Garlic can interact with your medications. Below is a list from WebMD. Please consult your doctors if you plan on using large dosages of garlic.
Saquinavir (Fortovase, Invirase) interacts with GARLIC Saquinavir is a medication taken for HIV. Garlic might decrease how much saquinavir goes into the blood. This might decrease the effects of saquinavir.
Isoniazid interacts with GARLIC. Garlic might reduce how much isoniazid the body absorbs. This might decrease how well isoniazid works.
Medications changed by the liver (Cytochrome P450 2E1 (CYP2E1) substrates) interact with GARLIC. Some medications are changed and broken down by the liver. Garlic might change how quickly the liver breaks down these medications. This could change the effects and side effects of these medications.
(Anticoagulant / Antiplatelet drugs)
Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs) interacts with GARLIC. Garlic might slow blood clotting. Taking garlic along with medications that also slow blood clotting might increase the risk of bruising and bleeding.
Warfarin (Coumadin) interacts with GARLIC. Warfarin is used to slow blood clotting. Garlic might increase the effects of warfarin. Taking garlic along with warfarin might increase the chances of bruising and bleeding. Be sure to have your blood checked regularly. The dose of your warfarin might need to be changed.
Medications for high blood pressure (Antihypertensive drugs) interacted with GARLIC. Garlic might lower blood pressure. Taking garlic along with medications that lower blood pressure might cause blood pressure to go too low. Monitor your blood pressure closely.
Atazanavir (Reyataz) interacts with GARLICGarlic might reduce how much atazanavir the body absorbs. This might decrease how well atazanavir works.
Medications for HIV/AIDS
Medications for HIV/AIDS (Protease Inhibitors) interact with GARLIC. Taking garlic might decrease the amount of HIV/AIDS medication the body can absorb. This could decrease the effects of some medications used for HIV/AIDS.
Medications for diabetes
Medications for diabetes (Antidiabetes drugs) interacted with GARLIC. Garlic might lower blood sugar levels. Taking garlic along with diabetes medications might cause blood sugar to drop too low. Monitor your blood sugar closely.
Tacrolimus (Prograf) interacts with GARLIC. Garlic might decrease how quickly the liver breaks down tacrolimus. Taking garlic with tacrolimus might increase the effects and side effects of tacrolimus.