Doctor insights on:
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
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 moreSee 1 more doctor answer
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
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 moreSee 1 more doctor answer
Yes you scratch less: Antihistamines are one of the important medications that we use for eczema or atopic dermatitis. The condition starts with itching, which leads to scratching, which causes a rash to develop, and then there is more itching and a vicious cycle ensues. Antihistamines are used to decrease the itching. Sedating antihistamines can be used at night to help decrease scratching while asleep. ...Read moreSee 1 more doctor answer