Doctor insights on:
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
I have heard I can take a Zantac (ranitidine) or antihistamine tablet prior to drinking alcohol to stop my face from flushing red, is this true?
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
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
Was wondering if it was safe to mix ranitidine and benadryl (diphenhydramine) together and give to my one year old like that?
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
Is it bad to take an antihistamine during a cold, i.e. does suppressing mucus make the cold last longer?
No value: Antihistamines have no value in the treatment of viral illnesses. ...Read more
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
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
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
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