Drug interactions
Clonazepam + Orlistat
Severity: Moderate
Clonazepam and Orlistat: moderate 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
Orlistat reduces fat absorption and has been reported to lower the absorption of some antiepileptic drugs, with breakthrough seizures described. Data for clonazepam specifically are scarce, but loss of seizure control is the concern in epilepsy patients.
What this interaction means in plain words
Clonazepam and Orlistat can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Clonazepam belongs to Central Nervous System; Orlistat belongs to Miscellaneous.
Why it happens
Reduced intestinal absorption of lipophilic drugs due to orlistat's inhibition of fat digestion.
What to do
In patients with epilepsy, monitor seizure frequency after orlistat is started and consider separating doses by a few hours. Adjust the clonazepam dose if control worsens.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Clonazepam and Orlistat, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
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
Other interactions of Orlistat
- Cyclosporine + Orlistat Major
- Cyclosporin + Orlistat Major
- Orlistat + Triheptanoin Major
- Amiodarone + Orlistat Moderate
- Beta carotene + Orlistat Moderate
- Carbamazepine + Orlistat Moderate
Frequently asked questions
Can I take Clonazepam with Orlistat?
MediHelp rates the interaction as moderate. Clonazepam and Orlistat can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Orlistat reduces fat absorption and has been reported to lower the absorption of some antiepileptic drugs, with breakthrough seizures described. Data for clonazepam specifically are scarce, but loss of seizure control is the concern in epilepsy patients.
How serious is the interaction between Clonazepam and Orlistat?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: In patients with epilepsy, monitor seizure frequency after orlistat is started and consider separating doses by a few hours. Adjust the clonazepam dose if control worsens.
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.
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.
