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Accidental overdose of travoprost
Denise Goodwin1, Dina H Erickson
1*OD, FAAO Pacific University College of Optometry, Forest Grove, Oregon (both authors).
Purpose:
To report systemic symptoms after an overdose of travoprost.
Case Report:
We report a patient who, instead of artificial tears, inadvertently used travoprost every 15 minutes for 7 hours after LASIK (laser-assisted in situ keratomileusis) surgery. She experienced abrupt, severe abdominal cramps and sudden, severe menstrual bleeding, which subsided quickly upon discontinuation of the drug.
Conclusions:
Because of the few systemic adverse effects, prostaglandin analogs are widely used for the treatment of glaucoma. Travoprost should be taken once daily; therefore, overdose is extremely uncommon. Systemic prostaglandins have been found to be mediators of uterine activity and are used to induce labor and terminate pregnancies. The high dose of this topical medication, as well as the compromised cornea, makes this case unique. The unusual circumstances observed in this case greatly expand our knowledge regarding the potential adverse effects of travoprost.