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Doctor insights on: Does Champix Interact With Antihistamines

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I had grapefruit, then took 10mg of cetirizine about an hour or so later. I had no idea grapefruit could interact with antihistamines. Am I in danger?

I had grapefruit, then took 10mg of cetirizine about an hour or so later. I had no idea grapefruit could interact with antihistamines. Am I in danger?

No.: There is a protein in grapefruit that can inhibit one of the systems in the body that metabolize drugs. So, this may increase the potency of certain family of drugs, by decreasing the breaking down of the drug in the body. The two antihistamines that were in this category have been removed from the market, so there is probably a small, but clinically insignificant, effect. Don't worry.

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Benadryl (Definition)

Diphenhydramine is a sedating antihistamine which is a kind of antihistamine type drug (common ...Read more


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Do Benadryl (diphenhydramine) and Adderall interact with each other?

Do Benadryl (diphenhydramine) and Adderall interact with each other?

Drug interactions.: Benadryl (diphenhydramine) can be sedating (typically) or stimulating (unusual). When a reaction occurs opposite to what is typically experienced, it is called a paradoxical reaction. A pharmacist can run a drug interaction screen for you and this is why it is wise to get all of your medications from a single source. Decongestants are stimulants and often used in combination with Benadryl (diphenhydramine) and could be a bad mix.

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If Benadryl's plasma clearance is about 9 hours x 5, how long would it remain active to affect the brain and interact with other medications?

If Benadryl's plasma clearance is about 9 hours x 5, how long would it remain active to affect the brain and interact with other medications?

Less than 12 hrs: It may take a long time for a drug to completely clear from the body, the biochemical effect occurs only with a certain blood level. I have yet seen anyone getting drowsy from Benadryl (diphenhydramine) for more than 12 hours. It is the drug level that matters.

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I gave expired antihistamine syrup to my 30 months old son incidentally...Is it dangerous? What s the side effect on him?

I gave expired antihistamine syrup to my 30 months old son incidentally...Is it dangerous? What s the side effect on him?

Expired drugs: There should be no side effects as expiration is usually based on loss of drug effectiveness. Drug companies err on the side of shortening times to expiration. Actually many drugs are effective long after expiration dates. Expired drugs are commonly used effectively by volunteer organizations when no other drugs are available. Relax!

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I have sever hives which continued over 3 weeks so far. What might be the cause (s)? Would telfast or aerius antihistamine meds. Work? Which one better

I have sever hives which continued over 3 weeks so far. What might be the cause (s)? Would telfast or aerius antihistamine meds. Work? Which one better

Hives.: Books are written discussing the many causes of hives. The most common cause would be a reaction to a new medication or food. It is often very hard to find the precise cause without doing an elimination diet and or stopping the inciting medication. Hives can also be caused by viruses, airborne allergies, cold, heat, friction and internal disease.

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Champix side effects?

Champix side effects?

Chantix: I am assuming your mean Chantix. Tooany in the list but in my practice mood instability has been quite lot.

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What are the common uses of antihistamine?

What are the common uses of antihistamine?

Antihistamine 4 itch: Antihistamines (ah) block histamine receptors and stop histamine from causing itching and swelling. They are mainly used to treat allergies and hives. Some are sedating; those are used as sleep aids. Many otc sleep meds contain Diphenhydramine (benadryl).

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Is Flixonase an antihistamine?

Is Flixonase an antihistamine?

Steroid Nasal Spray: Flixonase or Flonase (fluticasone proprionate) is a steroid nasal spray commonly used to treat allergic rhinitis by decreasing the allergic inflammation in the nasal mucosa. It is not an antihistamine.

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Is there an antihistamine cream?

Is there an antihistamine cream?

Yes, but avoid: Benadryl (diphenhydramine) cream is available. While some people find temporary relief for insect bites with this, in general it is not very effective compared to other antihistamines taken as pills or tabs. For generalized rash, it really doesn't make sense.

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Taking champix while on seriquel xr? Is it safe?

Taking champix while on seriquel xr? Is it safe?

Varenicline/Quetiap: Champix (varenicline) has not been shown to have any clinically significant interaction with seroquel (quetiapine). However, there have been reported cases of exacerbated manic episodes in bipolar patients taking varenicline. Caution is therefore advised. Be sure the bipolar condition is under control before commencing varenicline therapy & even then, under close medical supervision. Good luck!

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What antihistamine has the strongest antiemetic properties?

Dramamine (dimenhydrinate): Dramamine (dimenhydrinate) and Meclizine are some that can be used. Different for different patients.

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If someone takes 52 antihistamines, is this something to be concerned about?

Yes: It tells me that this is a risky behavior and likely a suicidal attempt. Call the psychiatrist or the suicide hotline.

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Is Flonase an antihistamine?

Is Flonase an antihistamine?

No: Flonase is a nasal steroid spray. It is often used in conjunction with an antihistamine. The most commonly used antihistamines today are the non-sedating antihistamines: claritin, Allegra and zyrtec. Each of these had a generic drug available, too.

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Which antihistamine for a rash?

Which antihistamine for a rash?

It depends on what: The rash is. If you have hives or an itchy rash - Benadryl (diphenhydramine) may be helpful.

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I was wondering is antihistamine meant to burn?

No: Antihistamines are medications available as oral tablets, syrups or nasal sprays (Azelastine) to treat the symptoms of allergies.

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Can chantix stop my period?

Can chantix stop my period?

Chantix: Menstrual disorders are possible Chantix side effects.

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What are non-sedative antihistamines?

The newer ones: Antihistamines can cause sedation by entering the brain's tissue and binding to h1 receptors. (called "crossing the blood brain barrier".) that effect is desirable if you are taking an antihistamine for sleep (e.g. Benadryl). The newer antihistamines don't cross the blood brain barrier as much. These include (least to most sedate) fexofenadine (allegra), Cetirizine (zyrtec), loratidine (claritin).

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Are antihistamines for asthma control?

Are antihistamines for asthma control?

Sometimes: Whren asthma attacks are triggered by allergen, an antihistamine can be helpful. Recommend a non-centrally acting antihistamine like Claritin (loratadine) to prevent sedation. Talk t o you physician before your start any self-medication.

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What do antihistamines do for vertigo?

Vertigo: They may help if it is caused by an allergy but otherwise not much.

Dr. Paul Carter
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Antihistamine (Definition)

Sedating and non-sedating antihistamines prevent and treat allergic reactions, and are ...Read more