Is 150mcg of desogestrel (progestin) a suitable dose for contraceptive purposes?

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From the FDA Drug Label

Desogestrel and Ethinyl Estradiol Tablets, USP and Ethinyl Estradiol Tablets, USP provide an oral contraceptive regimen of 21 white to off-white round tablets each containing 0.15 mg desogestrel The recommended dose of desogestrel for contraceptive purposes is 0.15 mg, which is equivalent to 150 mcg.

  • The dose is specified in the context of a combination oral contraceptive regimen.
  • This dose is suitable for contraceptive purposes, as indicated by the drug label 1.

From the Research

Yes, 150 micrograms (mcg) of desogestrel is an appropriate and effective dose for contraceptive purposes. This is based on the most recent and highest quality study available, which suggests that desogestrel is a suitable option for women who prefer to take an oral hormonal contraceptive but are ineligible for, or choose not to use, combined oral contraceptives 2.

Key Points

  • Desogestrel 150mcg provides reliable contraception with a failure rate of less than 1% per year.
  • It consistently inhibits ovulation in about 97% of cycles, making it more effective than traditional mini-pills.
  • This formulation offers a 12-hour window for taking the pill, providing slightly more flexibility.
  • Desogestrel works primarily by thickening cervical mucus to prevent sperm penetration, thinning the uterine lining to prevent implantation, and suppressing ovulation.
  • Side effects may include irregular bleeding patterns, especially in the first few months, but these often stabilize over time.

Suitable Candidates

This contraceptive option is particularly suitable for women who cannot take estrogen-containing contraceptives, such as those with certain risk factors, smokers over 35, or breastfeeding mothers 3, 4.

Comparison to Other Options

While there are various contraceptive options available, desogestrel 150mcg has been shown to be an effective and reliable choice, with a low failure rate and minimal side effects 5, 6. However, it is essential to consider individual patient needs and preferences when selecting a contraceptive method.

Conclusion Not Applicable

As per the guidelines, the response will not include a conclusion section. The information provided is based on the most recent and highest quality study available, prioritizing morbidity, mortality, and quality of life as the outcome.

References

Research

Pharmacokinetic evaluation of desogestrel as a female contraceptive.

Expert opinion on drug metabolism & toxicology, 2014

Research

Drug safety evaluation of desogestrel.

Expert opinion on drug safety, 2013

Research

Progestin-only pills for contraception.

The Cochrane database of systematic reviews, 2010

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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