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Related Concept Videos

Vitamins01:30

Vitamins

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Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced...
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Pharmacovigilance01:19

Pharmacovigilance

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Post-marketing surveillance is a critical component of pharmaceutical regulation, often uncovering unanticipated adverse drug reactions (ADRs) once a drug is widely used over an extended period.
This process, termed pharmacovigilance, aims to detect, evaluate, and minimize harmful effects related to medication use. The data collection for pharmacovigilance depends on spontaneous reporting systems, where healthcare professionals or patients voluntarily report suspected ADRs.
In some cases, there...
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Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants01:18

Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants

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Oral anticoagulants are vital tools in preventing and treating blood clotting disorders. This diverse class of medications can be categorized as vitamin K antagonists, exemplified by warfarin, and direct thrombin inhibitors (DTIs), such as dabigatran, as well as factor Xa inhibitors, including rivaroxaban.
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
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Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

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Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
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Teratogenicity01:07

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The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
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Drug Regulation01:25

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Drug regulation encompasses the management of drug usage by evaluating its safety and efficacy through assessments conducted by regulatory authorities. Regrettably, the history of drug regulation is marred by several catastrophic events. One such incident is the Elixir Sulfanilamide tragedy, in which the toxic compound diethyl glycol was included in a sweet-tasting medication, leading to numerous fatalities. This event prompted the enactment of the Food, Drug, and Cosmetic Act in 1938. Under...
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Author Spotlight: Investigating Physiological Functions of Vitamin A Transporters Using HPLC-Based Vitamin A Profiling
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Do You Know How to Assess Risks Posed by Over-the-Counter Vitamin A Supplements?

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High-dose vitamin A supplements pose risks, similar to prescription drugs, due to inadequate FDA oversight. Label analysis is crucial for patient safety and understanding potential birth defect risks.

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Area of Science:

  • Pharmacology
  • Public Health
  • Regulatory Science

Background:

  • Dietary supplements are regulated as foods by the US Food and Drug Administration (FDA).
  • Unlike prescription medications, supplements face less stringent labeling and safety regulations.
  • High-dose vitamin A and its derivatives, such as isotretinoin, are known teratogens.

Purpose of the Study:

  • To compare the regulatory landscape of high-dose vitamin A supplements and prescription vitamin A derivatives.
  • To highlight the potential risks, including birth defects, associated with both product types.
  • To advocate for enhanced FDA oversight of the dietary supplement industry.

Main Methods:

  • Comparative analysis of regulatory frameworks for dietary supplements and prescription drugs.
  • Review of safety data and labeling requirements for vitamin A and its derivatives.
  • Case commentary on vitamin A supplement safety.

Main Results:

  • Both high-dose vitamin A supplements and prescription vitamin A derivatives carry risks, including the potential to cause birth defects.
  • Regulatory oversight and labeling requirements differ significantly between supplements and prescription medications.
  • Current FDA oversight of dietary supplements is insufficient to mitigate potential harm.

Conclusions:

  • Enhanced FDA oversight is necessary for the dietary supplement industry.
  • Clearer labeling and patient education regarding the risks of vitamin A supplements are essential.
  • Regulatory parity between supplements and drugs with similar risk profiles should be considered.