TY - CHAP M1 - Book, Section TI - Contraception A1 - El-Ibiary, Shareen Y. A2 - Sutton, S. Scott PY - 2020 T2 - McGraw Hill’s NAPLEX® Review Guide, 4e AB - Contraception implies the prevention of pregnancy following sexual intercourse by inhibiting viable sperm from coming into contact with a mature ovum or by preventing a fertilized ovum from implanting successfully in the endometrium. Additional benefits of contraception include improvements in menstrual cycle regularity, prevention of sexually transmitted diseases, and management of perimenopause. Contraceptive methods are available nonprescription or by prescription. Nonprescription contraceptives include condoms, spermicides, emergency contraception, and in some states hormonal contraception is provided by pharmacists without a prescription. Prescription contraceptives are generally hormone-based. There are a variety of factors that go into method selection and include effectiveness, cost, accessibility, side effects, return to fertility rate, frequency of sexual activity, sexually transmitted infection (STI) prevention, past medical history, and concomitant medications. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accesspharmacy.mhmedical.com/content.aspx?aid=1179736181 ER -