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Related Concept Videos

Dosage Regimen: Fixed Dose01:01

Dosage Regimen: Fixed Dose

Fixed-dose regimens are a common approach to administer drugs to achieve and maintain desired levels of the drug in the body. In this dosing strategy, a specific amount of medication is given at regular intervals, often multiple times a day, to ensure a consistent drug concentration in the bloodstream.
Fixed-dose regimens can be used for various routes of administration, including intravenous (IV) injections and oral medications. For IV administration, a predetermined amount of the drug is...
Dosage Regimen: Individualization01:24

Dosage Regimen: Individualization

Individualization in dosing regimens is the customization of medication doses for individual patients. Its necessity arises from the goal of maximizing therapeutic benefits while minimizing risks. This approach is pivotal because human responses to drugs can vary widely; what is effective for one person may be inadequate or excessive for another. Interpatient (intersubject) variability refers to differences in drug responses between individuals, while intrapatient (intrasubject) variability...
Drug toxicity: Idiosyncratic Reactions01:16

Drug toxicity: Idiosyncratic Reactions

Idiosyncratic drug reactions represent abnormal chemical responses that vary significantly among individuals, ranging from extreme sensitivity to low doses to insensitivity to high doses. These reactions often occur due to the drug's covalent binding with serum proteins, forming a foreign hapten that triggers an immunotoxicological response. The variability in drug reactions has a strong pharmacogenetic foundation, with genetic differences crucial in how individuals metabolize drugs. For...
Combined Effects of Drugs: Synergism01:27

Combined Effects of Drugs: Synergism

Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
Dosage Regimens: Designs and Approaches01:28

Dosage Regimens: Designs and Approaches

Designing a dosage regimen, which refers to the manner of drug administration, is a complex process involving the selection of drug dose, route, and frequency. This process is underpinned by pharmacokinetic parameters derived from tests and population averages. These parameters are then tailored to patient-specific variables such as diagnosis, demographics, and allergy status. Once therapy commences, therapeutic response monitoring is critical and achieved through clinical and physical...

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Diagonal Method to Measure Synergy Among Any Number of Drugs
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Published on: June 21, 2018

[Tolerance to fixed combinations].

M Villain1

  • 1Service d'Ophtalmologie, Hôpital Gui de Chauliac, CHU de Montpellier, Montpellier, France.

Journal Francais D'Ophtalmologie
|October 30, 2008
PubMed
Summary
This summary is machine-generated.

Glaucoma medications, including fixed combinations, offer therapeutic options. This review examines adverse events and contraindications for beta-blockers, prostaglandin analogs, alpha-2 agonists, and carbonic anhydrase inhibitors.

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Area of Science:

  • Ophthalmology
  • Pharmacology

Context:

  • Glaucoma management relies on medical therapy.
  • Fixed drug combinations are available for long-term use.

Purpose:

  • To review adverse events and contraindications.
  • To assess fixed combination therapy for glaucoma.

Summary:

  • Four main drug classes are used: beta-blockers, prostaglandin analogs, alpha-2 agonists, and carbonic anhydrase inhibitors.
  • Fixed combinations of these drugs are common.
  • Tolerance may be better with fixed combinations.

Impact:

  • Provides clinicians with essential safety information.
  • Aids in optimizing glaucoma treatment strategies.
  • Enhances patient safety by detailing potential risks.