Drug Name Estrace

Allopurinol is a purine analog; it is a structural isomer of hypoxanthine (a naturally occurring purine in the body) and is an inhibitor of the enzyme xanthine oxidase.[1] Xanthine oxidase is responsible for the successive oxidation of hypoxanthine and xanthine, resulting in the production of uric acid, the product of human purine metabolism.
Escitalopram (trade names Anxiset-E (India) Lexapro, Cipralex, Seroplex, Lexamil, Lexam, Entact) is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class. It is approved by the U.S. Food and Drug Administration (FDA) for the treatment of adults and children over 12 years of age with major depressive disorder and generalized anxiety disorder.

 

Azathioprine is an immunosuppressant, that is, a drug that is used to suppress the immune system. It is used to treat patients who have undergone kidney transplantation and for diseases in which activity of the immune system is important. Azathioprine is a prodrug (a precursor of a drug) which is converted in the body to its active form called mercaptopurine (Purinethol).
Ampicillin belongs to a class of antibiotics called penicillins that are used for treating bacterial infections. Other members of this class include amoxicillin (Amoxil), piperacillin (Pipracil), ticarcillin (Ticar) and several others. These antibiotics all have a similar mechanism of action. They stop bacteria from multiplying by preventing bacteria from forming the walls that surround them.