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Review: taking Klonopin and NyQuil together

Summary: drug interactions are reported among people who take Klonopin and NyQuil together.

This review analyzes the effectiveness and drug interactions between Klonopin and NyQuil. It is created by eHealthMe based on reports of 18 people who take the same drugs from FDA and social media, and is updated regularly.


You are not alone: join a support group for people who take Klonopin and NyQuil >>>

On Mar, 26, 2015: 18 people who take Klonopin, NyQuil are studied

Klonopin, NyQuil outcomes

Drug combinations in study:
- Klonopin (clonazepam)
- NyQuil (acetaminophen; dextromethorphan; doxylamine; pseudoephedrine)

Drug effectiveness over time :


Drug effectiveness by gender :


Drug effectiveness by age :


Most common drug interactions over time * :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
n/an/an/an/an/aDiabetes Mellitusn/aPain
Influenza Like Illness
Injection Site Discolouration
Hepatic Steatosis
Abdominal Discomfort
Injection Site Erythema
Injection Site Pruritus
Thyroid Function Test Abnormal

Most common drug interactions by gender * :

Influenza Like IllnessChest Discomfort
Injection Site ErythemaObstructive Airways Disorder
Hepatic SteatosisBrain Oedema
Abdominal DiscomfortProductive Cough
Injection Site PruritusSarcoidosis
Liver Function Test AbnormalPyrexia
PainDisturbance In Attention
Thyroid Function Test AbnormalFall
OligomenorrhoeaEmotional Disorder

Most common drug interactions by age * :

n/an/an/aDrug IneffectiveNauseaDiabetes MellitusSarcoidosisn/a
NasopharyngitisObstructive Airways Disorder
PainProductive Cough
Thyroid Function Test AbnormalWhite Blood Cell Disorder
Abdominal DiscomfortChest X-ray Abnormal
Liver Function Test Abnormal
Hepatic Steatosis
Injection Site Pruritus

* Some reports may have incomplete information.

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

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Do you take Klonopin and NyQuil?




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- support group for people who take Klonopin
- support group for people who take NyQuil

Recent related drug studies (Check your drugs):

Complete drug side effects:

On eHealthMe, Klonopin (clonazepam) is often used to treat stress and anxiety. Nyquil (acetaminophen; dextromethorphan; doxylamine; pseudoephedrine) is often used to treat common cold. Find out below the conditions the drugs are used for, how effective they are, and any alternative drugs that you can use to treat those same conditions.

What is the drug used for and how effective is it:

Other drugs that are used to treat the same conditions:

NOTE: The study is based on active ingredients. Other drugs that have the same active ingredients are also considered.

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only, and has not been supported by scientific studies or clinical trials unless otherwise stated. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

You may report adverse side effects to the FDA at or 1-800-FDA-1088 (1-800-332-1088).

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.


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