Category: 09. Endocrine Drugs
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ADRENCORTCCAL HORMONES
Adenocortical hormones control the metabolism of carbohydrate (CHO), protein, fat and water electrolytes. Adencortical hormones are classified into: Glucocorticoid – Cortisone Hydrocortisone (Cortisol) Mineralocorticoid – Aldosterone Desoxycorticosterone Sex Hormone – Estrogen Androgen Glucocorticoids The important glucorticoid secreted in man is hydrocortisone. It posseses some mineralocorticoid activity as well. Cortisone is less potent and is converted…
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Ovulation Inducing Drug
These are drugs used in the treatment of infertility due to ovulatory failure. Clomiphen It is antiestrogenic drug. It interferes with estrogen feedback inhibition at hypothalamus and anterior pitutary so enhance secretion of FSH, LH causing ovarian stimulation which finally leads to ovulation.
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Single Entity Preparation
Continuous progestrone Oral progestrone Norethindone (Norgestril) Depot IM injection of long acting progestogen. e.g. Medroxyprogestrone acetate (Depoprovera®) Subcutanous implant L – norgestril (Norplantâ) Mechanism: It makes cervical mucus thick, though & hostile and also alter endometrial wall 2. Post coital “morning after” pill Oestrogen like Diethyl stilbosterol used within 72 hrs Combined oral contraceptive pills…
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ORAL CONTRACEPTIVEs
These are drugs taken orally to prevent conception. They are available in the following forms: Combined regimen type sequential regimen type triphasic pill regimen Combined regimen: involves the administration of pills containing combination of Estrogen and Progestogen. They are administered starting 5th day of menustral cycle for 21 days. They can also be classified as…
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Female Sex Hormones And Hormonal Contraception Oestrogens
These drugs can be classified into three groups. Natural – estradiol, esterone, estriol Semisynthetic – Ethnylestradiol Synthetic: Diethylstibosterol Natural Estradiol: Estradiol is most potent, major secretory product of ovary.It is oxidized into esterone by liver; estrone is hydrated to estriol and synthesized by ovarian follicle, adrenal cortex, fetoplacental unit, and testis. Androgen and testestrone are…
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Ergometrine
It is one of the ergot alkaloids with the ability to cause contraction of the uterine smooth muscle. It causes sustained uterine contraction. It is completely absorbed after subcutaneous and intravenous administration. It is metabolized in the liver and eliminated in the urine .Liver damage enhances the toxicity of ergot alkaloid. Use: after delivery of…
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Prostaglandins
They induce labor at anytime during pregnancy but most effective at the third trimester. In female reproductive system prostaglandin E & F are found in ovaries, endometrium and menstrual fluid which is responsible for initiating and maintaining normal birth process. PGF, PGF2ά, PGE stimulate both the tone and amplitude of the uterine contraction. Adverse reaction:…
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OXYTOCICS
These are group of drugs that cause contraction of the uterus. Oxytocin Actions: 1. Oxytocin stimulates the uterus and cause physiologic type of contraction. 2. It also causes ejection of milk through contraction of the myo-epithelial cells around the alveoli of the mammary gland. Pharmacokinetics: It is inactivated orally and absorbed rapidly after intramuscular administration.…
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Biguinides
They potentiate the hypoglycemic action of insulin and sulphonyl ureas but they don’t produce clinical hypoglycemia in diabetics. Biguanides include drugs like metformin and phenformin. Mechanism: They do not stimulate the release of insulin. They increase glucose uptake in skeletal muscle, and have effects on glucose absorption and hepatic glucose production. They also enhance anaerobic…
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ORAL HYPOGLYCEMICS
These are drugs administered orally to lower blood glucose level used in mild diabetes. They are grouped as Sulphonylureas and Biguinides. Sulphonyl ureas These compounds are chemically related to sulphonamides. First generation: Tolbutamide, Chlorpropamide Second generation: Glibenclamide, Glipizide Mechanism: hypoglycemic action is due to Stimulation of insulin release from b cell, Depression of glucagon secretion,…