| Ramatroban |
| Ramosetron Hydrochloride |
| Ranitidine Hydrochloride |
| Rebamipide |
| Repirinast |
| Rescinnamine |
| Reserpine* |
| Resorcin |
| Retinol Acetate* |
| Retinol Palmitate* |
| Riboflavin Butyrate* |
| Riboflavin Sodium Phosphate* |
| Riboflavin* |
| Ribostamycin Sulfate* |
| Rifampicin* |
| Rilmazafone Hydrochloride |
| Riluzole |
| Risperidone |
| Ritodrine Hydrochloride |
| Ritonavir |
| Rokitamycin |
| Romurtide |
| Roxatidine Acetate Hydrochloride |
| Roxithromycin |