Rifampin (rif ’ am pin) Rifadin, Rofact (CAN) PREGNANCY CATEGORY C Drug Classes Antibiotic Antituberculotic (first-line) Therapeutic Actions Inhibits DNA-dependent RNA polymerase activity in susceptible bacterial cells. Indications Treatment of pulmonary…

Ribavirin (rye ba vye’ rin) Copegus, Rebetol, Ribasphere, Virazole PREGNANCY CATEGORY X Drug Class Antiviral Therapeutic Actions Antiviral activity against RSV, influenza virus, hepatitis C virus, and HSV; mechanism of…

Rifabutin

Repaglinide (re pag’ lah nyde) GlucoNorm (CAN), Prandin PREGNANCY CATEGORY C Drug Classes Antidiabetic Meglitinide Therapeutic Actions Closes potassium channels in the beta cells of the pancreas, which causes the…

Regorafenib

Raxibacumab

Rasagiline (raz ah’ gah leen) Azilect PREGNANCY CATEGORY C Drug Classes Antiparkinsonian MAO type B inhibitor Therapeutic Actions Inhibits MAO type B (found mostly in the CNS), leading to increased…

Rasburicase

Ranolazine (ran oh’ lah zeen) RanexaDNC PREGNANCY CATEGORY C Drug Classes Antianginal Piperazineacetamide Therapeutic Actions Antianginal, anti-ischemic. Mechanism of action is not known. Prolongs the QT interval; does not decrease…

Ranitidine Hydrochloride (ra nye’ te deen) Apo-Ranitidine (CAN), CO Ranitidine (CAN), Gen-Ranitidine (CAN), Novo-Ranidine (CAN), Nu-Ranit (CAN), PMS-Ranitidine (CAN), ratio-Ranitidine (CAN), Zantac, Zantac EFFERdose, Zantac 75, Zantac 150 PREGNANCY CATEGORY…