- Abilify®
- Acarbose
- Accarb®
- Accupril®
- Aciclovir (tablets)
- Acyclovir (tablets)
- Adalat®
- Adalimumab
- Adapalene
- Adefin XL®
- Advantan®
- Alanase®
- Aldara®
- Alendronate
- Allopurinol
- Alpha-Keri Lotion®
- Amiodarone
- Amirol®
- Amisulpride
- Amitriptyline
- Amitrip®
- Amlodipine
- Amorolfine
- Amoxicillin
- Amoxicillin + clavulanic acid
- Anastrozole
- Anoro Ellipta®
- Antacids
- Antibiotic resistance
- Antibiotics
- Anticoagulants
- Antidepressants
- Antidepressants in pregnancy
- Antihistamines
- Antinaus®
- Antipsychotics
- Antiretroviral therapy
- Antiseptics
- Apo-imiquimod®
- Aqueous cream
- Aricept®
- Aripiprazole
- Aristocort®
- Aspirin
- Atacand®
- Atenolol
- Atorvastatin
- Ava 20®
- Ava 30®
- Azamun®
- Azathioprine
- Azithromycin