a. Chemical methods of contraception are used alone or with other barriers.
b. Types: There are nonoxynol and octoxynol forms; jellies, creams, foams, suppositories, tablets, and soluble films kill sperm.
c. Effectiveness depends on correct use. Perfect use has a 3% failure rate, typical use a 36% failure rate.
(1) Films and suppositories should be inserted into the vagina about 15 minutes before intercourse so they may dissolve.
(2) They should be inserted deeply into the vagina.
(3) Spermicide should be reapplied for each episode of intercourse.
(4) Spermicide should be left in place for 6 to 8 hours after intercourse.
(5) Users should not douche after intercourse.
(6) Spennicides should be stored in a cool, dry place.
(1) Sold over the counter
(3) Easy to use
(4) Can also be used as a lubricant with other barriers
(5) May help prevent sexually transmitted diseases
(1) Irritation in either partner
(2) May not prevent HIV transmission because of irritation
(3) Needs to be used after every act of intercourse