What the FDA labels say about taking them together
Mycophenolic acid and rifampin
Mycophenolic acid's FDA label of July 29, 2026 names rifampin in its drug interactions section; the rifampin label PlainMeds reads does not name mycophenolic acid. The mycophenolic acid label: “The concomitant administration of MMF and rifampin may decrease MPA plasma concentrations.”
Check it at the source: the mycophenolic acid FDA label on DailyMed (effective July 29, 2026, Novartis Pharmaceuticals Corporation); the rifampin FDA label on DailyMed (effective February 11, 2026, Lupin Pharmaceuticals, Inc.).
What does the mycophenolic acid label say about rifampin?
Mycophenolic acid label, drug interactionsThe concomitant administration of MMF and rifampin may decrease MPA plasma concentrations.
Source: FDA drug label (Myfortic), Novartis Pharmaceuticals Corporation, effective July 29, 2026 (SPL set eed26501-890d-4ff6-88e7-6dbea4726e53), via openFDA; the full label on DailyMed
What does the rifampin label say about mycophenolic acid?
Rifampin's label (effective February 11, 2026) does not name mycophenolic acid in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (rifampin), Lupin Pharmaceuticals, Inc., effective February 11, 2026 (SPL set b56004f0-f23d-47f6-80c7-39884fccbccc), 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
| Mycophenolic acid | Rifampin | |
|---|---|---|
| Labeled for | Organ transplant rejection | n/a |
| Boxed warning | Yes | No |
| Pharmacy cost (NADAC) | $0.0996 per tablet 180 mg tablet | $0.679 per capsule 300 mg capsule |
| Shortage now | No current entry | In shortage |
Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)
What next?
- Check more medicines together
- up to five at once