← All peptides
Weight & Metabolic
Cognitive & Nootropic
Research Chemical

Tesofensine

Also known as: Tesofensine

Tesofensine is a triple monoamine reuptake inhibitor originally developed for neurodegenerative disease and later investigated as an anti-obesity drug. It produces appetite suppression and notable weight loss in clinical trials. Note: Tesofensine is a small-molecule triple monoamine reuptake inhibitor, not a peptide, but is sold alongside metabolic research compounds.

Last updated

Mechanism of Action

Tesofensine inhibits the presynaptic reuptake of dopamine, norepinephrine, and serotonin, raising synaptic concentrations of all three monoamines. The resulting enhancement of dopaminergic and noradrenergic tone in hypothalamic and reward circuits suppresses appetite and may increase resting energy expenditure. Its serotonergic and noradrenergic actions also contribute to satiety signaling and reduced food intake.

Half-life
Approximately 220 hours (around 9 days)
Administration Routes
oral
Research Status
Research Chemical

Reported Benefits

  • Significant appetite suppression
  • Substantial weight loss in clinical trials
  • May increase energy expenditure
  • Potential improvements in mood and alertness
  • Investigated for metabolic and obesity-related endpoints

Potential Side Effects

  • Increased heart rate and blood pressure
  • Insomnia and sleep disturbance
  • Dry mouth
  • Nausea and gastrointestinal upset
  • Mood changes, anxiety, or irritability

Common Dosing

Clinical obesity trials evaluated oral doses around 0.25 to 1.0 mg once daily; the long half-life means levels accumulate over time. For research use only and not personal medical advice.

The dosing information above is aggregated from research literature and anecdotal community reports for educational purposes only. It is not a recommendation, prescription, or medical advice. Peptides are sold as research chemicals only and are not intended for human use.

Contraindications

  • Cardiovascular disease, hypertension, or arrhythmias
  • Concurrent use of MAO inhibitors or other serotonergic agents
  • History of psychiatric disorders such as severe anxiety or mania
  • Tesofensine--a novel potent weight loss medicine. Evaluation of: Astrup A, Breum L, Jensen TJ, Kroustrup JP, Larsen TM. Effect of tesofensine on bodyweight loss, body composition, and quality of life in obese patients: a randomised, double-blind, placebo-controlled trial. Lancet 2008;372:1906-13

    2009

    View
  • Effect of tesofensine on bodyweight loss, body composition, and quality of life in obese patients: a randomised, double-blind, placebo-controlled trial

    2008

    Note: The Lancet published an expression of concern about this paper in 2013.

    View
  • Weight loss produced by tesofensine in patients with Parkinson's or Alzheimer's disease

    2008

    View
  • The effect of the triple monoamine reuptake inhibitor tesofensine on energy metabolism and appetite in overweight and moderately obese men

    2010

    View
  • Randomized controlled trial of Tesomet for weight loss in hypothalamic obesity

    2022

    View

It blocks reuptake of dopamine, norepinephrine, and serotonin, raising their levels in brain circuits that control appetite. This suppresses hunger and may modestly increase energy expenditure.

No. Despite promising trial results, tesofensine is not approved for obesity. It remains an investigational compound, and ongoing studies continue to evaluate its safety and efficacy.

PeptideChat is for educational and research purposes only. Nothing on this site constitutes medical advice. Peptides are sold as research chemicals only and are not intended for human use. These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. PeptideChat is an independent educational resource — not a pharmacy, compounding, or 503A/503B outsourcing facility — and does not sell products or provide medical advice.