold medicine called Dayquil that does not cause drowsiness. Children’s Nyquil is also available for kids with cold and flu symptoms.

Treating colds, flu, and sinus problems

Another cough, cold and flu medications you can try is Nyquil liquid capsules, which contain the same medicine as liquid Nyquil in a gel capsule that can be swallowed whole. Vick’s also makes Nyquil Sinex, a version of Nyquil designed for those with sinus congestion as well as other symptoms. Before choosing a particular Nyquil product, assess your symptoms to see which version is right for you. Choose a variety that treats your specific symptoms but does not include medication for symptoms you do not have. In addition to Nyquil, also carries other cold relief medicines, including the store brands Wal-Phed and Wal-Flu.

Children’s Nyquil Cold & Cough

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Per 15ml (3tsp):

  • Chlorpheniramine maleate 2mg (antihistamine)
  • Pseudoephedrine HCL 30mg (decongestant)
  • Dextromethorphan HBr 15mg (cough suppressant)


Frequent cough, runny nose, nasal congestion, chest congestion. I only use a cold medication like this if my child’s symptoms are interfering with sleep, eating or if they are generally miserable with congestion. The antihistamine and decongestant combination in this cold medication will temporarily relieve most symptoms of the common cold. It opens up nasal congestion and dries up nasal secretions. It also helps reduce cough caused by secretions running down the throat. The Dextromethorphan (DM for short) is the cough suppressant part of this medication. It will offer temporary relief to that nagging cough caused by a “tickle” in the throat. The combination of DM and the other ingredients will usually help your child get some much-needed rest for a few hours.


When I give my children cold medication, I have found that the nasal passages can become too dry, that’s why it’s important to use saline nasal spray throughout the day and a humidifier in the bedroom (see natural cold treatments).


It is safe to use in children six-months-old and above. The sedative effects of the antihistamine usually overcome the “revving-up” effects of the decongestant to produce an overall “calming” effect, which will help your child sleep. Occasionally, the antihistamine has the opposite effect, which may lead to some missed sleep but is not dangerous. Uncommon side effects are headache, upset stomach and dizziness. If your child has a history of seizures, high blood pressure, heart disease, thyroid disease or is taking medications for any of these conditions, consult your doctor before taking this medication. If your child has Croup, do not use this medication because of its drying effect.


All doses are every 6 hours

August 28, 2013 October 2, 2017 Dr. Bill Sears

Children’s Nyquil (chlorpheniramine / dextromethorphan / pseudoephedrine) Drug Interactions

A total of 472 drugs are known to interact with Children’s Nyquil (chlorpheniramine / dextromethorphan / pseudoephedrine).

  • 52 major drug interactions
  • 413 moderate drug interactions
  • 7 minor drug interactions

Show all medications in the database that may interact with Children’s Nyquil (chlorpheniramine / dextromethorphan / pseudoephedrine).

Check for interactions

Type in a drug name to check for interactions with Children’s Nyquil (chlorpheniramine / dextromethorphan / pseudoephedrine).

Most frequently checked interactions

View interaction reports for Children’s Nyquil (chlorpheniramine / dextromethorphan / pseudoephedrine) and the medicines listed below.

  • Benadryl (diphenhydramine)
  • benzonatate
  • Iron Fumarate (ferrous fumarate)
  • magnesium citrate
  • Melatonin Time Release (melatonin)
  • Motrin (ibuprofen)
  • multivitamin
  • Vicks Dayquil Cold & Flu Relief (acetaminophen / dextromethorphan / phenylephrine)
  • Vitamin D3 (cholecalciferol)
  • Vyvanse (lisdexamfetamine)
  • Xyzal Allergy 24HR (levocetirizine)

Children’s Nyquil (chlorpheniramine / dextromethorphan / pseudoephedrine) alcohol/food interactions

There is 1 alcohol/food interaction with Children’s Nyquil (chlorpheniramine / dextromethorphan / pseudoephedrine)

Children’s Nyquil (chlorpheniramine / dextromethorphan / pseudoephedrine) disease interactions

There are 11 disease interactions with Children’s Nyquil (chlorpheniramine / dextromethorphan / pseudoephedrine) which include:

  • cardiovascular disease
  • anticholinergic effects
  • asthma/COPD
  • cardiovascular
  • renal/liver disease
  • psychiatric conditions
  • GI narrowing
  • PKU
  • BPH
  • diabetes
  • glaucoma

More about Children’s Nyquil (chlorpheniramine / dextromethorphan / pseudoephedrine)

  • Side Effects
  • During Pregnancy
  • Dosage Information
  • Drug class: upper respiratory combinations
  • FDA Alerts (1)

Related treatment guides

  • Cough and Nasal Congestion

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.


Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.


Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.


Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.


No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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