Drug Administration Methods: Routes of Delivery Explained
Learn about various methods of drug administration including intrathecal, intra-arterial, transdermal, intraperitoneal, intranasal, inhalation, and rectal routes. Understand how drugs are delivered and their effects on the body.
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Presentation Transcript
Methods of Drug Administration part 2 By: prof. Dr. Fadhil Sahib . Department of Radiology Technologies Al-Mustaqbal University College
Intrathecal and Intra-arterial IT: Direct to cerebrospinal fluid for CNS effects. Intra-arterial: Delivers drugs to specific organs chemotherapy), but risky. (e.g.,
3. Transdermal and Topical Routes Topical: Localized effect on skin. Transdermal: Patches deliver drugs systemically over time (e.g., nicotine, scopolamine).
4. Intraperitoneal Route Used in preclinical testing or for peritoneal cancers. May cause peritonitis in dialysis patients.
5. Intranasal Route Used for local/systemic effects (e.g., rhinitis). absorption mucosa. Good due to nasal
5. Intranasal Route Good mucosa. absorption due to nasal Tested peptides with insulin and small
6. Inhalation Route Targets delivery. Large surface area (~70 m ). lungs for drug
6. Inhalation Route High reaches alveoli. Used nebulizers. absorption if drug with inhalers and
7. Rectal Route Alternative when oral is not suitable. Bypasses liver metabolism.
7. Rectal Route Used metoclopramide. for drugs like morphine, Better absorption in solutions than suppositories.
