Search
Seasonique (LoSeasonique)
Extended cycle oral contraceptive. New for 2006. (91 day menstrual cycle)
Indications:
- contraception
- LoSeasonique effective in obese women [2]
Dosage:
- 1 tab (Seasonique or LoSeasonique) QD for 84 days
- low dose (10 ug) of ethinyl estradiol for 7 days
- restart cycle
Tabs:
- Seasonique: 150 ug levonorgestrel & 30 ug ethinyl estradiol
- LoSeasonique: 100 ug levonorgestrel & 20 ug ethinyl estradiol
Adverse effects:
-> may be more spotting between menstrual periods (may be less bleeding relative to Seasonale)
Mechanism of action:
1) allows women to cycle every 91 days (seasonally)
2) contraceptive suppresses endometrial thickening, thus monthly bleeding unnecessary to slough endometrium
Interactions
drug adverse effects of estrogens
General
monophasic oral contraceptive
ethinyl estradiol/levonorgestrel (Jolessa, Lessina, Chateal EQ)
Database Correlations
PUBCHEM cid=24706
References
- Prescriber's Letter 13(8): 2006
Hormonal Contraception
to Existing Drugs
Detail-Document#: 220809
(subscription needed) http://www.prescribersletter.com
- LoSWesthoff CL et al.
Body weight does not impact pregnancy rates during use of
a low-dose extended-regimen 91-day oral contraceptive.
Contraception 2012 Mar; 85:235.
PMID: 22067763
Components
ethinyl estradiol
levonorgestrel (Norplant)