Women's Health Drugs Flashcards
Hormonal Contraceptives
Progestin+/- estrogen Mechanism: supress LH/FSH secretion, preventing follicular development and ovulation Side effects: -bleeding (progestin-only>combo) -weight gain, acne, hirsutism (if androgenic progestin) -Urethral dilation -bactiuria -amenorrhea Less frequent: -MI -stroke -jaundice -depression Benefits: -reduce ovarian cysts, ovarian/endometrial cancer, breast disease -reduce ectopic pregnancy -reduce menstrual symptoms -reduce acne/hirsutism (if not androgenic progestin)
Non-Oral contraceptives
- Transdermal patch (ortho evra)- combo, monthly patches
- Vaginal Ring (NuvaRing)- insert ring 3/4 weeks in month instead of taking pills
- Subdermal implant (Implanon, Nexplanon)- inserted to upper arm, secretes progestins for 3yr
- Injectable (Depo Provera)- inject progestin every 3 months. Increased risk of weight gain, osteoporosis, menstrual irregularities, depression
- IUD
- Sterilization
Mifepristone
“Morning after” pill, ie Plan B
Mechanism: progesterone receptor antagonist causing corpus luteum degradation
Clomiphene
Class: SERM
Mechanism: partial estrogen receptor agonist, inhibiting normal estrogen negative feedback, causing increased gonadotropin
Use: stimulate ovulation for pregnancy in oligomenorrhea, amenorrhea
Side effects: hot flashes, nausea/vomiting, weight gain, depression, fatigue- basically menstruation
Leuprolide
Class: GnRH agonist
Mechanism:
Use: 2nd line after clomiphene for ovarian stimulation, like in IVF
Ceftriaxone
Class: 3rd gen cephalosporin
Mechanism: ß-lactam, inhibit wall biosynthesis (bactericidal)
Use: gonorrhea + chlamydia, in conjunction with azithromycin/doxycycline
Azithromycin
Class: macrolide
Mechanism: Inhibit 50S ribosome subunit blocking protein synthesis (bacteriostatic)
Use: chlamydia/gonorrhea as secondary agent to ceftriaxone
Doxycycline
Class: tetracycline analog
Mechanism: Inhibit protein synthesis targets 30S subunit (bacteriostatic)
Use: gonorrhea/chlamydia secondary to ceftriaxone
Metronidazole
Class: nitroimidazole
Mechanism: activation by PFOR forms toxic nitro radical, damages DNA causing apoptosis
Use: trichomoniasis (Protozoa + anaerobes)
Side effects:
-nausea/headache/dry mouth
-vomiting/diarrhea/insomnia/vertigo/dysuria
-rare: neutropenia, pancreatitis, CNS toxicity
Contraindications: CNS disorder, alcohol, pregnancy, nursing
Acyclovir, valacyclovir, famcyclovir
Class: antivirals
MEchanism: guanosine analogs competitively inhibit viral DNA pol and cause chain termination
Use: genital herpes
Side effects: GI