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Doctor insights on: Nyquil And Allergy Medicine

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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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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 one cup of NyQuil for my cold, and two Benadryls for my allergies?

Can I take one cup of NyQuil for my cold, and two Benadryls 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.

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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How much allergy medicine is too much?

How much allergy medicine is too much?

Dosage: More than the recommended dose unless shire red by doctor. ...Read more

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Is it possible to have taken an allergy medicine that works?

Confusing question.: I would guess that you are asking whether it is possible to find an allergy medication that works. If so, the answer is yes. However, in order to get a better answer, you will have to be more specific on the type of allergic problem you have and what medications you have tried thus far without having any success. ...Read more

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What allergy medicine has fexofenadine in it?

What allergy medicine has fexofenadine in it?

Allegra (fexofenadine): Allegra is the brand name product that contains fexofenadine. There are now generic medications containing fexofenadine available over the counter as well. You must read the active ingredient label to determine if an otc medication contains fexofenadine. ...Read more

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Is it ok to use an inhaler with allergy medicine?

Is it ok to use an inhaler with allergy medicine?

Yes: Inhalers are used to treat asthma and other lung problems and can be taken along with allergy medicines. ...Read more

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Need help docs! My allergy medicine is not working?

See a doctor: If allergy medicine is not working, see a doctor to determine if your problem is indeed an allergy. Then other treatments can be tried. ...Read more

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Does allergy medicine cause the bc pill to lose effect?

Does allergy medicine cause the bc pill to lose effect?

No: Antihistamines and decongestants should not affect the efficacy of oral contraceptives (bcps). ...Read more

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What is the best over-the-counter allergy medicine to use?

What is the best over-the-counter allergy medicine to use?

Allergy medications: Unfortunately there is no "best" brand. Different patients respond better to one medication than to another. Loratadine, diphenhydramine, fexofenadine and certrizine are all effective. ...Read more

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What happened to the allergy medicine chlortrimeton 12 hour?

What happened to the allergy medicine chlortrimeton 12 hour?

Still around: Chlortrimeton is still available as an over the counter allergy medication. It is available as a generic chlorpheniramine tablet as well. Keep in mind that this antihistamine can cause sedation. ...Read more

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Does anybody know of an allergy medicine to give an 11-month-old?

Does anybody know of an allergy medicine to give an 11-month-old?

Please DON'T: Give an 11-month old this type of medication (unless specifically directed by a pediatrician_. ...Read more

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Can I take canesten oral while taking reaction allergy medicine?

Can I take canesten oral while taking reaction allergy medicine?

No: Not if you are taking allergy medicine for canesten oral ingredients, nor take it if you are taking astemezole, or have terfenadine lying around since it has been off market for couple of years now (also known as seldane). ...Read more

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What is the best allergy medicine for kids ages 10 & 4 almost 5 yrs old.?

What is the best allergy medicine for kids ages 10 & 4 almost 5 yrs old.?

Depends on symptoms : The best allergy treatment depends on what kind of symptoms your child is having. Allergy cough is treated differently than allergy runny nose or allergy stuffy nose. See your doctor for discussion of these different options. ...Read more