| A.R. | Assessment Report |
| ACRP | Association of Clinical Research Professionals |
| ADL | Asociácia dodávateľov liekov |
| ADR | Adverse Drug Reaction |
| AESGP | Association Européenne des Specialités Pharmaceutiques Grand Public (Association of the European Self-Medication Industry) |
| AFSSAPS | Agence francoise de sécurité sanitaire des produits de santé |
| AIM | Association Internationale de la Mutualité |
| AIMD | Active Implantable Medical Device |
| ANMAT | National Administration of Food, Drugs and Medical Technology, Argentina |
| API | Active Pharmaceutical Ingredient |
| ASMF | Active Substance Master File |
| ATC | Anatomical Therapeutic Chemical Classification System |
