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WeedWize
Medication checker

Check your medications against cannabis

Type every prescription you take. The checker matches each name to a drug class in a pharmacist-reviewed reference and tells you what interacts, why, and what to do about it. It never says a combination is fine; it only reports what the reference covers.

  • tacrolimus

Type a generic or brand name and press Enter or a comma to add it. Nothing you type is stored on our servers; the list travels in the page address only when you share it.

1 interaction found, highest: High risk

Sorted highest risk first. Two medications from the same class are shown as one finding, because the interaction belongs to the class.

High riskYou typed: tacrolimus

Immunosuppressants

Why it happens
CBD is a strong CYP3A4 inhibitor. These drugs are cleared by CYP3A4 and sit inside a narrow therapeutic window.
What it means for you
Trough levels can climb into toxic territory, or fall unexpectedly if cannabis is stopped.
What Tiffany advises
If you have had a transplant or take one of these for an autoimmune condition, do not start cannabis without your transplant team involved.

Read the full page for immunosuppressants

This reference describes drug classes from aggregate published knowledge, reviewed by a pharmacist. It is education for a conversation with your own prescriber or pharmacist, who know your history and your doses.