Interaction Checker

Garlic (supplement) interactions

Garlic supplements can thin the blood slightly and interfere with at least one HIV drug.

Garlic (supplement) has 29 documented interactions across the FDA labels and fact sheets we index: 0 major, 7 moderate, 22 minor, and 0 where a label reports no significant interaction. Each entry below quotes the sentence behind it. This herbal and supplement page is a starting point, not a verdict for your situation.

Interactions from the label

Moderate interactions (7)

  • AtazanavirantiretroviralModerate

    Garlic supplements may reduce the effectiveness of some HIV protease inhibitors. (NCCIH, Garlic)

  • DarunavirantiretroviralModerate

    Garlic supplements may reduce the effectiveness of some HIV protease inhibitors. (NCCIH, Garlic)

  • Darunavir and cobicistatantiretroviralModerate

    Garlic supplements may reduce the effectiveness of some HIV protease inhibitors. (NCCIH, Garlic)

  • FosamprenavirantiretroviralModerate

    Garlic supplements may reduce the effectiveness of some HIV protease inhibitors. (NCCIH, Garlic)

  • Lopinavir and ritonavirantiretroviralModerate

    Garlic supplements may reduce the effectiveness of some HIV protease inhibitors. (NCCIH, Garlic)

  • RitonavirantiretroviralModerate

    Garlic supplements may reduce the effectiveness of some HIV protease inhibitors. (NCCIH, Garlic)

  • WarfarinanticoagulantModerate

    Some botanicals may cause bleeding events when taken alone (e.g., garlic and Ginkgo biloba) and may have anticoagulant, antiplatelet, and/or fibrinolytic properties. (Warfarin label, Drug interactions)

Minor mentions (22)

  • ApixabananticoagulantMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • ArgatrobananticoagulantMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • AspirinNSAIDMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Aspirin and dipyridamoleantiplatelet agentMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • BivalirudinanticoagulantMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Butalbital, aspirin, and caffeinebarbiturateMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Butalbital, aspirin, caffeine, and codeinebarbiturateMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Cangrelorantiplatelet agentMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Cilostazolantiplatelet agentMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Clopidogrelantiplatelet agentMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • DabigatrananticoagulantMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Dipyridamoleantiplatelet agentMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • EdoxabananticoagulantMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • EnoxaparinanticoagulantMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Eptifibatideantiplatelet agentMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • FondaparinuxanticoagulantMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • HeparinanticoagulantMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Orphenadrine, aspirin, and caffeinemuscle relaxantMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Prasugrelantiplatelet agentMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • RivaroxabananticoagulantMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Ticagrelorantiplatelet agentMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • Tirofibanantiplatelet agentMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

Check Garlic (supplement) against everything you take. Add your full list; every pair is checked at once.

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Not medical advice. Severity reflects the label's wording, not your circumstances. A "major" flag can be routine under supervision and a "minor" one can matter at high doses. Ask a pharmacist.