The researchers affirm that there were no differences in efficacy among the three treatment groups; moreover, within the limits set by the study, the single dose of levonorgestrel
was at least as effective as the split dose.
The original morning-after pill, Levonorgestrel
, has been 95 per cent effective if taken within 24 hours - but the efficacy falls to 58 per cent after three days.
Both groups were satisfied with their treatment, although 42% of the women assigned to the group treated with levonorgestrel
eventually had a hysterectomy.
1) The results of the study also suggest, although inconclusively, that women who use third-generation pills (those containing the progestogen gestodene or desogestrel) are less likely to have a heart attack than those using pills containing the second-generation drug levonorgestrel
, and that the use of third-generation pills is not associated with the risk of heart attack.
Food and Drug Administration (FDA) for its Abbreviated New Drug Application (ANDA) for Levonorgestrel
and Ethinyl Estradiol Tablets USP, 0.
SAN DIEGO - Women who were randomized to an investigational low-dose ethinyl estradiol and levonorgestrel
contraceptive patch had similar contraceptive efficacy, cycle control, and safety results, compared with those who were randomized to a standard oral contraceptive containing 20 mg ethinyl estradiol and 0.
The length of the second cycle after taking levonorgestrel
returned to normal.
taken 12 hours apart within 72 hours of unprotected intercourse.
Food and Drug Administration (FDA) has approved its Abbreviated New Drug Application (ANDA) for Levonorgestrel
and Ethinyl Estradiol Tablets, USP (0.
The labels will state that some of the studies found a threefold increased risk in VTEs associated with drospirenone-containing OCs, compared with those containing levonorgestrel
or another progestin, while others found no increased risk, according to the FDA statement.
MONTREAL -- Contrary to its effect with other progesterone-only contraceptives, mifepristone increases breakthrough bleeding in patients using the levonorgestrel
intrauterine system, according to a new study.
Oral contraceptives containing the newer progestogen types desogestrel, drospirenone, and gestodene have been associated with twice the risk of venous thromboembolism as those containing levonorgestrel
, an older agent.