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Insulin Formulations: Types and Delivery01:27

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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.
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Factors Influencing Drug Absorption: Pharmaceutical Parameters01:28

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Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...
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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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As defined by regulatory standards, pharmaceutical equivalents require generic drug products to have identical dosage forms and chemically identical active pharmaceutical ingredients (APIs). They must adhere to compendial or applicable standards for potency, content uniformity, disintegration times, and dissolution rates. In the case of modified-release dosage forms, variations in drug content are permissible as long as the delivered amount remains consistent with the innovator drug product.
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Toxicity Screens in Human Retinal Organoids for Pharmaceutical Discovery
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Pharmaceutical Formulation Methods for Improving Retinal Drug Delivery.

Tomasz P Stryjewski1, James A Stefater1, Dean Eliott1

  • 1a Massachusetts Eye and Ear , Boston , MA.

Seminars in Ophthalmology
|June 1, 2019
PubMed
Summary
This summary is machine-generated.

Pharmaceutical formulation is crucial for turning potential drugs into usable therapies. This review examines formulation strategies for common retinal medications, highlighting their importance beyond the active ingredient.

Keywords:
Active Pharmaceutical IngredientRetinadrug productsformulationpharmacology

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Area of Science:

  • Ophthalmology
  • Pharmaceutical Sciences
  • Drug Delivery

Background:

  • Clinical pharmacology training often emphasizes Active Pharmaceutical Ingredients (APIs).
  • Pharmaceutical formulation is essential for drug product development and clinical utility.
  • Retina drug products face unique formulation challenges due to ocular anatomy and physiology.

Purpose of the Study:

  • To review formulation methods for commonly prescribed retina drug products.
  • To underscore the significance of pharmaceutical formulation in ocular therapeutics.
  • To bridge the gap between API knowledge and practical drug product development for eye conditions.

Main Methods:

  • Literature review of scientific databases.
  • Analysis of formulation strategies for marketed retinal drugs.
  • Identification of key excipients and manufacturing processes.

Main Results:

  • Common formulation types include solutions, suspensions, and intraocular implants.
  • Excipients are critical for drug stability, solubility, and sustained release.
  • Manufacturing processes impact drug safety, efficacy, and patient compliance.

Conclusions:

  • Effective formulation is paramount for successful retina drug development.
  • Understanding formulation enhances clinical pharmacology and therapeutic outcomes.
  • Further research into novel formulation techniques can improve ocular drug delivery.