| H | ||
| Halazepam | Paxipam | |
| Halobetasol Propionate | Ultravate | |
| Haloperidol | Haldol | |
| Haloprogin | Halotex | |
| Halothane | Fluothane | |
| Heparin Sodium | Liquaernin Sodium | |
| Hepatitus B Vaccine | Engerix-B, Recornbivax HB | |
| Hestastarch | Hespan | |
| Hyaluronidase | Wydase | |
| Hydralazine HCI | Apresoline | |
| Hydralazine & Hydrochlorothiazide | Apresazide | |
| Hydralazine, HCTZ & Reserpine | Ser-ap-es | |
| Hydrochlarothiazide | HydroDiuril, Esidrex, Oretic | |
| Hydrochlorothiazide & Reserpine | Hydropres | |
| Hydrachlorothiazide & Spironolactone | Aldactazide | |
| Hydrochlorothiazide & Timolol Maleate | Timolide | |
| Hydrochlorothiazide & Triamterene | Maxzide, Dyazide | |
| Hydrocodone Bitartrate & Acetaminophen | Hy-Phen, Vicodin | |
| Hydrocodone Bitartrate & Homatropine | ||
| Methylbromide | Hycodan | |
| Hydrocortisone | Cortef, Hydrocortone | |
| Hydrocortisone Sodium Succinate | Solu-Cortef | |
| Hydroflumethiazide & Reserpine | Salutensin | |
| Hydromorphone HCI | Dilaudid | |
| Hydromorphone HCI & Guaifenesin | Dilaudid Cough Syrup | |
| Hydroxychloroquine Sulfate | Plaquenil Sulfate | |
| Hydroxyurea | Hydrea | |
| Hydroxyzine HCI | Atarax | |
| Hydroxyzine Pamoate | Vistaril | |
| Hyoscyamine Sulfate | Levsin, Cystospaz, Anaspaz |