Two medicines, side by side
Tolnaftate vs undecylenic acid
Tolnaftate and undecylenic acid are both labeled for fungal infections.
Check it at the source: the tolnaftate FDA label on DailyMed (effective January 29, 2026); the undecylenic acid FDA label on DailyMed (effective July 9, 2026).
Highlights of the tolnaftate record
Tolnaftate · label of January 29, 2026
Used for
From the label: indicationsproven clinically effective in the treatment of most athlete’s foot (tinea pedis) and ringworm (tinea corporis) helps prevent most athlete’s foot with daily use for effective relief of itching, burning, and cracking
On the market
- Earliest approval on file
- n/a
- Generic labelers
- none listed
- Pharmacy cost
- $0.119 per gram
Supply and safety
- Shortage
- No current entry
- Recalls
- 0
Highlights of the undecylenic acid record
Undecylenic acid · label of July 9, 2026
Used for
From the label: indicationsFor the treatment of athlete's foot,jock, itch, and ringworm.
On the market
- Earliest approval on file
- n/a
- Generic labelers
- none listed
- Pharmacy cost
- Not in the survey
Supply and safety
- Shortage
- No current entry
- Recalls
- 0
Source: FDA drug labels via openFDA (Tolnaftate label of January 29, 2026, Undecylenic acid label of July 9, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)
How do tolnaftate and undecylenic acid differ on the record?
| Tolnaftate | Undecylenic acid | |
|---|---|---|
| Labeled for | Fungal infections | Fungal infections, Pain |
| Pharmacologic class | n/a | n/a |
| How it works (label) | n/a | n/a |
| Half-life (label) | n/a | n/a |
| Earliest approval on file (Drugs@FDA) | n/a | n/a |
| First generic approved | none | none |
| Generic labelers (NDC) | none listed | none listed |
| Pharmacy cost (NADAC, each one's most listed form; strengths differ) | $0.119 per gram (Tolnaftate 1% cream) | n/a |
| 12-month price change | +7% | n/a |
| Boxed warning | No | No |
| Shortage now | No current entry | No current entry |
| Recalls recorded | 0 | 0 |
| FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used) | 1,394 | 140 |
| DEA schedule | none | none |
Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)
What next?
- Alternatives to tolnaftate
- every medicine labeled for the same conditions