Carbenicillin Disodium: uses, dosing, side effects & brands
Carbenicillin Disodium is a medicine sold in the U.S. under 2 brand and generic names. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Available as
- Injectable
- Sold as
- 2 products — Pyopen and Geopen
- Prescription?
- Prescription only
- Generic available?
- Not in our catalog
Every carbenicillin disodium product we track (2)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
| # | Drug | Rating | Type | Form | Generic? | Pharmacy pays | |
|---|---|---|---|---|---|---|---|
| 1 | 70/100 | Prescription | Injectable | No data | — | View → | |
| 2 | Not yet rated | Prescription | Injectable | No data | — | View → |
What people report to the FDA about carbenicillin disodium
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 3 reports naming carbenicillin disodium, and the FDA flagged 100% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- amputation1 reports
- bk virus infection1 reports
- chronic allograft nephropathy1 reports
- coagulation time prolonged1 reports
- cryptococcosis1 reports
- cytomegalovirus infection1 reports
- diabetes mellitus1 reports
- disease recurrence1 reports
Read these as a signal, not a rate. A report does not mean carbenicillin disodium caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label section above.
Source: openFDA drug/event (FAERS), retrieved July 25, 2026.
Related calculators
Frequently asked questions
Can you take carbenicillin disodium with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run carbenicillin disodium against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What brand names is carbenicillin disodium sold under?
We track 2 carbenicillin disodium-containing products in the U.S.: Pyopen and Geopen. They are the same active ingredient; they differ in form, manufacturer, price and FDA recall record.
What forms does carbenicillin disodium come in?
Across the brands we track, carbenicillin disodium is currently marketed as injectable, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.
Is there a generic carbenicillin disodium?
We do not currently list a generic-labelled carbenicillin disodium product. That does not always mean none exists — it means none appears under a generic name in the FDA data we track. Ask your pharmacist.
Cite this page
- APA
- pharmaranks. (2026, July 24). Carbenicillin Disodium: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/carbenicillin-disodium
- MLA
- “Carbenicillin Disodium: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/carbenicillin-disodium.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for carbenicillin disodium on DailyMed (NIH) ↗.