Non sedating antihistamines otc All adults chatrandom

Posted by / 13-Apr-2017 11:33

Non sedating antihistamines otc

Antihistamines Antihistamines are one of the most important medications for treating allergies.Antihistamines help relieve, sneezing, itching, runny nose and may help reduce congestion.

Many over-the-counter antihistamines cause drowsiness and carry warnings about mental alertness, especially while driving or operating machinery.To get a good idea of what histamine can do, let us imagine the effects of an injection of a small amount of histamine: Headache is felt as a pulsating, whole-head pain, often with a sense of pressure.Fast heart, blood pressure falls, irregular beats with alarming palpitations.Almost everyone has taken an antihistamine to treat hay fever, itching, to relieve nausea and vomiting, in tablets and syrups used to treat cough and cold symptoms, or as an aid to sleep.The popularity of antihistamines is a mute testimony to the diverse negative effects of histamine.

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There are two kinds of histamine receptors, H1 and H2.

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