Drug interactions
Benzphetamine + Bosentan
Severity: Minor
Benzphetamine and Bosentan: 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
Bosentan may modestly reduce benzphetamine exposure through CYP3A4 induction. The likely consequence is reduced anorectic effect, with limited safety concern.
What this interaction means in plain words
Benzphetamine and Bosentan 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
CYP3A4 induction by bosentan may increase benzphetamine clearance; the evidence is largely theoretical.
What to do
No routine adjustment is needed; monitor weight-loss response.
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 Bosentan
- Bosentan + Cyclosporin Contraindicated
- Bosentan + Cyclosporine Contraindicated
- Bosentan + Glyburide Contraindicated
- Bosentan + Glyburide-metformin Contraindicated
- Bosentan + Lonafarnib Contraindicated
- Bosentan + Sparsentan Contraindicated
Frequently asked questions
Can I take Benzphetamine with Bosentan?
MediHelp rates the interaction as minor. Benzphetamine and Bosentan have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Bosentan may modestly reduce benzphetamine exposure through CYP3A4 induction. The likely consequence is reduced anorectic effect, with limited safety concern.
How serious is the interaction between Benzphetamine and Bosentan?
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 routine adjustment is needed; monitor weight-loss response.
What other medicines interact with Bosentan?
MediHelp also lists interactions of Bosentan with, for example, Cyclosporin, Cyclosporine, Glyburide. The full list is on the Bosentan page.
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