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The transdermal contraceptive patch: a new approach to hormonal contraception
1Department of Obstetrics and Gynecology, Baystate Medical Center, Springfield, Massachusetts, USA.
International Journal of Fertility and Women'S Medicine
|May 7, 2002
Summary
The transdermal contraceptive patch offers reliable birth control, similar to oral pills, with high adherence rates. It is effective for most women, though efficacy may decrease for those over 90 kg.
Area of Science:
- Reproductive Health
- Pharmacology
- Contraception
Background:
- Oral contraceptives are a common form of birth control.
- Transdermal drug delivery systems offer an alternative method for hormone administration.
Purpose of the Study:
- To evaluate the efficacy and safety of a transdermal contraceptive patch.
- To compare the performance of the patch to oral contraceptives.
Main Methods:
- The study assessed pregnancy rates, adherence, and side effects associated with the transdermal patch.
- Pharmacokinetic data informed the understanding of steroid level maintenance.
Main Results:
- The patch demonstrated efficacy comparable to oral contraceptives, with failure rates of 0.70% (perfect use) and 0.88% (typical use).
- Adherence was high (nearly 90%), and side effects were similar to oral contraceptives, except for transient breast tenderness.
- Lower efficacy was noted in women weighing over 90 kg. Detachment rates were 3.8% and unaffected by environmental factors.
Conclusions:
- The transdermal contraceptive patch is an effective and well-adhered-to alternative to oral contraceptives.
- It offers comparable cycle control and a similar side effect profile, with a notable advantage in dosing adherence.