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Controlled-release systems for intravaginal and intrauterine drug delivery have been developed primarily for the administration of contraceptive steroid hormones. These delivery routes circumvent first-pass hepatic metabolism, thereby enhancing bioavailability and allowing for reduced systemic dosages compared to oral administration. Such approaches contribute to improved therapeutic efficacy and patient compliance, particularly in long-term contraceptive regimens.Intravaginal Drug Delivery...
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Injectable contraception: updates and innovation.

Gillian Schivone1, Laneta Dorflinger, Vera Halpern

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|November 3, 2016
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Summary
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New injectable contraception methods are improving accessibility and side effects. Research focuses on self-injection, lower doses of depot medroxyprogesterone acetate (DMPA), and better drug delivery for wider use.

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Area of Science:

  • Reproductive Health
  • Contraceptive Technology
  • Pharmacology

Background:

  • Injectable contraception is a globally popular and highly effective birth control method.
  • Depot medroxyprogesterone acetate (DMPA) is a widely used injectable contraceptive.
  • Existing research aims to enhance DMPA's accessibility and reduce side effects.

Purpose of the Study:

  • To review new directions and approaches in injectable contraception.
  • To highlight advancements in making injectables like DMPA more accessible.
  • To discuss improvements in the side-effect profile of injectable contraceptives.

Main Methods:

  • Review of recent research on injectable contraception.
  • Focus on home-based or self-injection strategies.
  • Analysis of task-shifting and community-based distribution models.
  • Examination of studies on reduced DMPA dosage and improved drug delivery.
  • Investigation into DMPA's association with HIV and its use during medication abortion.

Main Results:

  • Research is exploring improved access through self-injection and community distribution.
  • Studies are investigating lower doses of DMPA while maintaining efficacy.
  • Enhancements in drug-delivery systems for DMPA are under development.
  • Further research is needed on DMPA's interaction with HIV and its use in medication abortion.

Conclusions:

  • Improving accessibility and side-effect profiles of injectables like DMPA is crucial.
  • Advancements in injectable contraception will increase their value for women.
  • Continued research is essential for optimizing injectable contraceptive use and safety.