Drug interactions
Clonazepam + Phendimetrazine
Severity: Minor
Clonazepam 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 clonazepam is a sedative, so their effects may partly oppose each other. No well-characterised clinically significant interaction has been established, and stimulants do not reliably reverse benzodiazepine-induced impairment.
What this interaction means in plain words
Clonazepam 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 effects (sympathomimetic stimulation versus GABAergic depression); no established pharmacokinetic mechanism.
What to do
No specific adjustment is needed; monitor for reduced clonazepam effect or increased anxiety and insomnia.
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 Clonazepam
- Calcium / magnesium / potassium / sodium oxybates + Clonazepam Contraindicated
- Clonazepam + Sodium oxybate Contraindicated
- Alfentanil + Clonazepam Major
- Alprazolam + Clonazepam Major
- Amobarbital + Clonazepam Major
- Belladonna and opium + Clonazepam Major
Frequently asked questions
Can I take Clonazepam with Phendimetrazine?
MediHelp rates the interaction as minor. Clonazepam 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 clonazepam is a sedative, so their effects may partly oppose each other. No well-characterised clinically significant interaction has been established, and stimulants do not reliably reverse benzodiazepine-induced impairment.
How serious is the interaction between Clonazepam 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 reduced clonazepam effect or increased anxiety and insomnia.
What other medicines interact with Clonazepam?
MediHelp also lists interactions of Clonazepam with, for example, Calcium / magnesium / potassium / sodium oxybates, Sodium oxybate, Alfentanil. The full list is on the Clonazepam page.
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