indication

For the topical treatment of itching associated with allergic reactions.

pharmacology

Isothipendyl, an azaphenothiazine derivative, competitively binds to histamine (H1) receptors, resulting in inhibition of the pharmacological effects of histamines. It also has some sedative, anticholinergic and antiserotoninergic effects.

mechanism of action

Isothipendyl is a selective histamine H1 antagonist and binds to the histamine H1 receptor. This blocks the action of endogenous histamine, which subsequently leads to temporary relief of the negative symptoms brought on by histamine.