Paroxetine
Also called Arketis, Aropax, Besitram and Casbol.
An SSRI antidepressant sold as Paxil, used for depression, anxiety, OCD and PTSD. Paroxetine (C19H20FNO3, 329 g/mol) is a selective serotonin reuptake inhibitor dispensed on prescription.
Sources and notes
- The introductionfrom sourceMoleculeFinder curated
- Other namesfrom sourcePubChem / 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. Paroxetine on the product labels we hold.
Medicines
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 carrying one or two hydrogens. Its spare pair of electrons can pick up a hydrogen ion, so an amine is a base.
From: standard chemistry.
One carbon bonded to two oxygens, each joined in turn to another carbon. It is the kind of link that joins sugars together: it stands up to bases, and acid splits it.
From: standard chemistry.
An oxygen bridging two carbons, written C-O-C. It accepts hydrogen bonds but has no hydrogen to give, and it is slow to react.
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
- C19H20FNO3
- Molecular weight
- 329.4 g/mol
- XLogP3octanol/water, log units
- 3.5
- Polar surface areatopological
- 39.7 Ų
- H-bond donors
- 1
- H-bond acceptors
- 5
- Rotatable bonds
- 4
- Complexity
- 402
Reported Hazard label (GHS), ECHA, HSDB via PubChem
Danger Irritant pictogram (GHS07), Health hazard pictogram (GHS08) and Environmental pictogram (GHS09); hazard statements H302, H315, H319, H335, H360, H361, H400, H410
Reported Licence
The US Food and Drug Administration licenses Paroxetine for human use (NDA 020031, authorized December 29, 1992), as Paxil. Drugs@FDA
Groups it belongs to
- Category
- Prescription medicine
- Family
- SSRIs
- Chemical groups
- Amines, Aromatics, Ethers, Halogenated
- Hazard classes
- Irritant, Health hazard, Environmental hazard, GHS Danger
C1CNC[C@H]([C@@H]1C2=CC=C(C=C2)F)COC3=CC4=C(C=C3)OCO4PubChem CID 43815 · Wikidata Q408471 · InChIKey AHOUBRCZNHFOSL-YOEHRIQHSA-N · Data refreshed
Questions
- What is Paroxetine?
- An SSRI antidepressant sold as Paxil, used for depression, anxiety, OCD and PTSD. Paroxetine (C19H20FNO3, 329 g/mol) is a selective serotonin reuptake inhibitor dispensed on prescription.
- How toxic is Paroxetine?
- Its GHS hazard label carries the signal word Danger and the hazard pictograms Irritant, Health hazard and Environmental. from source
- What kind of molecule is Paroxetine?
- Paroxetine has the formula C19H20FNO3 and a molecular weight of 329.4 g/mol. MoleculeFinder files it under SSRIs, in the prescription medicine group. from sourcefrom sourcefrom sourcefrom source
- Who licenses Paroxetine as a medicine?
- The US Food and Drug Administration licenses Paroxetine for human use (NDA 020031, authorized December 29, 1992), as Paxil. 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, HSDB 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