Doctor insights on:
Natural Anti Histamines
Whats the best cure for allergic rhinitis? Aside from anti histamines that really makes me drowsy. Is there any natural way? Something like herbal?
Avoid allergen: If you can find out what you are allergic to (e.g. Animals, dust, grass) you can try to avoid and take local control measures. If not, you might try saline irrigations and then follow by an over the counter trial of local steroids such as flonase. Side effects can include nasal bleeding and dryness. Best to find out the allergies and see if there are specific treatments. ...Read moreSee 1 more doctor answer
Histamine is an organic nitrogen compound involved in local immune responses as well as regulating physiological function in the gut and acting as a neurotransmitter. Histamine triggers the inflammatory response. As part of an immune response to foreign pathogens, histamine is produced by basophils and by mast cells found ...Read more
Diphenhydramine: 300 mg/day from all sources, 50 mg in one dose q 6 hours, it is the most widely used OTC. Other OTC 2nd generation antihistamines as cetirizine , loratadine or fexofenadine have different dosing but can be taken once a day, and develop tolerance as with diphenhydramine with prolonged usage ...Read more
Anti-histamines: They can be h1-receptor antagonists such as Benadryl (diphenhydramine) or periactin or loratadine. Or, h2-receptor antagonists such as tagamet or ranitidine. Or, h3/h4 receptor antagonists (experimental) such as thioperamide. Or, atypical antihistamines such as catechin. Or, others such as cromolyn. ...Read more
Depends: Most itchy skin rash are not mediated by histamine and thus whether it would respond to histamine or not would depend on the mechanism causing it. There is no harm in trying antihistamine even up to 4x the usual dose. The sedating ones tend to work better on itching due to sedating effect. Consult your doctor if antihistamine does not work. ...Read more
Yes: Histamine's action on the brain's histamine receptors keeps you alert. When the antihistamine enters the brain , it counteracts this stimulatory effect thereby making you drowsy. Since the 2nd generation antihistamines do not enter the brain , they are not expected to cause drowsiness. ...Read moreSee 1 more doctor answer
What will happen to the antihistamine , if histamine is not even presentreaction what will my body do with that antihistamine?
Say again: Try again, Joe. What is your question? ...Read more
No: Antihistamines are safer medications, especially the newer ones, you can take it as long as needed. Generally they are safe. ...Read more
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