Comparative Pharmacology
Head-to-head clinical analysis: BLISOVI FE 1 20 versus ORTHO NOVUM 7 14 21.
Peer-Reviewed Evidence
Head-to-head clinical analysis: BLISOVI FE 1 20 versus ORTHO NOVUM 7 14 21.
BLISOVI FE 1/20 vs ORTHO-NOVUM 7/14-21
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Combination of ethinyl estradiol, an estrogen, and desogestrel, a progestin, which inhibit gonadotropin release (FSH and LH) from the pituitary, suppressing ovulation and altering cervical mucus and endometrial lining to reduce likelihood of fertilization and implantation.
Combination estrogen-progestin contraceptive: suppresses gonadotropin release, inhibits ovulation, thickens cervical mucus, alters endometrial receptivity.
One tablet orally once daily for 21 days, followed by 7 days of placebo (iron-containing) tablets. Each active tablet contains 0.1 mg levonorgestrel and 20 mcg ethinyl estradiol.
One tablet containing 0.5 mg norethindrone/0.035 mg ethinyl estradiol (white tablets) on days 1-14, then one tablet containing 1 mg norethindrone/0.035 mg ethinyl estradiol (peach tablets) on days 15-21, then no tablets for 7 days; repeated cycles.
None Documented
None Documented
Ethinyl estradiol: ~12-14 hours; norethindrone: ~7-8 hours; both allow once-daily dosing with steady-state reached within 7-10 days.
Norethindrone: 10-12 hours (terminal), ethinyl estradiol: 13-27 hours (terminal); clinical context: steady state achieved within 5-7 days
Renal: ~50-60% as metabolites; fecal: ~40-50% via biliary elimination; less than 10% unchanged in urine.
Renal: ~40% as glucuronide and sulfate conjugates; Fecal: ~20%; Biliary: minor
Category C
Category C
Oral Contraceptive
Oral Contraceptive