Medicine guide

NITOMAN

As listed in the register: NITOMAN

25 mg · tablet

  • Prescription only
  • Pain, sleep, mood, epilepsy and the brain
Active substance
Tetrabenazine
Made by
Bausch Health, Canada Inc.

Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.

What it is for

Medicine groupPain, sleep, mood, epilepsy and the brainN07XX06

Mediclarum has not yet retrieved and stored the official label for this product, so none of its text is shown here. Open the official leaflet

How it works

From the US prescribing label for the same active substance (Tetrabenazine). It describes the substance, not this exact product.

The precise mechanism by which tetrabenazine exerts its anti-chorea effects is unknown but is believed to be related to its effect as a reversible depletor of monoamines (such as dopamine, serotonin, norepinephrine, and histamine) from nerve terminals.

Tetrabenazine reversibly inhibits the human vesicular monoamine transporter type 2 (VMAT2) (K i ≈ 100 nM), resulting in decreased uptake of monoamines into synaptic vesicles and depletion of monoamine stores.

Half-life17.5 h
Mostly cleared after≈ 4 daysfive half-lives — our arithmetic
How the body breaks it down

After oral administration, tetrabenazine is extensively hepatically metabolized, and the metabolites are primarily renally eliminated. α-HTBZ, β-HTBZ and 9-desmethyl-β-DHTBZ have half-lives of 7 hours, 5 hours and 12 hours respectively.

How it leaves the body

In a mass balance study in 6 healthy volunteers, approximately 75% of the dose was excreted in the urine, and fecal recovery accounted for approximately 7 to 16% of the dose.

With food

Food Effects The effects of food on the bioavailability of tetrabenazine were studied in subjects administered a single dose with and without food.

Quoted from the prescribing label, sections “Mechanism of Action” and “Pharmacokinetics”. DailyMed · 2025-10-13

Safety of the active substance

From the US prescribing label for the same active substance (Tetrabenazine). It describes the substance, not this exact product.

Serious warning

WARNING: DEPRESSION AND SUICIDALITY Tetrabenazine can increase the risk of depression and suicidal thoughts and behavior (suicidality) in patients with Huntington’s disease.

Must not be used by
  • Tetrabenazine tablets are contraindicated in patients: Who are actively suicidal, or in patients with untreated or inadequately treated depression [see Warnings and Precautions ( 5.1 )].
  • With hepatic impairment [see Use in Specific Populations ( 8.6 ), Clinical Pharmacology ( 12.3 )].
  • Taking monoamine oxidase inhibitors (MAOIs).
  • Tetrabenazine tablets should not be used in combination with an MAOI, or within a minimum of 14 days of discontinuing therapy with an MAOI [see Drug Interactions ( 7.3 )].
Most common side effects

The most common adverse reactions (over 10%, and at least 5% greater than placebo) were sedation/somnolence, fatigue, insomnia, depression, akathisia, anxiety/anxiety aggravated, and nausea.

Quoted from the US prescribing label for the same active substance. Your own pack’s leaflet is the authority for your product. DailyMed

Same active substance, strength and form in other countries

Matched on active substance, strength and kind of form only. This is not a statement that the products are equivalent or interchangeable: other ingredients, release and approved uses can differ — ask a pharmacist before swapping.

Medicine passport: one printable page to show a pharmacist abroad

SwitzerlandNo exact match for this strength and form

Details

Made byBausch Health, Canada Inc.
Active substanceTetrabenazine
Used inPain, sleep, mood, epilepsy and the brain
Strength25 mg
Formtablet
ClassificationN07XX06 · Pain, sleep, mood, epilepsy and the brain
Routeoral
Dispensing (as stated by the register)PRESCRIPTION
StatusMarketed
MarketedYes, according to the register
DIN02199270
DPD drug code42959

Source: Drug Product Database · 2026-09-30 · not reviewed by a clinician

Contains information licensed under the Open Government Licence – Canada. Reuse terms: Open Government Licence – Canada.

Same active substance

These contain the same substance. That does not mean one can replace another — ask a pharmacist.