Erythromycin is a macrolide antibiotic of bacteriostatic action. In high concentrations and relatively high-sensitivity microorganisms may have a bactericidal effect.

Naltrexone - complex treatment of alcohol dependence. It is also attributed to the prevention of the pharmacological effects of exogenous opioids and the maintenance of a non-opioid state in patients with opioid dependence.

Prometrium is used as part of hormone replacement therapy for women who underwent menopause (menopause) and did not have a hysterectomy (surgical removal of the uterus). Prometrium is also used to cause menstruation for women of childbearing age.