Drug Interaction Checker

• Free online drug interaction checker covering common drug classes such as anticoagulants, statins, antihypertensives, antibiotics, antidepressants and NSAIDs, with search by drug name in English or Chinese
• Automatically rates interaction severity (contraindicated / major / moderate / minor) and provides the effect, mechanism and clinical recommendation
• Each result expands to show the details, and can be copied individually or as a full summary with one click
• All checks run locally in your browser — nothing is uploaded

1. Open the tool page — no download or installation needed
2. Type a drug name into the search box (in English or Chinese) and click "Add" to select it from the filtered results
3. Once at least two drugs are selected, the interactions and severity statistics update automatically — there is no check button to press
4. Expand any result card to view the effect, mechanism and clinical recommendation, and copy a single item or all results as needed

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — nothing is uploaded
• At least two drugs must be selected for interactions to appear, and up to eight drugs can be checked at once

Free online drug interaction checker tool. Search and check interactions between common medications including anticoagulants, statins, antihypertensives, antibiotics, antidepressants, and more. Get severity ratings and clinical recommendations.

Open the tool page — no download or installation needed Type a drug name into the search box (in English or Chinese) and click "Add" to select it from the filtered results Once at least two drugs are selected, the interactions and severity statistics update automatically — there is no check button to press Expand any result card to view the effect, mechanism and clinical recommendation, and copy a single item or all results as needed

This tool is completely free and requires no sign-up Everything runs locally in your browser — nothing is uploaded At least two drugs must be selected for interactions to appear, and up to eight drugs can be checked at once

Yes, Drug Interaction Checker is completely free. No download or installation required — it runs right in your browser.