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It's a very powerful sedative called Doxylamine Succinate. If taken in small doses, the sedative becomes highly effective.

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βˆ™ 13y ago
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βˆ™ 14y ago

Doxylamine succinate is the ingredient the is used for sleep in cough relief medicine

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βˆ™ 15y ago

An active ingredient in NyQuil is the cough suppresant dextromethorphan. It is also called dxm or dex. And when taken in high dosses can give you a buzz.

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βˆ™ 11y ago

Inactive ingreds are just that. Inactive. Nothing of consequence within the human biochemical spectra.

That is.

They have no biochemical reaction.

None.

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Q: What ingredient in NyQuil makes you sleepy?
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Can you take NyQuil after taking a muscle relaxer 2 hours ago?

Yes the muscle relaxer will calm you, but the NyQuil will relive pain and make you sleepy.


Does taking 800mg of ibuprofen and NyQuil make you feel high?

Half a bottle makes you feel high it takes a while too get you there but it does. You get very sleepy before hand. So it sucks.


Can doxycycline be taken with Vick's NyQuil safely?

You can check all know interactions of drugs yourself with the website http://www.drugs.com/drug_interactions.php. Simply type in the drugs you wish to find and select the correct drug from the dropdown menu. All known interactions will then appear.---- Interactions searched:* acetaminophen (Ingredient of Nyquil Cold Medicine) * dextromethorphan (Ingredient of Nyquil Cold Medicine) * doxycycline * doxylamine (Ingredient of Nyquil Cold Medicine) * pseudoephedrine (Ingredient of Nyquil Cold Medicine)---- 0 Interactions found:* No results found - however, this does not necessarily mean no interactions exist. ALWAYS consult with your doctor or pharmacist. ----


Can geritol make you sleepy?

GERITOL is a vitamin ELIXIR, and contains 20% - 25% alcohol (booze). It certainly can make you sleepy. ALSO- some cold medicine elixirs contain alcohol and can make you sleepy as well- ESPECIALLY NYQUIL


What happens when you mix NyQuil and a monster?

I just took the two and I feel almost high, but alittle more sleepy than anything...


Dose NyQuil make you sleepy?

No, it is a flu and cold medication. The antihistamine in the drug can help you sleep, however. You can buy this separately from the other ingredients so you are not taking so much medication that you do not need. Benedryl is one of the brands available.


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Tryptophan what does it do to your body?

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What will happen if you drink a whole bottle of NyQuil and a bottle of wine?

First of all, drinking the whole bottle of Nyquil is a stupid idea, and second of all, I doubt you can have alcohol with that kind of stuff, it is as stupid and wreckless as drinking Nyquil and Red Bull in the same sitting. If you do survive, you will be very sleepy, but is a stupid and dangerous idea.


Who is an imaginary person who makes you sleepy?

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Can you take Mucinex and dayquil together?

Per drug interaction checker at:http://www.drugs.com/drug_interactions.php Drug interaction results for the following 5 drug(s): acetaminophen (Ingredient of Nyquil Cold & Flu)dextromethorphan (Ingredient of Nyquil Cold & Flu)doxylamine (Ingredient of Nyquil Cold & Flu)guaifenesin (Ingredient of Mucinex D)pseudoephedrine (Ingredient of Mucinex D)No results found - however, this does not necessarily mean no interactions exist. ALWAYS consult with your doctor or pharmacist.


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