sibutramine Research Reference

Catalog classification, reference sizes, lab math links, and source-backed data. Educational use only — not medical advice.

Researched for: PepTools vendor-neutral scientific reference catalog

Centrally acting anti-obesity agent; norepinephrine, serotonin, and dopamine reuptake inhibitor anorectic; U.S. Schedule IV controlled substance compound Reference approved

Also known as: Meridia, Reductil, sibutramine hydrochloride, sibutramine hydrochloride monohydrate

Quick Facts

Reference Sizes
5 mg capsule, 10 mg capsule, 15 mg capsule
Components
sibutramine active moiety + sibutramine hydrochloride monohydrate
Storage
Historical FDA-labeled product storage: 25°C, with permitted excursions to 15-30°C; protect capsules from heat and moisture and dispense in a tight, light-resistant container.

Blend Components

This entry is a multi-compound blend. Each component can be opened individually in the reconstitution calculator.

Component
sibutramine active moiety
Calculator Profile
Component
sibutramine hydrochloride monohydrate
Calculator Profile
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Component amounts shown are arithmetic starters based on equal distribution. Edit values in the calculator before saving.

Catalog Description

Sibutramine is a tertiary amino compound and centrally acting anti-obesity agent. Its pharmacologic effects are mediated primarily by active mono- and di-desmethyl metabolites that inhibit norepinephrine and serotonin reuptake and, to a lesser extent, dopamine reuptake. The parent drug was formerly marketed in the United States as Meridia and in Europe as Reductil and related names. The U.S. approval was withdrawn on December 21, 2010, and European marketing authorisations were suspended in 2010 following safety evaluations concerning cardiovascular events.

Catalog descriptions reflect research context only. Not a medical claim or treatment recommendation.

Research Profile

Half-Life
Parent sibutramine approximately 1.1 hours; active metabolites M1 and M2 approximately 14 and 16 hours, respectively, after oral administration.
Onset
Historical pharmacokinetic reference: parent-drug Tmax approximately 1.2 hours after oral administration; active metabolites reached peak plasma concentrations within approximately 3 to 4 hours.
Administration Routes (Research)
oral

Reported Research Effects

Data source: Primary literature, regulator records, trial registries, and identity-specific evidence search

Reflects preclinical/research literature context only. Not a medical claim, dosing instruction, or treatment recommendation.

Research Notes

Historical clinical-reference dosing in the FDA label was 5, 10, or 15 mg once daily, with 10 mg as the labeled starting dose and doses above 15 mg/day not recommended. These values are provided only as historical study and labeling information, not as current treatment guidance. FDA requested voluntary U.S. market withdrawal in October 2010, and approval was withdrawn on December 21, 2010. EMA concluded in 2010 that the benefits of sibutramine-containing medicines did not outweigh their risks and recommended suspension of European marketing authorisations.

Supplementary research context only. Not medical advice or a treatment recommendation.

Registry Identifiers

CAS RN 106650-56-0; PubChem CID 5210; molecular formula C17H26ClN; molecular weight 279.8 g/mol; IUPAC name 1-[1-(4-chlorophenyl)cyclobutyl]-N,N,3-trimethylbutan-1-amine; InChIKey UNKXFIYQGJQOQW-UHFFFAOYSA-N

Sources

Sibutramine
https://pubchem.ncbi.nlm.nih.gov/compound/sibutramine (accessed 2026-09-13)
MERIDIA (sibutramine hydrochloride monohydrate) FDA-approved labeling, 2010
https://www.accessdata.fda.gov/drugsatfda_docs/label/2010/020632s034s035lbl.pdf (accessed 2026-09-13)
Sibutramine - referral
https://www.ema.europa.eu/en/medicines/human/referrals/sibutramine (accessed 2026-09-13)
Questions and Answers about FDA’s Initiative Against Contaminated Weight Loss Products: What is sibutramine and what are the associated risks?
https://www.fda.gov/drugs/frequently-asked-questions-popular-topics/questions-and-answers-about-fdas-initiative-against-contaminated-weight-loss-products (accessed 2026-09-13)

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Related Research Articles

Published articles on this site that mention sibutramine or one of its catalog aliases.

Related Research Tools

Research Use Only. All content is for educational and research reference only. Not medical advice, a treatment recommendation, or guidance on human use. Compounds are not FDA-approved drugs unless specifically noted.

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