Drug interactions
Moxisylyte + Prazosin
Severity: Moderate
Moxisylyte and Prazosin: 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
Both drugs block alpha-1 adrenergic receptors and lower vascular tone. Taken together they can produce excessive blood pressure reduction, with dizziness, orthostatic hypotension and fainting.
What this interaction means in plain words
Moxisylyte and Prazosin 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
Additive pharmacodynamic alpha-adrenergic blockade causing vasodilation.
What to do
Monitor blood pressure and orthostatic symptoms, especially when starting or increasing either drug. Reduce the dose of one agent if symptomatic hypotension occurs.
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 Prazosin
- Alfuzosin + Prazosin Major
- Amifostine + Prazosin Major
- Avanafil + Prazosin Major
- Doxazosin + Prazosin Major
- Dutasteride-tamsulosin + Prazosin Major
- Phenoxybenzamine + Prazosin Major
Frequently asked questions
Can I take Moxisylyte with Prazosin?
MediHelp rates the interaction as moderate. Moxisylyte and Prazosin 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. Both drugs block alpha-1 adrenergic receptors and lower vascular tone. Taken together they can produce excessive blood pressure reduction, with dizziness, orthostatic hypotension and fainting.
How serious is the interaction between Moxisylyte and Prazosin?
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 orthostatic symptoms, especially when starting or increasing either drug. Reduce the dose of one agent if symptomatic hypotension occurs.
What other medicines interact with Prazosin?
MediHelp also lists interactions of Prazosin with, for example, Alfuzosin, Amifostine, Avanafil. The full list is on the Prazosin page.
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