Drug interactions
Alprazolam + Phendimetrazine
Severity: Minor
Alprazolam and Phendimetrazine: 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
Phendimetrazine is a stimulant anorectic and alprazolam is a sedative, so their effects may partially oppose each other. There is no well established pharmacokinetic interaction and the clinical effect is unpredictable.
What this interaction means in plain words
Alprazolam and Phendimetrazine 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
Opposing CNS stimulant and depressant pharmacodynamic effects; no established mechanism of significant interaction.
What to do
No specific adjustment is needed; monitor for altered sedation or anxiety control and for the efficacy of each drug.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to see why Alprazolam and Phendimetrazine interact, what to do about it, and the sources.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Alprazolam
- Alprazolam + Calcium / magnesium / potassium / sodium oxybates Contraindicated
- Alprazolam + Itraconazole Contraindicated
- Alprazolam + Ketoconazole Contraindicated
- Alprazolam + Levoketoconazole Contraindicated
- Alprazolam + Sodium oxybate Contraindicated
- Alfentanil + Alprazolam Major
Frequently asked questions
Can I take Alprazolam with Phendimetrazine?
MediHelp rates the interaction as minor. Alprazolam and Phendimetrazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Phendimetrazine is a stimulant anorectic and alprazolam is a sedative, so their effects may partially oppose each other. There is no well established pharmacokinetic interaction and the clinical effect is unpredictable.
How serious is the interaction between Alprazolam and Phendimetrazine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No specific adjustment is needed; monitor for altered sedation or anxiety control and for the efficacy of each drug.
What other medicines interact with Alprazolam?
MediHelp also lists interactions of Alprazolam with, for example, Calcium / magnesium / potassium / sodium oxybates, Itraconazole, Ketoconazole. The full list is on the Alprazolam page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
