L-histidine hydrochloride, izwi kandi nka Histidine HCl, ni hydrochloride ya aside amine L-histidine.Bikunze gukoreshwa nkibiryo byokurya cyangwa nkibikoresho fatizo bya farumasi ninyongeramusaruro.L-histidine ni aside amine yingenzi, bivuze ko idashobora guhuzwa numubiri kandi igomba kuboneka mumirire cyangwa inyongera.