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What the FDA labels say about taking them together

Ambrisentan and cyclosporine

Ambrisentan's FDA label of September 3, 2026 names cyclosporine in its drug interactions section, and cyclosporine's label names ambrisentan too. The ambrisentan label: “DRUG INTERACTIONS Multiple dose coadministration of ambrisentan and cyclosporine resulted in an approximately 2 fold increase in ambrisentan exposure in healthy volunteers; …”

Check it at the source: the ambrisentan FDA label on DailyMed (effective September 3, 2026, Apotex Corp.); the cyclosporine FDA label on DailyMed (effective August 10, 2026, Novartis Pharmaceuticals Corporation).

What does the ambrisentan label say about cyclosporine?

Ambrisentan label, drug interactions

DRUG INTERACTIONS Multiple dose coadministration of ambrisentan and cyclosporine resulted in an approximately 2 fold increase in ambrisentan exposure in healthy volunteers; therefore, limit the dose of ambrisentan to 5 mg once daily when coadministered with cyclosporine [see Clinical Pharmacology (12.3) ].

Source: FDA drug label (Ambrisentan), Apotex Corp., effective September 3, 2026 (SPL set 291a782a-77e1-8a8e-e1c8-2626f305c2b7), via openFDA; the full label on DailyMed

What does the cyclosporine label say about ambrisentan?

Cyclosporine label, drug interactions

Ambrisentan Coadministration of ambrisentan (5 mg daily) and cyclosporine (100 to 150 mg twice daily initially, then dosing to achieve C min 150 to 200 ng/mL) for 8 days in healthy subjects resulted in mean increases in ambrisentan AUC and C max of approximately 2-fold and 1.5–fold, respectively, compared to ambrisentan alone.

Source: FDA drug label (Sandimmune, NDA050573), Novartis Pharmaceuticals Corporation, effective July 10, 2026 (SPL set 5e5926a7-1de0-4b54-a5c0-286b6200ff82), via openFDA

Source: FDA drug label (Neoral), Novartis Pharmaceuticals Corporation, effective August 10, 2026 (SPL set 94461af3-11f1-4670-95d4-2965b9538ae3), via openFDA; the full label on DailyMed

These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.

Both medicines on the record

12Ambrisentan generic labelers
14Cyclosporine generic labelers
AmbrisentanCyclosporine
Labeled forPulmonary arterial hypertensionOrgan transplant rejection, Rheumatoid arthritis
Boxed warningYesYes
Pharmacy cost (NADAC)$8.02 per tablet 10 mg tablet$1.04 per unit 0.05% eye emulsion
Shortage nowNo current entryNo current entry

Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)

What next?