Suppository Formulation and Delivery

📋 Course Outline

1. Suppository definitions
2. Uses and applications
3. Advantages of rectal route
4. Disadvantages and limitations
5. Local and systemic action
6. Factors influencing absorption
7. Suppository bases types
8. Fatty bases (oleaginous)
9. Water-soluble bases

📖 1. Suppository definitions

🔑 Key Concepts & Definitions

• Suppositories are solid dosage forms designed for insertion into body orifices where they melt, soften, or dissolve to exert local or systemic effects.
• Body orifices refer to natural openings in the body suitable for suppository insertion, such as the rectum, vagina, and urethra.
• Rectal suppositories are inserted into the rectum and are used to deliver medications either locally or systemically.
• Vaginal suppositories are inserted into the vaginal canal to produce local effects or deliver medication systemically.
• Urethral suppositories are inserted into the urethra, though less common, for local or systemic drug delivery.

📝 Essential Points

Suppositories are solid forms that are inserted into body orifices where they melt, soften, or dissolve to exert their effects. The common routes for administration include rectal, vaginal, and occasionally urethral. The shape and size of suppositories are critical; they must allow easy insertion into the orifice without causing undue distension and must be capable of being retained for the required duration.