Mepyramine, also known as pyrilamine, is a first generation antihistamine, targeting the H1 receptor. However, it rapidly permeates the brain often causing drowsiness. It also has anticholinergic properties. It is used in over-the-counter combination products to treat the common cold and menstrual symptoms. It is also the active ingredient of the topical antihistamine creams Anthisan and Neoantergan, sold for the treatment of insect bites, stings, and nettle rash.

CAS：59-33-6
中文别名：N-[(4-甲氧苯基)甲基]-N-(2-吡啶基)-N`,N`-二甲基-乙二胺马来酸盐;N-[(4-甲氧苯基)甲基]-N-(2-吡啶基)-N’,N’-二甲基-乙二胺马来酸盐;顺丁烯二酸吡呐明;马来酸美吡拉敏;
英文别名：PYRILAMINE MALEATE;
分子式：C21H27N3O5
分子量：401.456
精确质量：401.195
Psa：103.2
Logp：2.3702

UNII：R35D29L3ZA

外观与性状：白色结晶粉末
沸点：423.8ºC at 760 mmHg
熔点：100-101ºC
闪点：210.1ºC
稳定性：Stability Combustible. Incompatible with strong oxidizing agents.
储存条件：2-8ºC

RTECS号：UT1225000
安全说明：S26; S36/37
WGK Germany：3
危险类别码：R22; R36/37/38
海关编码：2933399090
危险品标志：Xn

用途
生化研究。药品标准。抗组织胺药。