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Related Concept Videos

Intrauterine Drug Delivery Systems01:21

Intrauterine Drug Delivery Systems

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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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Vasectomy is a surgical form of male sterilization that involves severing and sealing the vasa deferentia, preventing sperm from mixing with semen during ejaculation. Because a vasectomy does not impact the testes' ability to produce testosterone, hormone levels, libido, and sexual function generally remain unchanged. While vasectomy is highly effective in preventing pregnancy, with a success rate near 99.85%, rare cases of recanalization (spontaneous reconnection) can occur. Although...
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Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
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Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
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In vitro dissolution and drug release tests assess how quickly and how much of a drug is released from its dosage form into an aqueous medium under standardized laboratory conditions. These tests are essential tools in pharmaceutical development and quality assurance, offering insight into the drug's performance before clinical use.During formulation development, dissolution testing identifies incomplete or inconsistent drug release issues. It also supports decisions on selecting the optimal...
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The selection of a drug's delivery route depends upon its physicochemical properties, including lipid or water solubility and ionization, as well as the therapeutic requirement, such as immediate or sustained effect. These routes can be divided into three primary categories: enteral, parenteral, and topical.
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Related Experiment Video

Updated: Mar 16, 2026

Uptake of New Lipid-coated Nanoparticles Containing Falcarindiol by Human Mesenchymal Stem Cells
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Pipeline for contraceptive development.

Diana L Blithe1

  • 1Contraception Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland.

Fertility and Sterility
|August 16, 2016
PubMed
Summary
This summary is machine-generated.

Developing male contraceptives addresses unmet needs for both women and men. These methods offer safer options for women with health risks and empower men to control fertility, while also reducing environmental hormone pollution.

Keywords:
Contraceptionfemale contraceptiongreen contraceptionmale contraceptionnonhormonal contraceptive development

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Area of Science:

  • Reproductive Health
  • Contraceptive Development
  • Environmental Health

Background:

  • High rates of unplanned pregnancy indicate a need for improved contraceptive options.
  • Certain health conditions contraindicate estrogen-based contraceptives for women.
  • Current contraceptive methods can impact the environment through hormone release.

Purpose of the Study:

  • To explore the potential of male contraception to meet unmet reproductive health needs.
  • To identify contraceptive solutions that enhance safety for women with contraindications.
  • To develop environmentally friendly fertility control methods.

Main Methods:

  • Review of existing and developing male contraceptive technologies.
  • Analysis of safety profiles and user acceptability for potential male methods.
  • Assessment of environmental impact compared to current female contraceptives.

Main Results:

  • Male contraceptives can provide an alternative for women with health risks.
  • Development offers men greater control over their fertility.
  • New male methods can prevent ecotoxic hormone release into water systems.

Conclusions:

  • Male contraceptive development is crucial for addressing safety and unmet needs.
  • These methods offer significant benefits for individual reproductive health and the environment.
  • Further research and development in male contraception are warranted.