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Doctor insights on: Zantac Antihistamine

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Is Zantac (ranitidine) an antihistamine?

Is Zantac (ranitidine) an antihistamine?

Yes: There are now 4 types of histamine receptors. Zantac (ranitidine) acts on the h2 receptor resulting in blocking stomach acid thereby treating heartburn. Allergies are treated with h1 blocking type medications including claritin, (loratadine) zyrtec and allegra. Some medications have both actions to block both h1 and h2 receptor. For anaphylaxis, zantac can be added for it's effect on blood vessels. ...Read more

Dr. Sanjay Talati
651 Doctors shared insights

Ranitidine (Definition)

Treats and prevents heartburn with acid indigestion. Also treats stomach ulcers, gastroesophageal reflux disease (gerd), and conditions that cause your stomach to make too much acid (such as zollinger-ellison syndrome). This medicine ...Read more


Dr. Al Hegab Dr. Hegab
2 doctors agreed:
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Zantac (ranitidine) has histamine ingredients. I'm taking it recently. Noticed some inverse effect, my hives is not popping out too! It should be antihistamine right?

Dr. Al Hegab Dr. Hegab
2 doctors agreed:
Zantac (ranitidine) has histamine ingredients. I'm taking it recently. Noticed some inverse effect, my hives is not popping out too! It should be antihistamine right?

Zantac (ranitidine): Is an antihistamine itself, it blocks H2 receptors, histamine has more than one type of receptors in the human tissues. H1, blocked by the usual antihistamines, H2, plays a role in stomach acid regulation, which zantac (ranitidine) blocks. Zantac at times is used in severe allergic reactions or severe urticaria, together with H1 blockers to control symptoms, so your deduction is right ...Read more

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When should I stop taking ranitidine and an antihistamine when my hives are gone?

Ask your doctor: Typically antihistamines including h2 anti- histamines such as ranitidine are gradually tapered off after roughly a week of being hive free. It is best to consult with your prescribing physician first, since every case of hives can be different. ...Read more

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What's better for hives, Zantac 150 or benadryl (diphenhydramine)?

What's better for hives, Zantac 150 or benadryl (diphenhydramine)?

Benadryl (diphenhydramine): Benadryl (diphenhydramine) is better than zantac. Benadryl (diphenhydramine) is an h1 blocker, zantac is not. I like Allegra more than Benadryl (diphenhydramine) because Allegra does not cause drowsiness. ...Read more

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I've been trying to get pregnant and I am currently taking Zantac (acid reflux) and Benadryl. Could these medications keep me from conceiving? Thanks!

I've been trying to get pregnant and I am currently taking Zantac (acid reflux) and Benadryl. Could these medications keep me from conceiving? Thanks!

Possibly: Ranitidine has not been known to cause any problems with fertility or pregnancy, however diphenhydramine/Benadryl and other antihistamines theoretically can affect the implantation of the egg in the womb by decreasing bloodflow to the uterus. It is still debatable, (and there aren't any good studies on the subject), but it might be good to stop taking benadryl unless you REALLY need it. ...Read more

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Was wondering if it was safe to mix ranitidine and benadryl (diphenhydramine) together and give to my one year old like that?

Was wondering if it was safe to mix ranitidine and benadryl (diphenhydramine) together and give to my one year old like that?

Mgt: They can be given as recommended by your pediatrician. They should be given separately rather than mixed in my opinion. Benadryl (diphenhydramine) is not for cold symptoms-- if your child is having an allergic reaction, please see your PCP right away. ...Read more

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Hi! I have been having hives for the past three days and I have taken benadryl, (diphenhydramine) prednisone, and ranitidine when will they go away?

Depends on cause: How long it lasts depends on what is causing it. Having said that, they are often caused by a viral infection. In this case, they should go away after a few weeks. On the other hand, it may also linger on for years ...Read more

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What is zantac (ranitidine)?

What is zantac (ranitidine)?

Antiacid stomach med: Zantac (ranitidine) is a histamine-2 (h2 blocker) which blocks acid secretion in the stomach. It can be used for esophageal reflux
(gerd) or other general hi acid states. It may be safer to use long-term than the other popular acid blockers (ppi's) e.g. Prilosec. Interestingly, since Zantac is a histamine blocker it can also be used for 'allergy' or hives. ...Read more

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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). ...Read more

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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. ...Read more

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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. ...Read more

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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. ...Read more

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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. ...Read more

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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. ...Read more

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Do antihistamines cause gout?

Do antihistamines cause gout?

No: There is a letter to the editor in a european journal reporting an association. That was in 1950. Since then nothing. To the best of my knowledge antihistamines are not associated with gout. ...Read more

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Do antihistamines cause gout?

Typically no: Antihistamines are generally not considered a group of medications that directly cause gout. However, antihistamines can cause dryness, and if that progresses to dehydration, then gout attacks can occur with a higher frequency. This would be an indirect cause. Antihistamines generally don't cause significant dehydration. Aspirin can make gout worse, as can other salicylate-containing meds. ...Read more

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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. ...Read more

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Is doxepin a type 2 antihistamine?

Is doxepin a type 2 antihistamine?

Strong antihistamine: Doxepin is an effective but sedating tricyclic antidepressant. This drug's sedating effect is significantly due to its powerful antihistamine effects. Most recently it has been marketed at lower dosages as a sleep medication. ...Read more

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Can antihistamines dry out your skin?

Can antihistamines dry out your skin?

Not likely: Antihistamines can dry up a runny nose and older antihistamines can lead to unwanted side effects of dry eyes and dry mouth. Topical antihistamines should not be used. Oral antihistamines should not dry out the skin. ...Read more

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Is antihistamines for treating eczma?

Eczema: Although not necessarily the main treatment option in eczema, the use of antihistamines to calm down the itch associated with eczema seems to help quite a bit. Remember that eczema is the itch that rashes, the more you scratch the worse it is. ...Read more

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Does Zantac (ranitidine) help nausea?

Does Zantac (ranitidine) help nausea?

Sometimes: It has limited value for nausea unless the nausea is related to gastritis or ulcer disease. ...Read more

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Antihistamine can decrease milk supply?

Yes: Anti histamines can cause a decrease in milk supply. ...Read more

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Why do some antihistamines make me drowsy?

Cross into brain: Older antihistamines, such as diphenhydramine, or chlorpheniramine, actually cross the barrier between the bloodstream and the brain. This causes many people to feel drowsy or sedated. It can make some people irritable, or even cause insomnia. For this reason, the "non-sedating" antihistamines were developed. These medications cause much less drowsiness, and are better tolerated. ...Read more

Dr. Paul Carter
648 Doctors shared insights

Antihistamine (Definition)

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


Dr. Mark Ingerman
562 Doctors shared insights

Zantac (Definition)

Zantac is a H2 receptor blocker which is a kind of ...Read more