Clarithromycin and Lomitapide interaction
Clarithromycin and Lomitapide: 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 Clarithromycin label · effective 2026-01-01
Lomitapide, lovastatin, and simvastatin ( 4.5 )
Lomitapide, Lovastatin, and Simvastatin Concomitant administration of clarithromycin tablets with lomitapide is contraindicated due to potential for markedly increased transaminases [see Warnings and Precautions ( 5.4 ) and Drug Interactions ( 7 )].
These include colchicine toxicity with colchicine; markedly increased transaminases with lomitapide; rhabdomyolysis with simvastatin, lovastatin, and atorvastatin; hypoglycemia and cardiac arrhythmias (e.g., torsades de pointes) with disopyramide; and hypotension and acute kidney injury with calcium channel blockers metabolized by CYP3A4 (e.g., verapamil, amlodipine,…
The use of clarithromycin with lomitapide, simvastatin, lovastatin, ergotamine, or dihydroergotamine is contraindicated [see Contraindications ( 4.5 , 4.6 ) and Drug Interactions ( 7 )].
Lomitapide: Concomitant use of clarithromycin with lomitapide is contraindicated [see Contraindications ( 4.5 )].
From the Lomitapide (Juxtapid) label · effective 2026-01-20
Concomitant administration of JUXTAPID with moderate or strong CYP3A4 inhibitors, as this can increase JUXTAPID exposure [see Warnings and Precautions (5.6) , Drug Interactions (7.1) , and Clinical Pharmacology (12.3) ].
Concomitant use with strong or moderate CYP3A4 inhibitors ( 4 ).
Concomitant use of moderate or strong CYP3A4 inhibitors with JUXTAPID is contraindicated [see Drug Interactions (7.1) ].
If treatment with moderate or strong CYP3A4 inhibitors is unavoidable, JUXTAPID should be stopped during the course of treatment.
Strong and moderate CYP3A4 inhibitors are contraindicated with JUXTAPID.
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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.