We can supply promethazine hydrochloride API and intermediate products. Promethazine Hydrochloride API is a white or off-white powder with a content of ≥99.0%. Our professional staff can provide considerate pre-sales and after-sales services to our customers in terms of product quality, properties and usage.
Promethazine hydrochloride API can be used to produce promethazine hydrochloride preparations. Promethazine hydrochloride preparation is a common cough suppressant and an antihistamine. It competitively blocks the histamine H1 receptor, resists histamine-induced capillary dilation and reduces its permeability. It therefore calms coughs caused by airway irritation.