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Related Concept Videos

Birth Control Methods01:22

Birth Control Methods

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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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Insulin Formulations: Types and Delivery01:27

Insulin Formulations: Types and Delivery

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Insulin preparations are categorized by their duration of action into short-acting and long-acting types. Two strategies are used to modify insulin's absorption and pharmacokinetic profile: slowing the absorption post-subcutaneous injection, or altering human insulin's amino acid sequence or protein structure. These changes retain the insulin's ability to bind to the insulin receptor, but alter its behavior in solution or after injection.
Short-acting insulins are divided into...
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Nondepolarizing (Competitive) Neuromuscular Blockers: Pharmacokinetics01:11

Nondepolarizing (Competitive) Neuromuscular Blockers: Pharmacokinetics

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All neuromuscular blocking agents are injected intravenously because they are poorly absorbed from the GI tract. Rapid onset is achieved with intravenous administration, although absorption is also adequate from an intramuscular injection. Since these agents are highly ionized, they do not readily penetrate cell membranes or cross the blood-brain barrier.
Instead, they are transported by the blood to different tissues. Muscles with a greater blood supply (arteries) and blood flow receive more...
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Drug Delivery: Miscellaneous Routes01:22

Drug Delivery: Miscellaneous Routes

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Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection,  and rectal administration provide localized effects with reduced toxicity.
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs...
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Drug Delivery: Parenteral Route01:29

Drug Delivery: Parenteral Route

871
The parenteral route is a critical method of drug administration. It delivers compounds directly into the systemic circulation and bypasses the gastrointestinal tract. This approach is particularly advantageous for drugs that exhibit poor absorption or instability when administered orally.
There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...
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Insulin: Dosing Regimen and Adverse Effects01:16

Insulin: Dosing Regimen and Adverse Effects

268
Insulin-replacement therapy usually includes both long-acting insulin (basal) and short-acting insulin (to cater to postprandial needs). In a diverse group of type 1 diabetes patients, the average daily insulin dose is typically 0.5-0.7 units/kg body weight. However, obese patients and pubertal adolescents may need more due to insulin resistance.
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
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Update on long- and short-acting contraceptive methods.

Emma Mason1, Kirsten Black1

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Australian Prescriber
|June 26, 2025
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Long-acting reversible contraceptives (LARCs) like implants and intrauterine devices are highly effective for preventing unintended pregnancies. Choosing the right birth control method involves considering medical eligibility, patient preferences, and reproductive stage.

Keywords:
contraceptionintrauterine deviceslong-acting reversible contraceptionoral contraceptive pillprogestogen-only pill

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Area of Science:

  • Reproductive Health
  • Contraception Science

Background:

  • Long-acting reversible contraceptives (LARCs) are highly effective and cost-effective birth control options.
  • LARCs demonstrate superior efficacy in preventing unintended pregnancies compared to short-acting contraceptives.
  • Short-acting methods include combined hormonal contraception, progestogen-only pills, and injections.

Purpose of the Study:

  • To review the effectiveness and considerations for choosing long-acting reversible contraceptive methods.
  • To highlight the importance of patient counseling and regular follow-up for contraceptive management.

Main Methods:

  • Review of current literature on contraceptive efficacy and patient factors.
  • Analysis of comparative effectiveness between LARC and short-acting methods.
  • Emphasis on medical eligibility criteria and patient-centered care.

Main Results:

  • LARCs are more effective than short-acting methods in reducing unintended pregnancy.
  • Contraceptive choice depends on medical eligibility, patient preference, and life stage.
  • Patient counseling and regular reviews are crucial for informed decision-making and monitoring.

Conclusions:

  • Long-acting reversible contraceptives offer a highly effective and cost-effective strategy for pregnancy prevention.
  • Informed decision-making through comprehensive counseling and regular reviews enhances contraceptive adherence and outcomes.