moleculefinder

Terbinafine

C21H25N291.4 g/mol Calculated

Also called Lamisil at and Lamisil.

An antifungal, sold over the counter as Lamisil AT cream for athlete's foot and by prescription for nail infections.

Sources and notes
  • The introductionfrom sourceMoleculeFinder curated
  • Other namesfrom sourceWikidataIts English label and aliases on Wikidata.
  • Formula and weightcomputedPubChem
  • 2D drawingcomputedPubChem structure, drawn by RDKit
  • 3D modelfrom sourcePubChem 3D conformerLoaded after the page has painted, and on a phone only when you ask for it; the 2D drawing shows until it arrives.

Where you encounter it

Sold over the counter, without a prescription. Terbinafine on the product labels we hold.

Medicines

Lamisil ATAdded by the makerActive ingredient, 1%

Every product and list we hold

Sources and notes
  • The product labels and their strengthsfrom sourceDailyMed (FDA label)Each label lists the molecule as an ingredient, and an active ingredient at the strength shown.
  • How it gets therefrom sourceMoleculeFinder curatedEach mark is set by hand on our lists, never inferred; a label's ingredient is added by the maker. A row with no mark data says Not marked.
  • The line abovefrom sourceMoleculeFinder curatedFrom the group the molecule belongs to.

Explore its structure

Choose a part to light it up.

A nitrogen bonded to three carbons, with no hydrogen of its own. Its spare pair of electrons can still pick up a hydrogen ion, so a tertiary amine is a base.

From: standard chemistry.

Sources and notes
  • The drawingcomputedPubChem structure, drawn by RDKitThe page's one shipped drawing, with the chosen part lit in amber under it.
  • The partscomputedFound by ruleEach part is found by a chemical pattern, never picked by hand atom by atom; its words say where they come from.

Properties and sources

Calculated by PubChem

Molecular formula
C21H25N
Molecular weight
291.4 g/mol
XLogP3octanol/water, log units
5.6
Polar surface areatopological
3.2 Ų
H-bond donors
0
H-bond acceptors
1
Rotatable bonds
5
Complexity
428

Reported Hazard label (GHS), ECHA via PubChem

Warning Irritant pictogram (GHS07), Health hazard pictogram (GHS08) and Environmental pictogram (GHS09); hazard statements H315, H319, H335, H362, H373, H400, H410

Reported Licence

The US Food and Drug Administration licenses Terbinafine for human use (NDA 020980, authorized March 9, 1999). Drugs@FDA

Groups it belongs to

Category
OTC medicine
Family
Antifungals
Use
Skin and topical
Chemical groups
Aromatics
Elements
Nitrogen
Hazard classes
Irritant, Health hazard, Environmental hazard, GHS Warning
SMILESCC(C)(C)C#C/C=C/CN(C)CC1=CC=CC2=CC=CC=C21

PubChem CID 1549008 · Wikidata Q415259 · InChIKey DOMXUEMWDBAQBQ-WEVVVXLNSA-N · Data refreshed

How MoleculeFinder sources and labels its data

Questions
What is Terbinafine?
An antifungal, sold over the counter as Lamisil AT cream for athlete's foot and by prescription for nail infections.
How toxic is Terbinafine?
Its GHS hazard label carries the signal word Warning and the hazard pictograms Irritant, Health hazard and Environmental. from source
What kind of molecule is Terbinafine?
Terbinafine has the formula C21H25N and a molecular weight of 291.4 g/mol. MoleculeFinder files it under antifungals, in the OTC medicine group. from sourcefrom sourcefrom sourcefrom source
What else is Terbinafine called?
Terbinafine is also called Lamisil at and Lamisil. from source
Who licenses Terbinafine as a medicine?
The US Food and Drug Administration licenses Terbinafine for human use (NDA 020980, authorized March 9, 1999). from source
Sources and notes
  • Calculated valuescomputedPubChemComputed from the structure, so no laboratory conditions apply; complexity is PubChem's own structural score.
  • Hazard labelfrom sourceECHA via PubChemThe label combines these classifications.
  • ECHAfrom sourceAttributionSource: European Chemicals Agency, echa.europa.eu.
  • Licencefrom sourceDrugs@FDARead 2026-10-21.
  • Data refreshedfrom sourceMoleculeFinder2026-11-09