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Long-acting injectable hormonal dosage forms for contraception.

Linfeng Wu1, Dileep R Janagam, Timothy D Mandrell

  • 1Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, Tennessee, 38163, USA.

Pharmaceutical Research
|April 23, 2015
PubMed
Summary
This summary is machine-generated.

Developing long-acting injectable contraceptives remains challenging, with few products available despite decades of research. This review explores strategies for long-acting reversible contraceptives to meet clinical needs.

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Area of Science:

  • Reproductive Health
  • Pharmaceutical Sciences
  • Drug Delivery Systems

Background:

  • Decades of research have focused on developing long-acting injectable hormonal contraceptives.
  • Few long-acting injectable contraceptives have successfully reached the market or clinical trials.
  • There is a significant clinical need for injectable long-acting reversible contraceptives offering protection beyond three months per dose.

Purpose of the Study:

  • To review past strategies for developing injectable hormonal contraceptive dosages.
  • To discuss potential solutions for challenges encountered in developing long-acting injectable contraceptives.

Main Methods:

  • Review of existing literature on injectable contraceptive dosage forms.
  • Analysis of strategies including drug microcrystal suspensions, drug-loaded microspheres, and in situ forming depots.
  • Discussion of challenges and potential solutions in long-term contraceptive development.

Main Results:

  • Various formulation strategies have been explored for long-acting injectable contraceptives.
  • Significant hurdles remain in bringing these long-acting reversible contraceptives to market.
  • Addressing these challenges is crucial for improving contraceptive options.

Conclusions:

  • Despite extensive efforts, developing effective long-acting injectable contraceptives is complex.
  • Innovative drug delivery systems are key to achieving sustained release for long-term contraception.
  • Further research and development are needed to meet the demand for flexible, long-acting reversible contraceptive methods.