| Name | Aliases |
|---|---|
| Avobenzone / Octocrylene / Terephthalylidene Dicamphor Sulfonic Acid / Titanium Dioxide / Octisalate / Drometrizole Trisiloxane (Ombrelle Lotion) | |
| Avobenzone / Octocrylene / Titanium Dioxide / Drometrizole Trisiloxane (Anthelios XL Stick) | |
| Avodart (Dutasteride) | |
| Avonex (Interferon Beta-1a) | |
| Axert (Almotriptan Malate) | |
| Axid (Nizatidine) | Tazac |
| Axiron (Testosterone) | |
| Axiron (Testosterone Solution, metered; Transdermal) | |
| Axitinib (Inlyta) | |
| Axona (Caprylidene) | |
| Aygestin (Norethindrone Acetate) | Primolut N |
| Ayvakit (Avapritinib) | |
| Azacitidine (Onureg) | |
| Azasan (Azathioprine) | |
| Azasite (Azithromycin) | |
| Azathioprine (Azasan) | |
| Azathioprine (Imuran) | |
| Azelaic Acid (Azelex) | Skinoren Cream |
| Azelaic Acid (Finacea Foam) | |
| Azelaic Acid (Finacea Gel) |
