Dofetilide and Dolutegravir interaction
Dofetilide and Dolutegravir: both prescribing labels 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 Dofetilide label · effective 2026-04-24
In addition, other known inhibitors of the renal cation transport system such as prochlorperazine, dolutegravir and megestrol should not be used in patients on dofetilide.
…WARNINGS, CONTRAINDICATIONS ), prochlorperazine (see WARNINGS, CONTRAINDICATIONS ), megestrol (see WARNINGS, CONTRAINDICATIONS ), ketoconazole (see WARNINGS, CONTRAINDICATIONS ), dolutegravir (see CONTRAINDICATIONS ), hydrochlorothiazide (alone or in combinations such as with triamterene) (see CONTRAINDICATIONS ), other cardiovascular drugs (especially verapamil…
From the Dolutegravir (Tivicay) label · effective 2026-05-22
TIVICAY and TIVICAY PD are contraindicated in patients: with previous hypersensitivity reaction to dolutegravir [see Warnings and Precautions ( 5.1 )]. receiving dofetilide due to the potential for increased dofetilide plasma concentrations and the risk for serious and/or life-threatening events [see Drug Interactions ( 7 )] .
Use alternative combinations that do not include metabolic inducers where possible for INSTI-experienced patients with certain INSTI-associated resistance substitutions or clinically suspected INSTI resistance. b Other Agents Dofetilide ↑Dofetilide Coadministration is contraindicated with TIVICAY or TIVICAY PD [see Contraindications ( 4 )] .
Dolutegravir may increase plasma concentrations of drugs eliminated via OCT2 or MATE1 (dofetilide, dalfampridine, and metformin, Table 8 ) [see Contraindications ( 4 ), Drug Interactions ( 7.3 )] .
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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.