Comments Off on Promethazine powder white or pale yellow antihistamine
Characteristics of the substance Promethazine
Phenothiazine derivative. Crystalline powder of white or delicate yellow colour, odourless. Slowly oxidizes in the air, gaining a blue colour. Very easily soluble in water, well soluble in alcohol.
Pharmacology
Pharmacological action – antiallergic, mesoanesthetic, antihistamine, antipruritic, anti-emetic, sedative.
Promethazine dosage competitively blocks H1-histamine receptors, has antiexudative, anti-a...
Recent Comments