Triprolidine hydrochloride

Химические свойства

TRIPROLIDINE HYDROCHLORIDE is a white, crystalline powder.

Использование

TRIPROLIDINE HYDROCHLORIDE is used as bulk pharmaceutical (antihistaminic). Product Data Sheet

Определение

TRIPROLIDINE HYDROCHLORIDE is a hydrate that is the monohydrate form of triprolidine hydrochloride. A sedating antihistamine, it is used for the symptomatic relief of uticaria, rhinitis, and various pruritic skin disorders.

Общее описание

Triprolidine hydrochloride,(E)-2-[3-(1-pyrrolidinyl)-1-p-tolylpropenyl]pyridine monohydrochloridemonohydrate (Actidil), is a white crystalline powder with a slight, but unpleasant, odor. It is soluble inwater and in alcohol, and its solutions are alkaline to litmus.
The antihistaminic activity is confined mainly to the geometricisomer in which the pyrrolidinomethyl group is transto the 2-pyridyl group. Pharmacological studies confirm thehigh activity of triprolidine and the superiority of (E) overcorresponding (Z) isomers as H1-antihistamines. At guineapig ileum sites, the affinity of triprolidine for H-receptorswas more than 1,000 times the affinity of its (Z) diasteromer.The relative potency of triprolidine is of the same orderas that of dexchlorpheniramine. The peak effect occursabout 3.5 hours after oral administration, and the duration ofeffect is about 12 hours.

Реакции воздуха и воды

Water soluble.

Профиль реактивности

Triprolidine hydrochloride discolors on exposure to light.

Угроза здоровью

SYMPTOMS: Symptoms of exposure to Triprolidine hydrochloride may include depression to stimulation of the central nervous system, dry mouth, fixed dilated pupils, flushing, hallucinations, convulsions, urinary retention, cardiac arrhythmias and coma. Other symptoms may include excitability, drowsiness, nervousness, dizziness, high fever and sleeplessness. It can also cause sedation. It may also cause local anesthesia, dryness of the throat and nose and abdominal pain with vomiting or diarrhea.

Пожароопасность

Flash point data for Triprolidine hydrochloride are not available; however, Triprolidine hydrochloride is probably combustible.

Биологическая активность

Potent H 1 receptor antagonist.