Catapult Pharmacology
Progestogens
Progestogens are primarily used for contraception but can also be used to support pregnancy depending on dose and clinical scenario. Progestogens mediate their contraceptive effects by inducing a thinned endometrium and thick cervical mucus. Progestins do suppress ovulation but not completely. Progestin-only contraceptives are not as effective as combination (estrogen and progestin pills).
Class Drugs
Desogestrel
Dienogest
Drospirenone
Etonogestrel
Levonorgestrel
Medroxyprogesterone
Norelgestromin
Norethindrone
Norgestimate
Norgestrel
Progesterone
Class Mechanism of Action
Interacts with progesterone receptors to mediate effects
Progestogens stimulate secretory endometrium in high doses to promote implantation of embryo and maintenance of pregnancy
In contraception, progestogens increase cervical mucus viscosity, promote endometrial atrophy, suppress endometrial proliferation, and suppresses release of FSH & LH from the pituitary.
In hormone replacement, progestogens suppress endometrial hyperplasia that would occur with unopposed estrogen administration.
Class Applications
Contraception
Hormone Replacement
Class Adverse Effects
Headache
Depression
Weight gain
Acne
Drug Table
| Drug Name | Application | Comments | Image |
|---|---|---|---|
| Desogestrel | "Dez" "Jester" | ||
| Dienogest | "Dino" "Jester" | ||
| Drospirenone | "Drops" "Renowned" | ||
| Etonogestrel | "Entone" "Jester" | ||
| Levonorgestrel | Emergency contraception | "Lever" "Jester" | |
| Medroxyprogesterone | "Meds" "Rocks" "Pro" "Jester" | ||
| Norelgestromin | "North" "Jester" "Ramen" | ||
| Norethindrone | "North" "Ether" "Drone" | ||
| Norgestimate | "North" "Estimate" | ||
| Norgestrel | "North" "Jester" | ||
| Progesterone | "Pro" "Jester" "One" |