Drug interactions
Benzphetamine + Lorazepam
Severity: Minor
Benzphetamine and Lorazepam: 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
Benzphetamine is a stimulant anorectic that could partly offset the sedation caused by lorazepam. The net effect is unpredictable and not clinically well characterized.
What this interaction means in plain words
Benzphetamine and Lorazepam 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 pharmacodynamic effects on CNS arousal; no established pharmacokinetic mechanism.
What to do
No routine action is needed; watch for changes in anxiolytic or sedative 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 Lorazepam
Frequently asked questions
Can I take Benzphetamine with Lorazepam?
MediHelp rates the interaction as minor. Benzphetamine and Lorazepam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Benzphetamine is a stimulant anorectic that could partly offset the sedation caused by lorazepam. The net effect is unpredictable and not clinically well characterized.
How serious is the interaction between Benzphetamine and Lorazepam?
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 action is needed; watch for changes in anxiolytic or sedative response.
What other medicines interact with Lorazepam?
MediHelp also lists interactions of Lorazepam with, for example, Alfentanil, Alprazolam, Amobarbital. The full list is on the Lorazepam page.
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