Prilosec

Primaquine

Primazuine Phosphate

Primidone

Prinzide

Pristiq

Probalan

Probenecid

Prograf

Proguanil

Prolixin

Promacta

Promethazine and Dextromethorphan

Promethazine DM

Propafenone

Propofol

Propranolol

Proscar

Protonix

Protriptyline

Provayblue

Prozac

Purinethol

Pyrazinamide

Qualaquin

Quetiapine

Quinapril

Quinapril/HCTZ

Quinine

Rabeprazole

Raloxifene

Raltegravir

Ranexa

Ranolazine

Rapaflo

Rapamune

Rasburicase

Razadyne

Reboxetine

Relafen

Relpax

Remeron

Repaglinide

Retrovir

Revia

Rexulti

Reyataz

Ribavirin

Rifadin

Rifamate

Rifampin

Rifampin/Isoniazid

Rifampin/Isoniazid/Pyrazinamide

Rifater

Rifater

Risperdal

Risperidone

Ritalin

Ritonavir

Rivaroxaban

Robaxin

Rolapitant

Ropivacaine

Rosiglitazone

Rosuvastatin

Rufinamide

Ruxolitinib

Rythmol

Sanctura

Sancuso

Saphris

Savaysa

Savella

Serax

Seroquel

Sertraline

Sildenafil

Silenor

Silodosin

Simeprevir

Simvastatin

Simvastatin/Ezetimibe

Sirolimus

Skelaxin

SMZ/TMP

Sodium Nitrite

Sofosbuvir and Velpatasvir

Soltamox

Soma

Sorafenib