Ractopamine is a drug used as a feed additive to promote leanness in animals raised for their meat. Pharmacologically, it is a beta-adrenergic agonist. It is the active ingredient in products known as Paylean for swine and Optaflexx for cattle, developed by Elanco Animal Health, a division of Eli Lilly and Company, for use in […]

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

It is the main metabolite of methadone.

Dihydrotestosterone (commonly abbreviated to DHT), or 5α-dihydrotestosterone (5α-DHT), also known as androstanolone (5α-androstan-17β-ol-3-one) as well as 17β-hydroxy-5α-androstan-3-one, is a sex steroid and androgen hormone. The enzyme 5α-reductase synthesizes DHT in the prostate, testes, hair follicles, and adrenal glands. This enzyme reduces the 4,5 double-bond of the hormone testosterone.

urinary pregnanediol-3-glucuronide (PdG), a progesterone metabolite, using commercial reagents and examined the changes in the urinary concentration of PdG in a female giant pandaPregnanediol is an inactive product that forms when the body breaks down the hormone progesterone. A test can be done to measure the amount of pregnanediol in urine. The urine test offers […]

Digoxin is a beta blocker drug originally derived from the foxglove plant, Digitalis lanata. Digoxin is used primarily to improve the pumping ability of the heart in congestive heart failure (CHF), and treat problems such as high blood pressure. It is also used to help normalize some dysrhythmias (abnormal types of heartbeat).

Progesterone also known as P4 (pregn-4-ene-3,20-dione) is a C-21 steroid hormone involved in the female menstrual cycle, pregnancy (supports gestation) and embryogenesis of humans and other species. Progesterone belongs to a class of hormones called progestogens, and is the major naturally occurring human progestogen.

Oxyphenbutazone is a non-steroidal anti-inflammatory drug (NSAID). It is a metabolite of phenylbutazone.

Phenobarbital (INN) is a long-acting barbiturate and the most widely used anticonvulsant worldwide, and the oldest still commonly used. It also has sedative and hypnotic properties, but as with other barbiturates, it has been superseded by the benzodiazepines for these indications. The World Health Organization recommends its use as first-line for partial and generalized tonic–clonic […]

Dehydroepiandros-terone sulfate (DHEAS) is produced by the adrenals andgonads. As a result, the determination of the level of DHEA-S in serum isimportant in the evaluation of the functional state of these glands. DHEAS is aprecursor of testosterone and estrone. Besides the adrenals in females, theovaries have been shown to be an important source of DHEAS. […]