levocetirizine dihydrochloride cas 130018-87-0 anti histaminic pharmaceutical drugs

quick detail

description

• levocetirizine (as levocetirizine dihydrochloride) is a third-generation,[1] non-sedating antihistamine, developed from the second-generation antihistamine cetirizine. chemically, levocetirizine is the active enantiomer of cetirizine.
• it is the r-enantiomer of the cetirizine.
• levocetirizine is an inverse agonist that decreases activity at histamine h1 receptors. this in turn prevents the release of other allergy chemicals and increased blood supply to the area, and provides relief from the typical symptoms of hay fever.
• it does not prevent the actual release of histamine from mast cells.

uses

levocetirizine is an antihistamine used to relieve allergy symptoms such as wateryeyes, runny nose, itching eyes/nose, sneezing, hives, and itching.

it works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction.

dosage

levocetirizine comes as a tablet and liquid to take by mouth. it's typically taken once a day in the evening with or without food.

your dosage will be based on your age, medical condition, and response to treatment.

follow the instructions on your prescription label carefully when taking this medication. don't take more or less than your doctor prescribes.

common side effects of levocetirizine

you should tell your doctor if any of the following side effects become severe or don't go away:

• sleepiness or tiredness
• weakness
• sore throat
• stuffy nose
• cough
• dry mouth
• vomiting
• diarrhea or constipation

levocetirizine and weight gain

weight gain is not a common side effect of levocetirizine. but some patients do report it.

you can prevent weight gain by following a healthy diet and exercise plan.