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What the FDA labels say about taking them together

Ensitrelvir and pimozide

Ensitrelvir's FDA label of June 3, 2026 names pimozide in its drug interactions section; the pimozide label PlainMeds reads does not name ensitrelvir. The ensitrelvir label: “Co-administration is contraindicated due to serious and/or life-threatening reactions, such as cardiac arrhythmias.”

Check it at the source: the ensitrelvir FDA label on DailyMed (effective June 3, 2026, Shionogi Inc.); the pimozide FDA label on DailyMed (effective August 12, 2026, Par Health USA, LLC).

What does the ensitrelvir label say about pimozide?

Ensitrelvir label, drug interactions

Drug Class: Antipsychotics; Drug (s) within Class: lurasidone, pimozide; Effect on Drug Concentration: ↑ lurasidone, pimozide; Clinical Comment: Co-administration is contraindicated due to serious and/or life-threatening reactions, such as cardiac arrhythmias.

Source: FDA drug label (XOCOVA), Shionogi Inc., effective June 3, 2026 (SPL set 526acf60-abc3-2cc2-e063-6294a90affa6), via openFDA; the full label on DailyMed

What does the pimozide label say about ensitrelvir?

Pimozide's label (effective August 12, 2026) does not name ensitrelvir in these sections. A label lists what its studies and reports found; it is not a complete list.

Source: FDA drug label (Pimozide), Par Health USA, LLC, effective August 12, 2026 (SPL set 70b079e2-a1f7-4a93-8685-d60a4d7c1280), 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

0Ensitrelvir generic labelers
2Pimozide generic labelers
EnsitrelvirPimozide
Labeled forCOVID-19n/a
Boxed warningNoNo
Pharmacy cost (NADAC)n/a$1.23 per tablet 1 mg tablet
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?