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Drug interactions

Lorazepam + Sevelamer

Severity: Minor

Lorazepam and Sevelamer: 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

Sevelamer is a non-absorbed phosphate binder, and there is no established interaction that increases lorazepam elimination. A reduction in lorazepam absorption through binding is theoretically conceivable but not well documented.

What this interaction means in plain words

Lorazepam and Sevelamer have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Lorazepam belongs to Central Nervous System; Sevelamer belongs to Miscellaneous.

Evidence level: Low

Why it happens

No established mechanism; possible but unproven binding in the gut.

What to do

No specific action is needed; if reduced lorazepam effect is suspected, separate dosing by a few hours.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Lorazepam with Sevelamer?

MediHelp rates the interaction as minor. Lorazepam and Sevelamer have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Sevelamer is a non-absorbed phosphate binder, and there is no established interaction that increases lorazepam elimination. A reduction in lorazepam absorption through binding is theoretically conceivable but not well documented.

How serious is the interaction between Lorazepam and Sevelamer?

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 action is needed; if reduced lorazepam effect is suspected, separate dosing by a few hours.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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