Is azithromycin a biological agent?

It is not a biological agent.

Azithromycin generally refers to histamine.

Cissume (azithromycin dry suspension-oral dosage form for children, azithromycin tablet-oral dosage form for adults, azithromycin for injection) is the first patented azithromycin product in the world, produced in Pfizer.

Azithromycin is a second-generation macrolide drug, which is mainly used to treat respiratory and reproductive tract infections. It can treat respiratory tract infection and genital chlamydia trachomatis infection in children and adults caused by various pathogens, and is recommended as the first-line treatment drug for the above infections by medical guidelines in many countries and regions.