Dorzolamide and timolol and Tamsulosin interaction
Dorzolamide and timolol and Tamsulosin: the Tamsulosin prescribing label flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Tamsulosin (Tamsulosin Hydrochloride) label · effective 2026-08-12
If a patient reports a serious or life-threatening sulfa allergy, caution is warranted when administering tamsulosin hydrochloride capsules.
Sulfa Allergy In patients with sulfa allergy, allergic reaction to tamsulosin hydrochloride capsules has been rarely reported.
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Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.