These medicines are called Antihistamines.
Yes!
true
Yes as it can cause the body to produce more Histamine.
they block acid production of the stomach reducing the acidity
No it causes them to dilate (vasodilation)
Histamine also causes acid indigestion, diarrhea, flushing, heart pounding, headaches, and can even cause the blood pressure to drop suddenly.
histamine
A histamine antagonist is an agent that serves to inhibit the release or action of histamine, also known as an antihistamine. These drugs block histamine receptors in the brain that slightly depress the central nervous system. A common antihistamine is diphenhydramine, this drug is found in Benadryl and in most common OTC sleep drugs.
Karl M. Block was born in 1886.
Karl M. Block died in 1958.
Morphine can cause the release of histamine which can cause the skin & the whites of the eyes to redden. Taking an antihistamine 30-60 minutes before using morphine can help reduce the symptoms of histamine, but, some antihistamines can cause drowsiness. This, combined with the effects of morphine could cause excessive sedation.