R — Drugs

Vitamin B12 (Methylcobalamin) and Rabeprazole Zinc (Zinc Sulfate/Gluconate) and Rabeprazole

Echinacea and Ramelteon Melatonin and Ramelteon St. John's Wort and Ramelteon

Iron and Ramipril Potassium and Ramipril Zinc and Ramipril

Magnesium and Ranolazine Potassium and Ranolazine

Probiotics and Rifaximin

Calcium and Risedronate Iron and Risedronate Magnesium and Risedronate

Berberine and Risperidone CoQ10 and Risperidone Goldenseal and Risperidone Melatonin and Risperidone Vitamin B12 (Cobalamin) and Risperidone

Iron and Ritalin Magnesium and Ritalin Omega-3 and Ritalin

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

Astaxanthin and Rivaroxaban Berberine and Rivaroxaban Collagen and Rivaroxaban Curcumin and Rivaroxaban Echinacea and Rivaroxaban Fish Oil and Rivaroxaban Garlic Extract and Rivaroxaban Ginkgo and Rivaroxaban Ginkgo Biloba and Rivaroxaban Goldenseal and Rivaroxaban Grapefruit and Rivaroxaban Kava and Rivaroxaban Milk Thistle and Rivaroxaban St. John's Wort and Rivaroxaban Turmeric and Rivaroxaban

Bacopa Monnieri and Rivastigmine Huperzine A and Rivastigmine

CoQ10 (Ubiquinone) and Rosuvastatin Curcumin and Rosuvastatin Ginkgo Biloba and Rosuvastatin Milk Thistle and Rosuvastatin St. John's Wort and Rosuvastatin Vitamin D and Rosuvastatin

Niacin (Vitamin B3) and rosuvastatin