Development of a new long acting contraceptive for women.
D000328:Adult; D000818:Animals; D001702:Biopharmaceutics; D003270:Contraceptive Agents; D003692:Delayed-Action Preparations; D004058:Diffusion; D005260:Female; D006801:Humans; D009640:Norethindrone / Q000008:administration & dosage* / Q000009:adverse effects; D009644:Norgestrel / Q000008:administration & dosage; D011374:Progesterone / Q000008:administration & dosage; D051381:Rats; D012826:Silicone Elastomers
D003270:Contraceptive Agents; D003692:Delayed-Action Preparations; D012826:Silicone Elastomers; D009644:Norgestrel; D011374:Progesterone; D009640:Norethindrone