| Oak | 1 NDC codes |
| Oak Mix | 4 NDC codes |
| Oak Red | 1 NDC codes |
| Oak, Red Quercus rubra | 2 NDC codes |
| Oak Virginia Live | 2 NDC codes |
| Oak White | 3 NDC codes |
| oatmeal | 1 NDC codes |
| Oatmeal | 22 NDC codes |
| OATMEAL | 14 NDC codes |
| Oatmeal, zinc oxide | 1 NDC codes |
| Oats, Common, Cultivated Avena sativa | 2 NDC codes |
| Obecabtagene autoleucel | 1 NDC codes |
| obeticholic acid | 1 NDC codes |
| Obeticholic acid | 2 NDC codes |
| Obeticholic Acid | 4 NDC codes |
| OBETICHOLIC ACID | 2 NDC codes |
| obiltoxaximab | 1 NDC codes |
| Obiltoxaximab | 1 NDC codes |
| obinutuzumab | 1 NDC codes |
| Ocaliva | 2 NDC codes |
| OCIMUM AMERICANUM LEAF | 2 NDC codes |
| Oclacitinib maleate | 7 NDC codes |
| Oclacitinib Maleate | 2 NDC codes |
| ocrelizumab | 3 NDC codes |
| ocrelizumab and hyaluronidase | 1 NDC codes |
| Octenidine Dihydrochloride | 2 NDC codes |
| OCTENIDINE HYDROCHLORIDE | 1 NDC codes |
| Octinoxate | 22 NDC codes |
| OCTINOXATE | 77 NDC codes |
| Octinoxate 6% Zinc Oxide 3% | 1 NDC codes |
| Octinoxate 7.50% Octisalate 5.00% | 1 NDC codes |
| Octinoxate 7.5%, Octisalate 5%, Oxybenzone 3% | 1 NDC codes |
| Octinoxate 7.5%, Octisalate 5%, Zinc Oxide 14.5% | 1 NDC codes |
| Octinoxate 7.5%, Titanium Dioxide 5%, Zinc Oxide 1% | 4 NDC codes |
| Octinoxate and Octisalate | 17 NDC codes |
| octinoxate and oxybenzone | 2 NDC codes |
| Octinoxate and Oxybenzone | 13 NDC codes |
| OCTINOXATE and OXYBENZONE | 1 NDC codes |
| octinoxate and titanium dioxide | 22 NDC codes |
| Octinoxate and Titanium dioxide | 4 NDC codes |
| Octinoxate and Titanium Dioxide | 13 NDC codes |
| OCTINOXATE and TITANIUM DIOXIDE | 169 NDC codes |
| octinoxate and zinc oxide | 1 NDC codes |
| Octinoxate and Zinc Oxide | 7 NDC codes |
| OCTINOXATE and ZINC OXIDE | 2 NDC codes |
| octinoxate and zinc oxide sunscreen | 1 NDC codes |
| Octinoxate, Avobenzone | 1 NDC codes |
| OCTINOXATE, AVOBENZONE | 3 NDC codes |
| Octinoxate, Avobenzone, Octisalate | 1 NDC codes |
| OCTINOXATE, AVOBENZONE, OCTISALATE | 1 NDC codes |