Metoprolol
Also called Seloken and Lopresor.
A beta blocker selective for the heart, used for high blood pressure, angina and after a heart attack.
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. Metoprolol 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.
An O-H on a carbon that is not part of an aromatic ring, the group that makes a molecule an alcohol. It both gives and accepts hydrogen bonds, which helps the molecule mix with water.
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.
Compare a related molecule
Metoprolol
Propranolol
Propranolol blocks beta-1 and beta-2 receptors alike and enters the brain readily, while metoprolol aims mainly at the heart's beta-1 receptors.
Metoprolol vs Propranolol, side by sideSources and notes
- The sentencefrom sourceMoleculeFinder comparison notesThe pair's answer line.
- The two drawingscomputedPubChem structures, drawn by RDKitThe two drawings side by side.
Properties and sources
Calculated by PubChem
- Molecular formula
- C15H25NO3
- Molecular weight
- 267.36 g/mol
- XLogP3octanol/water, log units
- 1.9
- Polar surface areatopological
- 50.7 Ų
- H-bond donors
- 2
- H-bond acceptors
- 4
- Rotatable bonds
- 9
- Complexity
- 215
Reported Hazard label (GHS), ECHA via PubChem
Danger Flammable pictogram (GHS02), Irritant pictogram (GHS07), Health hazard pictogram (GHS08) and Environmental pictogram (GHS09); hazard statements H228, H302, H315, H319, H332, H335, H361, H411
Reported Licence
The US Food and Drug Administration licenses Metoprolol for human use (NDA 017963, authorized August 7, 1978). Drugs@FDA
Groups it belongs to
- Category
- Prescription medicine
- Family
- Beta blockers
- Elements
- Nitrogen
- Hazard classes
- Flammable, Irritant, Health hazard, Environmental hazard, GHS Danger
CC(C)NCC(COC1=CC=C(C=C1)CCOC)OPubChem CID 4171 · Wikidata Q409468 · InChIKey IUBSYMUCCVWXPE-UHFFFAOYSA-N · Data refreshed
Questions
- What is Metoprolol?
- A beta blocker selective for the heart, used for high blood pressure, angina and after a heart attack.
- How toxic is Metoprolol?
- Its GHS hazard label carries the signal word Danger and the hazard pictograms Flammable, Irritant, Health hazard and Environmental. from source
- What kind of molecule is Metoprolol?
- Metoprolol has the formula C15H25NO3 and a molecular weight of 267.36 g/mol. MoleculeFinder files it under beta blockers, in the prescription medicine group. from sourcefrom sourcefrom sourcefrom source
- What else is Metoprolol called?
- Metoprolol is also called Seloken and Lopresor. from source
- Who licenses Metoprolol as a medicine?
- The US Food and Drug Administration licenses Metoprolol for human use (NDA 017963, authorized August 7, 1978). 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
Keep exploring
Sources and notes
- Compared side by sidefrom sourceMoleculeFinder comparison notesA molecule we compare it with on its own page.
- The same kind of moleculefrom sourceMoleculeFinder curated groupsA structural neighbour in the same family or type group; the line names the group in its own words.
- The drawingscomputedPubChem structures, drawn by RDKit