Progestin-Only Pill

hormone · nervous · endocrine · reproductive · musculoskeletal · Oral

Progestin-Only Pill, a hormone. Class entry — usually norethindrone 0.35 mg or drospirenone 4 mg. Mechanism: cervical mucus thickening +… Oral half-life 9 h.

Class entry — usually norethindrone 0.35 mg or drospirenone 4 mg. Mechanism: cervical mucus thickening + endometrial atrophy; ovulation suppression less consistent than COC. Used when estrogen is contraindicated (lactation, VTE history, migraine with aura).