Non sedating antihistamine tablet
Antihistamines are commonly used to treat the symptoms of allergies and reactions to bites and stings.Antihistamines genrally come as tablets, creams, ointments and eye drops to reduce conditions such as watering, itchy eyes, running, itchy nose, sneezing, swelling and irritation of the eys, and to reduce hives, nettle rash and other allergic reactions.
Histamine is released as a reaction to foreign substances (allergens), and starts a chain reaction that leads to the release of other chemicals that add to the allergic response. There are two different types of antihistamine; sedating antihistamines, which can enter the brain and cause drowsiness and non-sedating antihistamines which do not.A drug may be classified by the chemical type of the active ingredient or by the way it is used to treat a particular condition.Each drug can be classified into one or more drug classes.Antihistamines are drugs that inhibit the action of histamine in the body by blocking the receptors of histamine.There are two types of histamine receptors H1 and H2.The authors make no claims of the accuracy of the information contained herein; and these suggested doses are not a substitute for clinical judgment. nor any other party involved in the preparation of this program shall be liable for any special, consequential, or exemplary damages resulting in whole or part from any user's use of or reliance upon this material.
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When H1 receptors are stimulated by histamine it may produce allergic reactions such as itching, hay fever and rash or hives.
Antihistamines treat the symptoms of allergic reactions.
Some antihistamines are sedating and although some are classed as non-sedating antihistamines, they may still cause drowsiness in some people.
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