Prescription medicine
Pentamidine diisethionate
Pentamidine diisethionate is a prescription medicine. FDA's NDC Directory lists it from 1 generic labeler.
- Generic listed
Check it at the source: the pentamidine diisethionate FDA label on DailyMed (effective May 7, 2026, PAI Holdings, LLC dba PAI Pharma); every pentamidine diisethionate label on DailyMed.
Highlights of the record
FDA label of May 7, 2026; NDC Directory, Drugs@FDA and Orange Book, October 8, 2026
Used for
From the label: indications and usagePentamidine isethionate for injection is indicated for the treatment of pneumonia due to Pneumocystis carinii.
Forms and strengths
- 300 mg
Inhalant; injection (powder) (lyophilized) for solution.
On the market
- Generic approvals
- No generic approved
- Labelers listed (NDC)
- 1 of which 1 under generic applications, 0 under brand applications, repackagers included
Supply and safety
- Pharmacy cost (NADAC)
- Not in the survey
- Shortage (FDA)
- No current entry
- Recalls by its makers (FDA)
- No recall recorded
- FAERS reports
- 1,232 through July 30, 2026
What is pentamidine diisethionate used for?
From the label: indications and usagePentamidine isethionate for injection is indicated for the treatment of pneumonia due to Pneumocystis carinii.
FDA pharmacologic class: Antiprotozoal.
Source: FDA drug label (Pentamidine Isethionate), PAI Holdings, LLC dba PAI Pharma, effective May 7, 2026 (SPL set d46aea4f-8f3f-4ce0-93d6-94e147f5a31a), via openFDA; the full label on DailyMed
Is there a generic for pentamidine diisethionate?
No generic pentamidine diisethionate is approved (Drugs@FDA, October 8, 2026).
FDA's NDC Directory lists pentamidine diisethionate from 1 labeler under a generic (ANDA) application. A listing means the company has registered the product for sale; it does not show that every pharmacy stocks it.
Source: Drugs@FDA, FDA NDC Directory and the Orange Book (openFDA bulk files, October 8, 2026)
What does the pentamidine diisethionate label say about other medicines?
The pentamidine diisethionate label names 1 other medicine in its interaction, contraindication or warning sections. The sentences are the labels' own; a label lists what its studies and reports found, not every interaction.
| Medicine named | Section | What the label says |
|---|---|---|
| Pentamidine isethionate | contraindications | CONTRAINDICATIONS Contraindicated in patients with a history of hypersensitivity to pentamidine isethionate. |
Source: FDA drug label (Pentamidine Isethionate), PAI Holdings, LLC dba PAI Pharma, effective May 7, 2026 (SPL set d46aea4f-8f3f-4ce0-93d6-94e147f5a31a), via openFDA; the full label on DailyMed
What do FAERS reports show for pentamidine diisethionate?
The FDA Adverse Event Reporting System holds 1,232 reports that list pentamidine diisethionate among the medicines taken, through July 30, 2026, each a report of something that happened, not proof the medicine caused it; 219 are coded as a death and 606 as a hospital stay. Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is.
Reports received each year
The most reported reactions
Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026
What next?
- Other antiprotozoals
- the pharmacologic class, with prices and generics
- Pentamidine diisethionate side effects
- the label's list beside FAERS reports
- Check an interaction
- what two or more labels say about each other