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Doctor insights on: Can Antihistamines Control Or Prevent Vomiting

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Can antihistamines control or prevent vomiting?

Can antihistamines control or prevent vomiting?

Yes: Benedryl is frequently used as part of a nausea preventing regimen for chemotherapy. By itself it is not very effective. Other causes of nausea, such as sinus congestion or fluid in the inner ear, may be treatable with antihistamines. ...Read more

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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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Can taking more antihistamines make the person less likely to vomit?

Can taking more antihistamines make the person less likely to vomit?

H2 histamine blocker: H2 histamine blockers like Zantac (ranitidine) block acid and histamine release. I don't know if this would help vomiting. ...Read more

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Can taking antihistamines prophylactically prevent death due to anaphylaxis?

Can taking antihistamines prophylactically prevent death due to anaphylaxis?

No: There is no evidence that antihistamine alone can prevent an anaphylactic reaction although it may potentially reduce the severity. Avoidance of the trigger is the only answer. Failing that, adrenaline is the only effective treatment. Be sure to have it with you. I like the new product called Auvi-Q which provides an audio instruction and is easy to carry. ...Read more

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What is a good antihistamine to prevent excess mucus build up during allergy seasons?

What is a good antihistamine to prevent excess mucus build up during allergy seasons?

Older kind: The older AH such as Benadryl, (diphenhydramine) Atarax, Chlortrimeton actually possess more drying effect than the newer generation non-sedating ones. However you are also more likely to get drowsy from them. However allergy is not the only thing which causes excessive mucus and a steroid nasal spray will likely work better. ...Read more

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Can you prevent an allergic reaction to food by taking antihistamines before eating?

Can you prevent an allergic reaction to food by taking antihistamines before eating?

No: The only effective treatment for a food allergy is avoidance of the food. Antihistamines should not be relied upon to prevent food allergy symptoms which can be severe and even life-threatening. ...Read more

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Are antihistamines ever known to bring out the hives they r being taken to prevent? My hives get bumped up within 90mins of any antihistamine.

Are antihistamines ever known to bring out the hives they r being taken to prevent? My hives get bumped up within 90mins of any antihistamine.

No: Depending what antihistamine you are taking, they usually take 30 to 45 minutes to start working, your hives do not worsen from them but if you are taking the medicine when the hives have already started, they are not controlling them very well. See an allergist and they can guide your treatment better. ...Read more

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I have no antihistamine at home or lyclear cream to use for my scabies i'm so itchy. What do I have to do to prevent it?

I have no antihistamine at home or lyclear cream to use for my scabies i'm so itchy. What do I have to do to prevent it?

Needs treatment: Scabies rash cannot be treated with antihistamine. You need an anti-mite cream or oral medication to kill them. Even then the itching may linger on for many more days after. See your doctor if otc anti-mite agents failed. ...Read more

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I am anxious, stressed or even excited. I have heard that antihistamines work well to prevent this, is this true?

I am anxious, stressed or even excited. I have heard that antihistamines work well to prevent this, is this true?

Yes: Antihistamines can be helpful for treating anxiety. Psychiatrists will commonly prescribe Hydroxyzine pamoate for the treatment of anxiety that is technically an antihistamine. This medication is safer than many alternatives for anxiety and can be used in an as needed way. Talk with your physician for more information. Stay safe! ...Read more

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Do antihistamines like Benadryl (diphenhydramine) help prevent oral allergy syndrome?

Do antihistamines like Benadryl (diphenhydramine) help prevent oral allergy syndrome?

Probably not: Oral allergy syndrome is usually caused by pollens and sometimes nuts. Claritin, zyrtec and Allegra (fexofenadine) can help with pollen allergies. But like any other allergy, it is best to stay away from the problem. Have an allergist test you and see what treatment would be best. ...Read more

Dr. Paul Carter
626 doctors shared insights

Antihistamine (Definition)

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


Dr. Oscar Novick
2,118 doctors shared insights

Vomiting (Definition)

Vomiting = expulsion of stomach ...Read more