Drug interactions
Dopamine + Thiothixene
Severity: Moderate
Dopamine and Thiothixene: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Thiothixene is an antipsychotic with dopamine D2 and alpha-1 blocking properties that can oppose dopamine's effects. This can reduce the pressor response and may add to hypotension. The effect is predictable from receptor pharmacology.
What this interaction means in plain words
Dopamine and Thiothixene can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Pharmacodynamic antagonism at dopamine and alpha-1 adrenergic receptors.
What to do
Monitor blood pressure and titrate dopamine to the response; consider norepinephrine if the response is inadequate. Withhold thiothixene during acute circulatory support where feasible.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Dopamine
- Dihydroergotamine intranasal + Dopamine Contraindicated
- Dihydroergotamine + Dopamine Contraindicated
- Dopamine + Promethazine Contraindicated
- Dopamine + Selegiline transdermal Contraindicated
- Amitriptyline + Dopamine Major
- Clomipramine + Dopamine Major
Frequently asked questions
Can I take Dopamine with Thiothixene?
MediHelp rates the interaction as moderate. Dopamine and Thiothixene can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Thiothixene is an antipsychotic with dopamine D2 and alpha-1 blocking properties that can oppose dopamine's effects. This can reduce the pressor response and may add to hypotension. The effect is predictable from receptor pharmacology.
How serious is the interaction between Dopamine and Thiothixene?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and titrate dopamine to the response; consider norepinephrine if the response is inadequate. Withhold thiothixene during acute circulatory support where feasible.
What other medicines interact with Dopamine?
MediHelp also lists interactions of Dopamine with, for example, Dihydroergotamine intranasal, Dihydroergotamine, Promethazine. The full list is on the Dopamine page.
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