Dopamine and Tetrabenazine Interaction
Drug interaction information between Dopamine and Tetrabenazine.
Dopamine and Tetrabenazine have a documented moderate interaction in FDA labeling.
FDA drug labeling documents a moderate-severity interaction between Dopamine and Tetrabenazine. This page displays the available source-record category and label text. The category is not an individual risk estimate or medication-combination direction.
How They Interact
Both drugs affect how dopamine works in the brain. Using them together can cause movement problems or serious nervous system reactions.
FDA Label Information
7.6 Neuroleptic Drugs The risk for Parkinsonism, NMS, and akathisia may be increased by concomitant use of tetrabenazine and dopamine antagonists or antipsychotics (e.g., chlorpromazine, haloperidol, olanzapine, risperidone, thioridazine, ziprasidone) [see Warnings and Precautions ( 5.4 , 5.5 , 5.6 )] .
Dopamine Also Interacts With
- Carbidopa/Levodopa moderate
- Deutetrabenazine moderate
- Digoxin moderate
- Tranylcypromine moderate
- Amitriptyline minor
Tetrabenazine Also Interacts With
- Deutetrabenazine major
- Valbenazine major
- Olanzapine moderate
- Risperidone moderate
- Ziprasidone moderate
Frequently Asked Questions
What SPL severity band is on file for Dopamine + Tetrabenazine?
Compiled FDA labeling labels this pair moderate. That is a source-record field, not an individual medication-combination decision.
Which drug in this pair has the larger labeled-interaction portfolio?
Dopamine has 28 labeled pairs on file vs Tetrabenazine's 16. In the moderate band specifically: Dopamine has 5 (also Carbidopa/Levodopa, Deutetrabenazine, Digoxin, Tranylcypromine); Tetrabenazine has 9 (also Olanzapine, Risperidone, Ziprasidone, Haloperidol).
What mechanism field is on file for Dopamine and Tetrabenazine?
Both drugs affect how dopamine works in the brain. Using them together can cause movement problems or serious nervous system reactions.
Tetrabenazine carries more major-labeled pairs than Dopamine
SPL source-record counts only. This page's band is moderate · classes on file: Dopamine (Inotropic / Vasopressor); Tetrabenazine (VMAT2 Inhibitor).
Tetrabenazine has 2 major-labeled pairs vs Dopamine's 0. This page itself is in the moderate band, not the major band.
0 major · 5 moderate · 23 minor · 28 total
- Other moderate peers for Dopamine
- Carbidopa/Levodopa
- Deutetrabenazine
- Digoxin
- Tranylcypromine
2 major · 9 moderate · 5 minor · 16 total
- Other moderate peers for Tetrabenazine
- Olanzapine
- Risperidone
- Ziprasidone
- Haloperidol
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. This registry does not provide individual medication-combination directions.
Read our methodology - how this data is sourced, computed, and verified.