Each active blue tablet contains 0.250 mg of norgestimate and 0.035 mg of ethinyl estradiol. Inactive ingredients include carnauba wax, croscarmellose sodium, FD & C Blue No. 2 Aluminum Lake, hypromellose, lactose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80, purified water, and titanium dioxide.
Each dark green placebo tablet containing only inert ingredients, as follows: FD & C Blue No. 2 Aluminum Lake, ferric oxide, lactose, magnesium stearate, polyethylene glycol, pregelatinized corn starch, purified water, polyvinyl alcohol, talc, and titanium dioxide.

ORTHO TRI-CYCLEN
Each active white tablet contains 0.180 mg of norgestimate and 0.035 mg of ethinyl estradiol. Inactive ingredients include carnauba wax, croscarmellose sodium, hypromellose, lactose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, purified water, and titanium dioxide.
Each active light blue tablet contains 0.215 mg of norgestimate and 0.035 mg of ethinyl estradiol. Inactive ingredients include carnauba wax, croscarmellose sodium, FD & C Blue No. 2 Aluminum Lake, hypromellose, lactose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, purified water, and titanium dioxide.
Each active blue tablet contains 0.250 mg of norgestimate and 0.035 mg of ethinyl estradiol. Inactive ingredients include carnauba wax, croscarmellose sodium, FD & C Blue No. 2 Aluminum Lake, hypromellose, lactose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80, purified water, and titanium dioxide.
Each dark green placebo tablet contains only inert ingredients, as follows: FD & C Blue No. 2 Aluminum Lake, ferric oxide, lactose, magnesium stearate, polyethylene glycol, pregelatinized corn starch, purified water, polyvinyl alcohol, talc, and titanium dioxide.

12 CLINICAL PHARMACOLOGY
12.1 Mechanism of ActionOral Contraception

COCs lower the risk of becoming pregnant primarily by suppressing ovulation. Other possible mechanisms may include cervical mucus changes that inhibit sperm penetration and endometrial changes that reduce the likelihood of implantation.

Acne
Acne is a skin condition with a multifactorial etiology, including androgen stimulation of sebum production. While the combination of ethinyl estradiol and norgestimate increases sex hormone-binding globulin (SHBG) and decreases free testosterone, the relationship between these changes and a decrease in the severity of facial acne in otherwise healthy women with this skin condition has not been established

12.2 PharmacodynamicsNo specific pharmacodynamic studies were conducted with ORTHO-CYCLEN or ORTHO TRI-CYCLEN.
12.3 Pharmacokinetics
Absorption

Norgestimate (NGM) and EE are rapidly absorbed following oral administration. NGM is rapidly and completely metabolized by first pass (intestinal and/or hepatic) mechanisms to norelgestromin (NGMN) and norgestrel (NG), which are the major active metabolites of norgestimate.

Peak serum concentrations of NGMN and EE are generally reached by 2 hours after administration of ORTHO-CYCLEN or ORTHO TRI-CYCLEN. Accumulation following mul