| Ambrosia confertiflora | 5 NDC codes |
| Ambrosia deltoidea | 5 NDC codes |
| Ambrosia deltoides | 1 NDC codes |
| Ambrosia dumosa | 5 NDC codes |
| Ambrosia psilostachia | 1 NDC codes |
| Ambrosia psilostachya | 6 NDC codes |
| Ambrosia tenuifolia | 1 NDC codes |
| Ambrosia trifida | 7 NDC codes |
| AMBROXOL HCL | 1 NDC codes |
| Ambroxol Hydrochloride | 1 NDC codes |
| amcinonide | 1 NDC codes |
| Amcinonide | 4 NDC codes |
| AMDINOCILLIN | 1 NDC codes |
| American Cheese, Blue Cheese, Brie Cheese, Cheddar Cheese, Cottage Cheese, Goat Milk, Lac Vaccinum, Swiss Cheese, Calcarea Carbonica, Sepia, Sulphur | 1 NDC codes |
| American Cockroach | 1 NDC codes |
| AMERICAN COCKROACH | 1 NDC codes |
| American Elm | 1 NDC codes |
| American Elm, Plane (Sycamore), Ash, Beech, Willow, Elder (Box Elder), Alder, Cedar, Maple, Hazel, Poplar, Kentucky Bluegrass, Orchard Grass, Silver Birch, Bermuda Grass, Johnson Grass, Rye Grass, Vernal Grass, Bahia Grass, Oak, Hickory, Timothy Grass | 1 NDC codes |
| American Ginseng, Adenosine Triphosphate, Corticotropin, Alfalfa, Bos Taurus Hypothalamus, Phytolacca Americana Root, Bos Taurus Pituitary Gland Posterior, Thyroid Unspecified, Iodine, Silicon Dioxide, Oster Shell Calcium Carbonate Crude, Strychnos Ignatii Seed, Iridium, Lachesis Muta Venom, Lycopodium Clavatum Spore, Sodium Chloride, Strychnos Nux-Vomica Seed, Phosphorus, Selenium, Uranyl Nitrate Hexahydrate. | 1 NDC codes |
| AMERICAN GINSENG, AVENA SATIVA, CHAMOMILLA, COFFEA TOSTA, ESCHSCHOLTZIA CALIFORNICA, GLYCYRRHIZA GLABRA, HUMULUS LUPULUS, HYPERICUM PERFORATUM, KALI PHOSPHORICUM, PASSIFLORA INCARNATA, PHOSPHORUS, PULSATILLA VULGARIS, VALERIANA OFFICINALIS, ZINCUM VALERIANICUM | 1 NDC codes |
| American Red Cross 6 oz, 3% Hydrogen Peroxide Spray | 1 NDC codes |
| American Red Cross 6 oz, 50% Isopropyl Alcohol Spray | 1 NDC codes |
| American Red Cross IPA 50% 6oz | 1 NDC codes |
| American Sycamore | 1 NDC codes |
| AMG 423 2HCL | 1 NDC codes |
| Amica Montana HPUS | 1 NDC codes |
| AMIDATE(TM) ETOMIDATE | 1 NDC codes |
| amifampridine phosphate | 3 NDC codes |
| Amifampridine phosphate | 1 NDC codes |
| Amifampridine Phosphate | 1 NDC codes |
| Amifostine | 4 NDC codes |
| AMIFOSTINE | 2 NDC codes |
| Amifostine Trihydrate | 1 NDC codes |
| Amikacin | 2 NDC codes |
| Amikacin Base | 1 NDC codes |
| Amikacin Liposome Inhalation Suspension | 1 NDC codes |
| amikacin sulfate | 1 NDC codes |
| Amikacin Sulfate | 13 NDC codes |
| AMIKACIN SULFATE | 3 NDC codes |
| amiloride - apis mellifera - berberis vulgaris fruit - hieracium pilosella flowering top - hydrochlorothiazide - solidago virgaurea flowering top - spironolactone - sus scrofa pituitary gland - | 1 NDC codes |
| Amiloride HCl | 1 NDC codes |
| amiloride hydrochloride | 1 NDC codes |
| Amiloride hydrochloride | 2 NDC codes |
| Amiloride Hydrochloride | 4 NDC codes |
| Amiloride Hydrochloride and Hydrochlorothiazide | 2 NDC codes |
| AMINO ACID MIXTURE 219 (MIX C) | 1 NDC codes |
| Amino Acid Mixture 297 (Clinisol) | 1 NDC codes |
| AMINO ACID MIXTURE BLEND D | 1 NDC codes |
| AMINO ACID MIXTURE BLEND F | 1 NDC codes |
| AMINO ACID MIXTURE BLEND PMCB - PEDIATRIC BLEND | 1 NDC codes |