Epiandrosterone, or 3β-androsterone, also known as 3β-hydroxy-5α-androstan-17-one or 5α-androstan-3β-ol-17-one, is a steroid hormone with weak androgenic activity. It is a natural metabolite of dehydroepiandrosterone (DHEA) via the 5α-reductase enzyme. It was first isolated in 1931, by Adolf Friedrich Johann Butenandt and Kurt Tscherning. They distilled over 17,000 litres of male urine, from which they got […]

MDMA (3,4-Methylenedioxymethamphetamine) – colloquially known as ecstasy, often abbreviated “E” or “X” – is an entactogenic drug of the phenethylamine and amphetamine class of drugs. MDMA can induce euphoria, a sense of intimacy with others, and diminished anxiety. Many studies, particularly in the fields of psychology and cognitive therapy, have suggested that MDMA has therapeutic […]

Phencyclidine, alsoknown as angel dust and myriad other street names, is a recreational,dissociative drug formerly used as an anesthetic agent, exhibitinghallucinogenic and neurotoxic effects. Developed in Germany in 1926, it wasfirst patented in 1952 by the Parke-Davis pharmaceutical company and marketedunder the brand name Sernyl. In chemical structure, PCP is anarylcyclohexylamine derivative, and, in pharmacology, […]

Tobramycin is an aminoglycoside antibiotic used to treat infections caused by many different bacteria. Tobramycin is usually administered by intravenous infusion, intramuscular injection, or inhalation.

Polymyxin B is an antibiotic primarily used for resistant Gram-negative infections. It is derived from the bacterium Bacillus polymyxa. Polymyxin B is a mixture of two closely related compounds, polymyxin B1 and polymyxin B2. It has a bactericidal action against almost all Gram-negative bacilli except the Proteus group. Polymyxins bind to the cell membrane and […]

Sulfamethoxypyridazine, has been introduced into clinical usage which differs in several respects from currently available preparations of this group of drugs.1 The new agent is promptly absorbed after oral administration, and the free form of the drug is very slowly excreted in the urine. This results in long-sustained high plasma concentrations of free drug with […]

Sulfabenzamide is an antibacterial/antimicrobial. Often used in conjunction with sulfathiazole and sulfacetamide (trade name – Sultrin) as a topical, intravaginal antibacterial preparation.

Estriolis a hydroxylated metabolite of ESTRADIOL or ESTRONE that has a hydroxylgroup at C3-beta, 16-alpha, and 17-beta position. Estriol is the mainestrogen in the blood and urine of pregnant females. During pregnancy, largeamount of estriol is produced by the placenta. Serum estriol determinationsreflect the status of the fetus and are used to evaluate fetal distress […]

17 beta Estradiol is a steriod hormone that is produced in the ovary, placenta, testis, and possibly the adrenal cortex.