RT Book, Section A1 El-Ibiary, Shareen Y. A2 Sutton, S. Scott SR Print(0) ID 1179736181 T1 Contraception T2 McGraw Hill’s NAPLEX® Review Guide, 4e YR 2020 FD 2020 PB McGraw-Hill Education PP New York, NY SN 9781264258062 LK accesspharmacy.mhmedical.com/content.aspx?aid=1179736181 RD 2024/04/24 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.