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Systemic toxicity. Associated with topical ophthalmic medications
1University of California San Francisco Medical Center.
The Journal of the Florida Medical Association
|April 1, 1994
Summary
Ophthalmic eye drops can cause systemic side effects due to excessive absorption through the nasolacrimal system. Understanding and preventing this absorption is key to patient safety with topical eye medications.
Area of Science:
- Ophthalmology
- Pharmacology
- Drug Safety
Background:
- Topical ophthalmic preparations, such as eye drops and ointments, carry a risk of systemic adverse events.
- The nasolacrimal system facilitates drug absorption into nasal mucosae, bypassing hepatic first-pass metabolism and increasing bioavailability.
- Commonly implicated ophthalmic drugs include those for glaucoma, diagnostics, antimicrobials, and anti-inflammatories.
Purpose of the Study:
- To review reported systemic reactions associated with topical ophthalmic drug administration.
- To summarize methods for preventing excessive drug absorption from ophthalmic preparations.
Main Methods:
- Literature review of reported systemic reactions.
- Analysis of the nasolacrimal system's role in drug absorption.
- Summary of preventative strategies.
Main Results:
- Excessive absorption via the nasolacrimal system can lead to systemic adverse events.
- The nasal mucosa is a significant route for systemic drug uptake from ocular medications.
- Various methods can be employed to mitigate excessive absorption.
Conclusions:
- Systemic absorption of ophthalmic drugs is a recognized clinical concern.
- Preventative measures are crucial for enhancing patient safety when using topical eye medications.
- Further research into optimized drug delivery and absorption reduction is warranted.