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Doctor insights on: Nyquil For Allergies

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Please tell me, could I take nyquil and allergy medicine together?

Please tell me, could I take nyquil and allergy medicine together?

Antihistamine: Nyquil has Diphenhydramine in it, I believe, which is Benadryl (diphenhydramine) which is an allergy medicine and causes somnolence. The dose is not high enough and long acting to preclude the use of the daytime, non-drowsy allergy medicine to help you during the day. ...Read more

Dr. John Chiu
2,638 Doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more


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Can I take one cup of NyQuil for my cold, and two Benadryl's for my allergies?

Can I take one cup of NyQuil for my cold, and two Benadryl's for my allergies?

2AntihistaminsSimila: Nyquil cantains aDoxylamine.Acetaminophen and Dextromethorfan
Benadryl (diphenhydramine) is an antihistamine and Doxylamine is also antihistamine. Both are first generation antihistamines and cause sedation. I will not advice to take 50 mgm (2x25mgm)of Benadryl (diphenhydramine) and Nyquil. ...Read more

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I was wondering if I could take nyquil for my cold and benadryl (diphenhydramine) for my allergies?

I was wondering if I could take nyquil for my cold and benadryl (diphenhydramine) for my allergies?

Which Nyquil?: At any rate all Nyquils contain an antihistamine, so you don't want to combine them with benadryl, (diphenhydramine) unless you have got a really severe allergic reaction. Combination would cause more side effects as drowsiness, so be careful, good luck ...Read more

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Good Evening I'm battling allergies right now and I was wondering if I could take mucinex or NyQuil after taking Allegra at 10pm?

Good Evening I'm battling allergies right now and I was wondering if I could take mucinex or NyQuil after taking Allegra at 10pm?

Probably: Allegra typically is non-sedating and even NyQuil is usually well tolerated. If one is sensitive to Allegra, then combine with caution if you need to be alert in the morning. Mucinex can be taken with both. ...Read more

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I took a non drowsy allergy pill earlier today (about 10 hours ago to be exact), containing pseudoephedrine. Can I take Nyquil before going to bed?

I took a non drowsy allergy pill earlier today (about 10 hours ago to be exact), containing pseudoephedrine. Can I take Nyquil before going to bed?

Yes you can: But make sure you do not combine much of antihistamines (allergy medicines) in the future, good that you asked, always exercise caution with multiple medications, ...Read more

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How long is clonazepam in your system? I took a 0.25 mg dose for anxiety 24 hrs ago. Today, I have severe allergies and would like nyquil to sleep.

Taking meds together: I assume your question is if it is ok for you to take both clonazepam and benadryl (diphenhydramine) together since both of them make you drowsy. Clonazepam can be inside your system very long since it has a long half life, like a week to 10 days. However its action duration lasts for about 6-12 hours only. How much drowsiness you have when you take both medications depending on your tolerance. In general, it's ok. ...Read more

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I took allegra 24hr then flonase in AM. Cold symptoms persist with sneezing and stuffy! Like allergy. Can I take Nyquil tonight?

I took allegra 24hr then flonase in AM. Cold symptoms persist with sneezing and stuffy! Like allergy. Can I take Nyquil tonight?

Yes you can: Nyquil has different combo ingredients though, good that you asked, always exercise caution with multiple medications, and read the labels carefully, best wishes ...Read more

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I took a 24 hour allergy medicine 4.5 hours ago and it hasn't helped at all with my runny nose and watery eyes. Could I take nyquil to help me sleep?

I took a 24 hour allergy medicine 4.5 hours ago and it hasn't helped at all with my runny nose and watery eyes. Could I take nyquil to help me sleep?

Yes you can: Yes you can take extra nyquil. You might also want to try otc allergy eye drops to help relieved your eye symptoms. However, those are weak medications and only work for mild symptoms. At this stage, it would be better if you seek professional help to treat your symptoms more appropriately to prevent you from getting a sinusitis. ...Read more

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Can I take nyquil 4 hrs after taking T3's?

Can I take nyquil 4 hrs after taking T3's?

Depends on your: Body size, tolerance to meds, previous exposure, etc. If you are average size and have taken these meds before, it should be ok. You might want to take half dose first, if you want to make sure. ...Read more

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4 Nyquil and mucinexdm okay to mix?

4 Nyquil and mucinexdm okay to mix?

Too much: 4 Nyquil at a time is too much acetaminophen unless you are first seen by your health care provider and prescribed that much. ...Read more

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Could I take nyquil that expired march of 2013?

Recommend against: Expiration dates are used for reasons. I cannot predict it would cause harm or that it would not work, but the risk outweighs the benefit. I would get non-expired nyquil. ...Read more

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Nyquil for 4yr old?

Nyquil for 4yr old?

Too strong: Equivalents for this age group are alahist dm or Bromfed (brompheniramine) dm. ...Read more

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What would happen if I took nyquil if I don't have a cold?

What would happen if I took nyquil if I don't have a cold?

Sedation: You'd get sleepy and might feel a little hungover the next day, just like you do when you take it for a cold. ...Read more

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Is nyquil bad for the liver?

Is nyquil bad for the liver?

Not if dosed right: If taken as prescribed, it will not hurt your liver. If taken improperly (too much, for example) if definitely could. Nyquil contains Acetaminophen (tylenol) which can cause liver damage and even liver failure if overdosed. ...Read more

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Will nyquil affect a urine test?

Will nyquil affect a urine test?

Drug screen?: If you are asking if nyqui shows up on a urine drug screen, the standard urine drug screens do not test for nyquil or its basic components nor do they typically interfere with the detection of other substances such as cocaine, amphetamine, cannabis, etc. ...Read more

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Can I take Nyquil with Losartan?

Can I take Nyquil with Losartan?

Hypertension: Caution should be used if the product contains phenylephrine, which is the nasal decongestant. This may elevate blood pressure. ...Read more

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Can my 6 yr old son take nyquil?

Can my 6 yr old son take nyquil?

No: Nyquel is not safe for a 6 year old. There are age appropriate version of it containing Diphenhydramine and guaifenecin but not alcohol. ...Read more