Peptide Decoding
New?New to peptides?Start here →
Decoding

Tesofensine_Dosage, benefits & legal status

Also known as NS2330

Published July 22, 2026 · Updated October 5, 2026

An experimental appetite-suppressing pill with strong weight-loss numbers.

Weight lossTriple reuptake inhibitor (not a peptide)InvestigationalNot a peptide
Common vial size0.5 mg
Dose0.25 up to 0.5 mg per day
FrequencyDaily
RouteBy mouth (oral)
StatusInvestigational
CycledContinuous daily dosing, studied to 24 weeks

Common vial size is what vendors typically sell, not a recommendation. Enter your own vial in the calculator.

See how this dose compares across the library →

01

What is Tesofensine?

Plain language first. The technical label stays, but it never stands alone.

Overview

It acts on the brain's appetite and reward system like a stimulant, to suppress hunger. That also means more risk to the heart.

The technical version

Tesofensine is a small molecule, not a peptide, that blocks the reuptake of three brain chemicals: dopamine, noradrenaline, and serotonin.

What it's used for

An experimental appetite-suppressing pill with strong weight-loss numbers.

02

How does Tesofensine work?

What it does in the body, and where.

Tesofensine is a stimulant-class small molecule, not a peptide. It was originally developed for Parkinson's disease, and the weight loss was noticed as a side effect.

  1. 01
    It blocks reuptake of dopamine, noradrenaline and serotonin
    Keeping all three circulating longer in the brain, which suppresses appetite.
  2. 02
    Appetite falls, and so does the reward from eating
    This works on the wanting rather than on fullness, which is a different mechanism from everything else in this category.
  3. 03
    Blood pressure and heart rate rise
    The predictable cost of a triple reuptake inhibitor, and the reason its regulatory path has been difficult.
Pathway
THE COMPOUND
Tesofensine
ACTS ON
Reuptake of three brain chemicals
RESULT
Appetite drops
RESULT
Heart rate and blood pressure rise

A schematic of the compound's mechanism, not a diagnostic image.

03

What else is it used for?

Each use below carries its own evidence level. Approved means regulators have cleared it for that purpose. Investigational means it is in trials. Early research means it is being studied and is not established.

  • Appetite suppression and weight lossInvestigational
  • Parkinson's and Alzheimer's disease, which is what it was originally developed for before those trials failedInvestigational

The published record

Research index

69

Papers and trials about Tesofensine

Searched: tesofensine, NS2330.

51 papers tagged human · 23 not reviews or lab · 11 clinical trial publications

14 registered trials · 5 with posted results

Furthest stage reached: Phase 2, results posted

Compare this against the whole library →

Prohibited in competition. S6.B Specified stimulants (tesofensine named).Regulators
In animals20
In the lab0
Reviews15
Senior author shareSpread across many groups

Evidence summary

Counted from Europe PMC indexing, not read by a person; a human tag can land on reviews, commentary or lab papers; clinical trial publications is the narrower count.

Tesofensine vial rendering
Compound field notes

At a glance

Four things to know about Tesofensine

01

Evidence

Investigational

02

Category

Weight loss and metabolic

03

Common vial

0.5 mg

04

Half-life

About 9 days

04

How much, and do you cycle it?

The range, and whether you take breaks.

0.25 up to 0.5 mg per day, daily. Continuous daily dosing, studied to 24 weeks Human study

Given daily without breaks in the trials. The phase 2 study ran 24 weeks at up to 1 mg daily, with an extension to 48 weeks. No cycling was used or tested.

Source: Astrup et al., TIPO-1: 24 weeks daily tesofensine (Lancet 2008;372:1906-13)

Compare this against the whole library →

05

How long does it stay in the body?

The half-life, and where the figure comes from.

About 9 daysTrial protocol

An active metabolite lasts far longer, around 16 days, so the compound keeps working well past the parent figure.

Source: Saniona clinical protocol NCT03488719. Bara-Jimenez W, et al. Mov Disord 2004;19(10):1183-6

You can compare this against the whole library to see where it sits.

06

What does it cost?

Typical dose and cost, in plain numbers.

The products priced here are not injected

The listed products are taken by mouth (oral).

Cost per month
—
Cost per dose
—
Typical dose
250 mcg–500 mcg / dayHuman study
What it costs

Tesofensine starts at $50.00 across 43 vendors, typically $397.90 per mg.

59 listings, last read Oct 24, 2026. Shipping and card fees are not included.

See all 59 listings →
07

How do you store it?

Before mixing, and after.

Room temperature. Cool, dry, out of light.

Tesofensine is taken as a pill or capsule. Keep it in its original container at room temperature, away from heat, humidity, and direct sun. No fridge or mixing needed. Check the expiration date on the bottle.

08

What are the side effects and cautions?

Known cautions and warnings for this compound.

Who should avoid it

Check these before anything else.
  • Uncontrolled high blood pressure
  • Heart rhythm problems
  • A history of psychiatric conditions
  • Pregnancy

Stop and get help

These are emergencies. Seek care.
  • A racing or pounding heartbeat
  • Severe agitation, panic, or a marked change in mood
  • Chest discomfort
  • Signs of an allergic reaction such as face or throat swelling, hives, or trouble breathing

Common effects

Expected, and usually mild.
  • Dry mouth and difficulty sleeping
  • Constipation, diarrhea, and nausea
  • A rise in blood pressure and heart rate, which is the main safety concern

Where this page says nothing is established, that means nobody has studied it, not that a compound is safe.

09

Is Tesofensine approved?

And where the numbers on this page come from.

No. Tesofensine is not approved anywhere and is currently in company-run clinical trials. There is no legal route to obtain it outside a trial.

  • Approval status
    Investigational
  • Route
    By mouth (oral)
  • Checked
    22 July 2026
  • Dose
    From published human studies. Not approved by a regulator for this dose.
  • Vial size
    From what vendors typically list; not a recommendation.
  • Sources
    None traced yet.

What has happened recently

We have not yet written a full regulatory note for this compound. The status above is current as of the date shown.

What regulators say

From official documents

Guides for this compound

Sources

No primary source has been traced for this compound yet. Treat everything on this page as unverified until one is. How we grade evidence

Beyond these, 69 records are indexed. Browse the records