moleculefinder

Cyproheptadine

C21H21N287.4 g/mol Calculated

Also called Axoprol, Glutodina and Dihexazin.

A sedating antihistamine also used for appetite stimulation and to prevent migraine. Cyproheptadine (C21H21N, 287 g/mol) is an antihistamine dispensed on prescription.

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

Dispensed on prescription, not sold on a shelf.

Sources and notes
  • 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
C21H21N
Molecular weight
287.4 g/mol
XLogP3octanol/water, log units
4.7
Polar surface areatopological
3.2 Ų
H-bond donors
0
H-bond acceptors
1
Rotatable bonds
0
Complexity
423

Reported Licence

The US Food and Drug Administration licenses Cyproheptadine for human use (ANDA 088212, authorized May 26, 1983). Drugs@FDA

Groups it belongs to

Category
Prescription medicine
Family
Antihistamines
Chemical groups
Aromatics
Elements
Nitrogen
SMILESCN1CCC(=C2C3=CC=CC=C3C=CC4=CC=CC=C42)CC1

PubChem CID 2913 · Wikidata Q417884 · InChIKey JJCFRYNCJDLXIK-UHFFFAOYSA-N · Data refreshed

How MoleculeFinder sources and labels its data

Questions
What is Cyproheptadine?
A sedating antihistamine also used for appetite stimulation and to prevent migraine. Cyproheptadine (C21H21N, 287 g/mol) is an antihistamine dispensed on prescription.
What kind of molecule is Cyproheptadine?
Cyproheptadine has the formula C21H21N and a molecular weight of 287.4 g/mol. MoleculeFinder files it under antihistamines, in the prescription medicine group. from sourcefrom sourcefrom sourcefrom source
What else is Cyproheptadine called?
Cyproheptadine is also called Axoprol, Glutodina and Dihexazin. from source
Who licenses Cyproheptadine as a medicine?
The US Food and Drug Administration licenses Cyproheptadine for human use (ANDA 088212, authorized May 26, 1983). from source
Sources and notes
  • Calculated valuescomputedPubChemComputed from the structure, so no laboratory conditions apply; complexity is PubChem's own structural score.
  • Licencefrom sourceDrugs@FDARead 2026-10-21.
  • Data refreshedfrom sourceMoleculeFinder2026-11-09

Keep exploring

Both carry an aromatic ring.KetotifenC19H19NOS
Sources and notes
  • Similar in shapecomputedRDKit Morgan/TanimotoNeighbours by structural fingerprint; the sentence names the chemical groups the two share.
  • The drawingscomputedPubChem structures, drawn by RDKit