Drug interactions
Phentolamine + Salsalate
Severity: Minor
Phentolamine and Salsalate: minor 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
Salsalate, a non-acetylated salicylate, may slightly reduce the antihypertensive or vasodilating effect of phentolamine. The effect is theoretical and usually small.
What this interaction means in plain words
Phentolamine and Salsalate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Reduced vasodilatory prostaglandin synthesis may partly oppose alpha-blocker induced vasodilation.
What to do
Monitor blood pressure during concurrent use and adjust the phentolamine dose if the response is blunted.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Phentolamine
Frequently asked questions
Can I take Phentolamine with Salsalate?
MediHelp rates the interaction as minor. Phentolamine and Salsalate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Salsalate, a non-acetylated salicylate, may slightly reduce the antihypertensive or vasodilating effect of phentolamine. The effect is theoretical and usually small.
How serious is the interaction between Phentolamine and Salsalate?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure during concurrent use and adjust the phentolamine dose if the response is blunted.
What other medicines interact with Phentolamine?
MediHelp also lists interactions of Phentolamine with, for example, Alfuzosin, Avanafil, Doxazosin. The full list is on the Phentolamine page.
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