Caffeine

Soy contains the chemical genistein. Genistein might slow down how quickly the body gets rid of caffeine. This might increase the effects of caffeine.

Estrogens

• Oral contraceptive pill

• Estradiol

• Conjugated estrogens

• HRT combination products

Large amounts of soy might have some of the same effects as estrogen. Taking soy along with estrogen pills might decrease the effects of estrogen pills.

Levothyroxine

• Synthroid, others

Levothyroxine is used for low thyroid function. Soy seems to decrease how much levothyroxine is absorbed by the body in infants, but not adults. This might decrease the effects of levothyroxine in infants. The dose of levothyroxine may need to be adjusted if soy is being used regularly, such as in soy-based formulas. Otherwise, take levothyroxine and soy at least 4 hours apart.

Medications for diabetes

• Glyburide

• Glipizide

• Insulin

• Sitagliptin

• Empagliflozin

• Semaglutide

• Dapagliflozin

Soy might lower blood sugar levels. Taking soy along with diabetes medications might cause blood sugar to drop too low. Monitor your blood sugar closely.

Medications for high blood pressure

• Amlodipine

• Ramipril

• Perindopril

• Metoprolol

• Losartan

• Hydrochlorothiazide

Soy might lower blood pressure. Taking soy along with medications that lower blood pressure might cause blood pressure to go too low. Monitor your blood pressure closely.

Progesterone

Some research shows that taking soy milk along with progesterone might increase bone loss in females with osteoporosis.

Tamoxifen

• Soltamox

• Used for: breast cancer treatment and prevention

Tamoxifen affects the activity of estrogen in the body. Soy seems to also affect estrogen activity in the body. Taking soy with tamoxifen might change the effects of tamoxifen. Speak with a healthcare provider if you are taking tamoxifen.

• Jantoven

• Used for: blood thinning, clot prevention

Warfarin is used to slow blood clotting. Soy has been reported to decrease the effects of warfarin. This might increase the risk of clotting. Be sure to have your blood checked regularly. The dose of your warfarin might need to be changed.

Diuretics

• Diuretic drugs

Soy can increase urine production. The effects seem to be similar to those of "Diuretics. " Taking soy along with "Diuretics" might increase the risk for side effects.

Medications changed by the liver

• Omeprazole

• Esomeprazole

• Clopidogrel

• Diazepam

• Escitalopram

• Sertraline

Some medications are changed and broken down by the liver. Artichoke might change how quickly the liver breaks down these medications. If you are taking medications metabolised by the liver, monitor for any changes in how your medication affects you.

Artichoke might lower blood sugar levels. Taking artichoke along with diabetes medications might cause blood sugar to drop too low. Monitor your blood sugar closely.

Artichoke might lower blood pressure. Taking artichoke along with medications that lower blood pressure might cause blood pressure to go too low. Monitor your blood pressure closely.

Taurine might lower blood pressure. Taking taurine along with medications that lower blood pressure might cause blood pressure to go too low. Monitor your blood pressure closely.

Drying medications

• Anticholinergic drugs

European barberry can block a chemical in the body called acetylcholine, which has many important functions. Some medications, called anticholinergic drugs, also block acetylcholine. There is some concern that taking them together might increase the risk for confusion, blurred vision, increased sweating, and increased heart rate.

• Atorvastatin

• Simvastatin

• Amlodipine

• Diltiazem

• Cyclosporine

• Tacrolimus

• Midazolam

• Alprazolam

• Rivaroxaban

• Some HIV antiretrovirals

Some medications are changed and broken down by the liver. European barberry might change how quickly the liver breaks down these medications. If you are taking medications metabolised by the liver, monitor for any changes in how your medication affects you.

European barberry might lower blood sugar levels. Taking European barberry along with diabetes medications might cause blood sugar to drop too low. Monitor your blood sugar closely.

European barberry might lower blood pressure. Taking European barberry along with medications that lower blood pressure might cause blood pressure to go too low. Monitor your blood pressure closely.

Medications that slow blood clotting

• Heparin

• Rivaroxaban

• Apixaban

• Dabigatran

• Clopidogrel

European barberry might slow blood clotting. Taking European barberry along with medications that also slow blood clotting might increase the risk of bruising and bleeding.

Sedative medications

• Diazepam

• Alprazolam

• Temazepam

• Zolpidem

• Zopiclone

• Promethazine

European barberry might cause sleepiness and slowed breathing. Some medications, called sedatives, can also cause sleepiness and slowed breathing. Taking European barberry with sedative medications might cause breathing problems and/or too much sleepiness.

Various medications used for glaucoma, Alzheimer disease, and other conditions

• Cholinergic drugs

Some medications that are used for glaucoma, Alzheimer disease, and other conditions increase acetylcholine levels. But European barberry can block acetylcholine. Taking European barberry with these medications might decrease the effects of these drugs.

Losartan

• Cozaar

• Hyzaar

• Used for: high blood pressure, heart failure

Ginger can increase how much losartan the body absorbs. Taking ginger along with losartan might increase the effects and side effects of losartan.

Ginger might lower blood sugar levels. Taking ginger along with diabetes medications might cause blood sugar to drop too low. Monitor your blood sugar closely.

Ginger might slow blood clotting. Taking ginger along with medications that also slow blood clotting might increase the risk of bruising and bleeding.

Nifedipine

• Procardia

Taking ginger along with nifedipine might slow blood clotting and increase the chances of bruising and bleeding.

Phenprocoumon

• Marcoumar, others

Phenprocoumon is used to slow blood clotting. Ginger can also slow blood clotting. Taking ginger along with phenprocoumon might increase the chances of bruising and bleeding. Be sure to have your blood checked regularly. The dose of your phenprocoumon might need to be changed.

Warfarin is used to slow blood clotting. Ginger can also slow blood clotting. Taking ginger 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.