Drug formulation and drug delivery systems by Dr.Rashid Iqbal MBBS MD

Описание: In this practical-oriented lecture, we cover PH 1.3 competency — Enumerate and identify drug formulations and drug delivery systems.

This session is designed for MBBS students under CBME curriculum and focuses on conceptual clarity plus practical identification.

🔹 What is a Drug?

• A drug is a chemical substance that interacts with a biological system to produce a response.
• Pharmacology: Study of interaction of drugs with living systems.

🔹 Why Do We Need Dosage Forms?

Dosage forms are essential because:

✔ Protection from gastric juice (e.g., enteric-coated tablets)
✔ Masking unpleasant taste and odor
✔ Targeted placement within body tissues or cavities
✔ Deciding duration of drug action (sustained/controlled release)
✔ Allowing administration of poorly soluble drugs
✔ Accurate dosing and patient compliance

🔹 Drug Delivery Systems

Drug delivery systems are designed to:

• Control rate of release
• Improve bioavailability
• Reduce adverse effects
• Enhance therapeutic efficacy

🔹 Dosage Forms for Systemic Administration
1️⃣ Solid Dosage Forms

• Tablets
• Capsules
• Pills
• Powders
• Granules

Features: Stability, convenience, accurate dosing.

2️⃣ Liquid Dosage Forms

• Syrups
• Suspensions
• Emulsions
• Solutions
• Elixirs

Features: Faster absorption, useful in pediatric and geriatric patients.

🎯 This topic is important for:
• Practical exams
• Spotters
• Viva questions
• Internal assessment
• University exams

📌 Watch till the end to clearly understand identification and classification of drug dosage forms.

PH 1.3 pharmacology
drug formulation
drug delivery system
dosage forms pharmacology
solid dosage forms
liquid dosage forms
MBBS pharmacology practical
CBME pharmacology
NMC pharmacology syllabus
drug identification practical
systemic administration dosage forms
pharmacology viva questions


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