Ethinylestradiol / levonorgestrel

Pregnancy & gynaecology-specific. Every dose row is source-referenced; verify against institutional protocols.

Ethinylestradiol / levonorgestrelCombined hormonal contraception

Regimens checked: 2026-10-17. Each indication has its own preparation, limits and safety checks.

Ethinylestradiol / levonorgestrel: indication-specific regimens
Indication	Dose	Route	Frequency	Duration / preparation	Maximum	Monitoring / cautions
Eligible nonpregnant patient seeking contraception or PCOS cycle control after BP/VTE/migraine assessment MSFchecked	One active tablet containing ethinylestradiol 30 micrograms +levonorgestrel 150 micrograms daily for 21 days, followed by the 7 inactive tablets in the cited 28-day pack	Oral	One tablet at the same time daily, including inactive tablets; start the next pack immediately after day 28	Ongoing while eligible, with periodic BP/risk review; stop and assess new contraindications · Check the pack has 21 active +7 inactive tablets of the stated formulation. Other pill formulations and extended regimens need their own schedule If starting >5 days after menstrual bleeding begins, use backup for 7 days. This formulation is an example; PCOS guidance does not establish one universally preferred progestogen.	One scheduled tablet/day; missed-pill/vomiting instructions are a separate decision pathway, not a reason for indefinite extra dosing	Monitor BP, adherence, bleeding, new migraine aura or VTE symptoms; review interacting medicines Contraindications / cautions Migraine with aura, active/prior VTE or major thrombotic risk, uncontrolled hypertension, smoking ≥35 years, current breast cancer or severe liver disease; postpartum eligibility is time/breastfeeding dependent

Pregnancy safety

Not a pregnancy treatment; postpartum eligibility depends on VTE risk and timing

Lactation

Oestrogen may reduce milk supply; assess breastfeeding/postpartum eligibility