| Rifadin and/or Equivalents | Rifadin, Rifampicin, Rifampin | 
| Rifadin Injection and/or Equivalents | Rifadin Vial For Infusion | 
| Rifadin Syrup and/or Equivalents | Rifadin Syrup | 
| Rifamate and/or Equivalents | Rifinah | 
| Rifater and/or Equivalents | Rifater | 
| Rilutek and/or Equivalents | Rilutek, Riluzole | 
| Rilutek Suspension 5mg/ml and/or Equivalents | Teglutik Oral Suspension | 
| Rimadyl Chewable Tablets and/or Equivalents | Rimadyl Chewable tablet | 
| Rimadyl Chewables and/or Equivalents | Rimadyl Chewables | 
| Rimso Solution and/or Equivalents | Rimso-50 | 
| Risperdal and/or Equivalents | Act-Risperidone, Risperdal, Risperidone, Co Risperidone, Co-Risperidone, Rixadone | 
| Risperdal M and/or Equivalents | Mylan-Risperidone ODT, Risperdal Quicklet, Risperidone OD, Risperidone ODT, PMS-Risperidone ODT, Risperdal M | 
| Risperdal Solution and/or Equivalents | Apo-Risperidone, Risperdal, Risperdal Oral Solution, Risperidone Oral Solution | 
| Robaxacet and/or Equivalents | Robaxacet | 
| Robaxacet Extra Strength and/or Equivalents | ARP Muscle & Back XST, Acetaminophen/Methocarbamol, Robaxacet Extra Strength | 
| Robaxin and/or Equivalents | Robaxin | 
| Robaxisal Extra Strength and/or Equivalents | Acetylsalicylic Acid/Methocarbamol, Robaxisal Extra Strength | 
| Rocaltrol and/or Equivalents | Calcitriol, Calcitriol-ODAN, Rocaltrol, Sical, Odan-Calcitriol | 
| Rocaltrol Injection and/or Equivalents | Calcitriol Injection | 
| Rocephin and/or Equivalents | Ceftriaxone, Rocephin | 
| Rogaine Foam For Men and/or Equivalents | Rogaine Foam For Men | 
| Rogaine For Women and/or Equivalents | Regaine For Women | 
| Romazicon and/or Equivalents | Anexate Injection | 
| Rovamycine and/or Equivalents | Rovamycine 250, Rovamycine 500 | 
| Rowachol and/or Equivalents | Rowachol |