Review: NyQuil and Benadryl drug interactions
This review analyzes the interactions between NyQuil and Benadryl. It is created by eHealthMe based on 106 people who have drug interactions while taking the drugs. The review uses reports from FDA and social media, and is updated regularly.
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What are the drugs
Nyquil (latest outcomes from 1,080 users) has active ingredients of acetaminophen; dextromethorphan; doxylamine; pseudoephedrine. It is often used in herpes labialis (oral herpes simplex).
Benadryl (latest outcomes from 29,259 users) has active ingredients of diphenhydramine hydrochloride. It is often used in allergies.
On Mar, 4, 2014: 106 people who reported to have interactions when taking NyQuil, Benadryl are studied
Drug combinations in study:
- NyQuil (acetaminophen; dextromethorphan; doxylamine; pseudoephedrine)
- Benadryl (diphenhydramine hydrochloride)
Most common interactions experienced by people in the use of NyQuil, Benadryl:(click on each outcome to view in-depth analysis, incl. how people recovered)
|Interaction||Number of reports|
|Blood Pressure Increased||106|
|Cerebrovascular Accident Nos (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)||61|
|Supraventricular Arrhythmia Nos (heart beats very fast)||60|
|Dyspnoea (difficult or laboured respiration)||20|
|Mental Impairment Nos (a condition affecting the body, perhaps through sight or hearing loss, a mobility difficulty or a health condition)||15|
|Cardiac Failure Congestive||9|
Most common interactions experienced by people in long term use of NyQuil, Benadryl:(click on each outcome to view in-depth analysis, incl. how people recovered)
How effective are the drugs:
|not at all||somewhat||moderate||high||very high|
Top conditions involved for these people * :n/a
Top co-used drugs for these people * :n/a
* Approximation only. Some reports may have incomplete information.
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Complete drug side effects:
On eHealthMe, Nyquil (acetaminophen; dextromethorphan; doxylamine; pseudoephedrine) is often used to treat herpes labialis (oral herpes simplex). Benadryl (diphenhydramine hydrochloride) is often used to treat allergies. 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:
- Nyquil is used in:
- Benadryl is used in:
Other drugs that are used to treat the same conditions:
- Nyquil alternatives:
- Benadryl alternatives:
Can you answer these questions (what is this?):
- By Krisleigh: How do you know for sure benadryl caused the hair loss
I'm 36 years old and have been taking Benadryl to help sleep for 6-8 months, 4-5 nights a week. The past couple months I've noticed a ton of shedding especially around my crown towards the mid to back of my part and now see my scalp through the hair that is still there. I'm starting to panic and ha ...
- By susan2764 : What would cause a false positive for methadone
I am testing positive for methadone that I don't take. what will cause a false positive
- By Mia: Can i take saphris with sudafed and benadryl
Is it ok to take sudafed and Benadryl cold and flu tablets with saphris bipolar tablets?
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I started having leg pains at night, lower leg felt like the muscle and bone were being pulled causing sharp pain. It was relieved by getting up and walking but would last most of the night. I finally realized after suffering this over and over for months, that it only happened when I had taken be ...
NOTE: The study is based on active ingredients. Other drugs that have the same active ingredients are also considered.
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