Repro Drugs Flashcards
Oestrogen action and side effects?
Endometrial proliferation
Increased blood coagulability
Breast tenderness
Thromboembolism
Breast, endometrial, ovarian cancer
Progesterone action and side effects?
Maintains pregnancy
Fluid retention
Mood changes
Weight gain
Fluid retention
Acne
Depression
Testosterone action and side effects?
Stimulate male secondary sexual characteristics
Acne
Male pattern baldness
COCP?
Prevents ovulation (primary action)
Thickens cervical mucus
POP?
Thickens cervical mucus (primary action)
Reduced cilia activity in fallopian tubes
Which CYP enzyme metabolises COCP & POP?
CYP 450
Phenytoin/carbamazepine, St John’s wort induces metabolise of drug (CYP 450 inducers)
HRT ADRs?
Oestrogen only - endometrial cancer
O & P - breast cancer
Both - ^VTE risk
Bisphosphonates
For osteoporosis
Inhibit osteoclast formation
Ulipristal Acetate (Ella One)
Selective Progesterone Receptor Modulator (SPRM)
Emergency contraception - inhibits ovulation by depressing LH surge
Levonorgestrel
Progestogen
Stops ovulation
Clomiphene
Selective Estrogen Receptor Modulator
Used for anovulation
Inhibits oestrogen negative feedback on hypothalamus
Tamoxifen
Selective Estrogen Receptor Modulator (SERM)
Antagonist in breast - breast cancer
Prevents osteoporosis in bone
Induces ovulation
Antagonist in endometrium - endometrial cancer
Mifepristone
Progesterone receptor antagonist
Termination of pregnancy