Gonadorelin is a synthetic decapeptide prepared using solid phase peptide synthesis. GnRH is responsible for the release of follicle stimulating hormone and leutinizing hormone from the anterior pitutitary. In the pituitary GnRH stimulates synthesis and release of FSH and LH, a process that is controlled by the frequency and amplitude of GnRH pulses, as well as the feedback of androgens and estrogens. The pulsatility of GnRH secretion has been seen in all vertebrates, and it is necessary to ensure a correct reproductive function. Thus a single hormone, GnRH, controls a complex process of follicular growth, ovulation, and corpus luteum maintenance in the female, and spermatogenesis in the male. Its short half life requires infusion pumps for its clinical use. Gonadorelin is used for the treatment of amenorrhea, delayed puberty, and infertility the administration of gonadorelin is used to simulate the physiologic release of GnRH from the hypothalamus in treatment of delayed puberty, treatment of infertility caused by hypogonadotropic hypogonadism, and induction of ovulation in those women with hypothalamic amenorrhea. This results in increased levels of pituitary gonadotropins LH and FSH, which subsequently stimulate the gonads to produce reproductive steroids.

Lypressin is synthetic analog of porcine antidiuretic hormone vasopressin. Itis a cyclic nonapeptide that differs from Arg-vasopressin by one amino acid, containing Lys at residue 8 instead of Arg. Lypressin-containing nasal spray was used to treat diabetes insipidus, but its marketing by Sandoz (Novartis) was discontinued.

Angiotensinamide is octapeptide amide of bovine angiotensin II used to increase blood pressure by vasoconstriction. Angiotensinamide is indicated for the treatment of severe hypotension unresponsive to traditional pressor agents. Angiotensinamide has a strong pressure effect, due to the increased peripheral resistance of blood vessels, especially small caliber arterioles. Under the influence of angiotensinamide, the vessels of the internal organs, skin, kidneys are particularly narrowed. Blood circulation in skeletal muscles and coronary vessels does not change significantly. The drug has no direct effect on the heart and does not cause arrhythmias in therapeutic doses. Angiotensinamide is rapidly inactivated by enzymes contained in the blood, and therefore, when administered once, it has a short-term (2–3 min) pressure effect. However, the duration of the effect can be relatively easily controlled by selecting the appropriate rate of administration of the drug solution.

Insulin Pork is Insulin isolated from pig pancreas. Insulin is a hormone secreted by the beta cells of the pancreas to help move glucose from the blood into body cells for energy. People with Type 1 diabetes lose the ability to produce insulin and must inject it. In the past, all commercially available insulin came from the pancreases of cows or pigs. Pork and beef insulins are similar to human insulin, differing only in one or a few amino acids. However, even a slight difference is enough to elicit an allergic response in some people. To overcome this problem, researchers looked for ways to make insulin that would more closely resemble human insulin.