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Oral Drug Delivery Systems: Introduction

Oral Drug Delivery Systems: Introduction

Oral drug delivery is the most common route of administration due to its convenience, cost-effectiveness, and high patient compliance. It enables precise formulation to ensure proper drug dosage and bioavailability. The development of oral dosage forms considers drug properties such as solubility, stability, and absorption to optimize therapeutic efficacy.Tablets, capsules, liquids, and chewable formulations enhance drug stability, mask undesirable tastes, and improve patient experience.

Drug Delivery Systems: Different Types

Drug Delivery Systems: Different Types

Conventional oral drug products, termed immediate-release (IR) formulations, are engineered to promptly release their active pharmaceutical ingredient (API) upon ingestion, typically in tablets or capsules. This rapid release often results in swift drug absorption and consequent pharmacodynamic effects, although the timing and intensity can vary depending on the drug's properties. Prodrugs within these formulations require metabolic conversion to activate their pharmacodynamic effects,...

Ophthalmic Drug Delivery Systems

Ophthalmic Drug Delivery Systems

Ophthalmic drug delivery faces major limitations due to poor absorption across the corneal membrane. This process is primarily driven by diffusion and is influenced by two main factors: the physicochemical properties of the drug and tear drainage. Most ophthalmic drugs, such as pilocarpine, epinephrine, atropine, and local anesthetics, are weak bases. They are typically formulated at an acidic pH to enhance chemical stability. However, this leads to high ionization, reducing their ability to...

Factors Affecting Drug Response: Overview

Factors Affecting Drug Response: Overview

When it comes to infants and young children, they are typically administered smaller doses of medication in comparison to adults. This is primarily because their organ functions still need to fully develop, meaning their bodies are not as efficient at metabolizing or eliminating drugs. Additionally, their blood-brain barrier is more permeable than in adults. As a result, high concentrations of drugs can easily penetrate the central nervous system (CNS), potentially leading to neurological...

Drug Delivery: Miscellaneous Routes

Drug Delivery: Miscellaneous Routes

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 through the...

Routes of Drug Administration: Overview

Routes of Drug Administration: Overview

Drug administration involves delivering drugs to the body through various routes, such as enteral, parenteral, and topical.
Enteral administration refers to drugs absorbed through the gastrointestinal tract. They can be swallowed (perorally), placed under the tongue (sublingually), or on the inner lining of the cheeks (buccally). Perorally administered drugs take time to be absorbed and have a slower onset of action. The rectal route is another form of enteral administration, which allows for...

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Related Experiment Video

Updated: May 30, 2026

Utilizing an Orally Dissolving Strip for Pharmacological and Toxicological Studies: A Simple and Humane Alternative to Oral Gavage for Animals

Utilizing an Orally Dissolving Strip for Pharmacological and Toxicological Studies: A Simple and Humane Alternative to Oral Gavage for Animals

Published on: March 23, 2016

Do medicines OSCEs improve drug administration ability?

Ronnie Meechan¹, Helen Jones, Tracey Valler-Jones

¹University of Worcester, UK.

British Journal of Nursing (Mark Allen Publishing)

|August 16, 2011

Summary

Early introduction of Objective Structured Clinical Examinations (OSCEs) in nursing education significantly improved students' drug administration skills and pharmacology knowledge. This early assessment enhances applied learning before qualification.

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Evaluation of Drug Sorption to PVC- and Non-PVC-based Tubes in Administration Sets Using a Pump

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Published on: March 11, 2017

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Last Updated: May 30, 2026

Utilizing an Orally Dissolving Strip for Pharmacological and Toxicological Studies: A Simple and Humane Alternative to Oral Gavage for Animals

Utilizing an Orally Dissolving Strip for Pharmacological and Toxicological Studies: A Simple and Humane Alternative to Oral Gavage for Animals

Published on: March 23, 2016

Evaluation of Drug Sorption to PVC- and Non-PVC-based Tubes in Administration Sets Using a Pump

Evaluation of Drug Sorption to PVC- and Non-PVC-based Tubes in Administration Sets Using a Pump

Published on: March 11, 2017

Area of Science:

Nursing Education
Pharmacology
Medical Simulation

Background:

Undergraduate nursing programs require robust assessment of drug administration and pharmacology knowledge.
Traditional assessments may not fully capture applied skills needed for safe practice.

Purpose of the Study:

To evaluate the effectiveness of integrating Objective Structured Clinical Examinations (OSCEs) early in undergraduate adult nursing education.
To determine if early OSCE introduction improves applied pharmacology knowledge and drug administration skills before nursing program completion.

Main Methods:

A longitudinal comparative study design was employed with three cohorts of adult nursing students (N=90).
Students were assessed at 8, 20, and 30 months into their program using a drug administration simulated activity (DASA).
Performance differences were compared against DASA criteria, with some cohorts exposed to early OSCEs.

Main Results:

Significant statistical differences in DASA performance were observed across the three student groups.
Students exposed to early medicines management OSCEs demonstrated superior pharmacology knowledge and drug administration skills compared to the control group.

Conclusions:

Early integration of OSCEs, combined with pharmacology and medicines management teaching, enhances nursing students' drug administration abilities.
Objective Structured Clinical Examinations are effective tools for improving applied pharmacology and practical skills in nursing education.