D — Drugs

Berberine and Dabigatran Curcumin and Dabigatran Echinacea and Dabigatran Fish Oil and Dabigatran Garlic Extract and Dabigatran Ginkgo and Dabigatran Ginkgo Biloba and Dabigatran Goldenseal and Dabigatran Grapefruit and Dabigatran Kava and Dabigatran Milk Thistle and Dabigatran St. John's Wort and Dabigatran Turmeric and Dabigatran Vitamin E and Dabigatran

Berberine and Desipramine Goldenseal and Desipramine

Chromium and Dexamethasone Vitamin D and Dexamethasone

Berberine and Dextromethorphan Goldenseal and Dextromethorphan

Fat-soluble vitamins (A, D, E, K) and Diatomaceous Earth Vitamin B12 (oral supplements) and Diatomaceous Earth

Gotu Kola and Diazepam

Curcumin and Diclofenac Ginkgo Biloba and Diclofenac Milk Thistle and Diclofenac St. John's Wort and Diclofenac

CoQ10 and Digoxin Pectin and Digoxin Potassium and Digoxin

Ashwagandha and digoxin Asian Ginseng and digoxin Calcium (intravenous) and digoxin Chan Su and digoxin Dashen (Danshen) and digoxin Kaolin-pectin and digoxin Meals high in bran (dietary fiber) and digoxin Siberian Ginseng and digoxin St. John's Wort and digoxin Thyroid supplements and digoxin

Berberine and Diltiazem Curcumin and Diltiazem Echinacea and Diltiazem Garlic Extract and Diltiazem Ginkgo Biloba and Diltiazem Goldenseal and Diltiazem Grapefruit and Diltiazem Grapefruit Juice and Diltiazem Kava and Diltiazem Magnesium and Diltiazem Milk Thistle and Diltiazem St. John's Wort and Diltiazem

St. John's Wort and Direct-Acting Oral Anticoagulants (DOACs) — excluding Dabigatran

Quercetin and Docetaxel

Calcium and Dolutegravir Iron and Dolutegravir Zinc and Dolutegravir

Bacopa Monnieri and Donepezil Huperzine A and Donepezil Phosphatidylserine and Donepezil Sage Extract and Donepezil

PQQ (Pyrroloquinoline Quinone) and Doxorubicin Vitamin C high dose and Doxorubicin Vitamin E high dose and Doxorubicin

Biotin and Doxycycline Calcium and Doxycycline Iron and Doxycycline Magnesium and Doxycycline Probiotics and Doxycycline Zinc and Doxycycline

Aluminum (antacids/supplements) and doxycycline Aluminum-containing antacids and doxycycline Bismuth Subsalicylate (Pepto-Bismol) and doxycycline Bismuth subsalicylate and doxycycline Calcium (antacids/supplements) and doxycycline Calcium-containing antacids and doxycycline Iron (supplements) and doxycycline Iron supplements and doxycycline Magnesium (antacids/supplements) and doxycycline Magnesium-containing antacids and doxycycline

Caffeine and duloxetine kava (Piper methysticum) and duloxetine Tryptophan and duloxetine

5-HTP and Duloxetine Berberine and Duloxetine Echinacea and Duloxetine Goldenseal and Duloxetine St Johns Wort and Duloxetine St. John's Wort and Duloxetine