See Drug Interventions by First Letter (R)
- Rabeprazole
- Raclopride
- Radiation-Protective Agents
- Radiation-Sensitizing Agents
- Raloxifene
- Raltitrexed
- Ramatroban
- Ramipril
- Ramosetron
- Ranitidine
- Ranitidine bismuth citrate
- Ranolazine
- Ranpirnase
- Rasagiline
- Rasburicase
- Raspberry
- Rauwolfia
- Razoxane
- Reaferon
- Rebamipide
- Reboxetine
- Red Cinchona
- Red Clover
- Red Yeast
- Red yeast rice
- Regadenoson
- Reishi
- Remifentanil
- Renal Agents
- Renzapride
- Repaglinide
- Reproductive Control Agents
- Reproterol
- Reserpine
- Respiratory System Agents
- Resveratrol
- Reteplase
- Retinamide
- Retinol
- Retinol acetate
- Retinol palmitate
- Reverse Transcriptase Inhibitors
- Rho(D) Immune Globulin
- Ribavirin
- Riboflavin
- Rice bran oil
- Rifabutin
- Rifampin
- Rifamycin SV
- Rifamycins
- Rifapentine
- Rifaximin
- Rilmenidine
- Riluzole
- Rimantadine
- Rimexolone
- Risedronic acid
- Risperidone
- Ritanserin
- Ritodrine
- Ritonavir
- Rituximab
- Rivastigmine
- Rizatriptan
- Rocuronium
- Rofecoxib
- Rolipram
- Romidepsin
- Ropinirole
- Ropivacaine
- Roscovitine
- Rose Hips
- Rosemary
- Rosiglitazone
- Rosmarinic acid
- Rosuvastatin
- Roxithromycin
- Ruboxistaurin
- Rue
- Rutin