Comment ce médicament agit-il ? Quels sont ses effets ? L'hydroxyzine appartient à la classe des médicaments appelés antihistaminiques. Elle s'utilise pour le traitement d'une démangeaison et d'autres symptômes causés par des troubles d'origine allergique. C 21 H 27 CIN 2 0 2 •2HCI M.W. 447.83. Hydroxyzine hydrochloride occurs as a white, odorless powder which is very soluble in water. Hydroxyzine Hydrochloride Tablets USP, 10 mg, 25 mg and 50 mg contain the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, croscarmellose sodium, FD&C Yellow No. 6, hypromellose. Hydroxyzine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of itching, or hives on the skin. Hydroxyzine, sold under the brand names Atarax among others, is a medication of the antihistamine type. It is used in the treatment of itchiness, anxiety, and nausea, including that due to motion sickness. It is used either by mouth or injection into a muscle. Hydroxyzine has its maximal effect about 30 to 60 minutes after it is taken. Its effects last for 4 to 6 hours. The recommended dose for treating itching (pruritus) is 25 mg given 3 or 4 times daily by mouth or by intramuscular injection. How to use Hydroxyzine Hcl. Take this medication by mouth with or without food as directed by your doctor, usually three or four times daily. If you are using the liquid form of this medication. How to use Hydroxyzine Pamoate. Take this medication by mouth with or without food as directed by your doctor, usually three or four times daily. The dosage is based on your age, medical condition. L'hydroxyzine agit en bloquant l'action d'une substance chimique produite par le corps appelée histamine. L'histamine est responsable de nombreux symptômes qui apparaissent lorsqu'une réaction allergique survient. L'effet calmant de l'hydroxyzine provient de son effet sédatif. Hydroxyzine pamoate is a light yellow, practically odorless powder practically insoluble in water and methanol and freely soluble in dimethylformamide. Exporters Of Hydroxyzine Hcl, Haldoldecanoate, Ethanol, Neurolax, Aterax, Atranine, Halomonth, shreeji pharma, vadodara, gujarat, india.