Johns Hopkins HIV Guide
- Radiculitis
- Radiculopathy
- RAL
- Raltegravir
- Rebetol
- Recombivax HB
- Red blood cell aplasia
- REGEN-COV
- Remdesivir
- Renal failure
- Rescriptor
- Resistance testing: genotype
- Resistance testing: phenotype
- Respiratory syncytial virus
- Restoril
- Retinitis
- Retrovir
- Reyataz
- Rhabdomyolysis
- Rhinosinusitis
- Rho (D) immune globulin
- Rhodococcus equi
- Riba-Pak
- Ribasphere
- Ribavirin
- Rifabutin
- Rifampin
- Rilpivirine
- Ritonavir
- Rituximab
- Rochalimea
- Rochalimea henselae
- Rochalimea quintana
- Rosiglitazone
- Rosuvastatin
- Rotarix
- RotaTeq
- Rotavirus vaccine
- RSV
- RT PCR
- RTV
- Rubella vaccine