- A+D Ointment/A+D Cream
- A-3 Revised
- A-Caro-25
- A-Fil
- A-Methapred
- A/B Otic
- A200 Maximum Strength
- AB Otic
- Abbokinase
- Abelcet
- Abilify
- Ablavar
- Abraxane
- Abreva
- Absorbine Jr Antifungal
- Absorica
- Abstral
- ACAM2000
- Accolate
- Accretropin
- Accuneb
- Accupril
- Accuretic
- Aceon
- Acephen
- Acetasol HC
- Acetic Acid Irrigation
- Acetic Acid Otic Solution
- Acetone
- Achromycin V
- Aciphex
- Aclovate
- Acne-Aid Gel
- Actamin Maximum Strength
- Actemra
- ActHIB
- Acthrel
- Acticin
- Actidose-Aqua
- Activella
- Actonel
- Actoplus Met
- Actos
- Acular
- Aczone gel
- Adalat CC
- Adderall
- Adipex-P
- Adoxa CK
- Adrenalin
- Advair diskus
- Advate
- Advicor
- Aerobid
- Aerobid Corticosteroid
- Afinitor
- Afiuria 2015-2016 Formula
- Aflaxen
- Afrezza
- Afrin
- Aggrastat
- Aggrenox
- Agrylin
- AK-Con
- AK-NaCl
- Akeniton
- Akineton
- Akne-Mycin
- Akten
- AKTob
- Akurza
- Akynzeo
- Ala-Cort
- Alamast
- Alavert-D 12-Hour
- Alaway
- Albenza
- Albuterol
- Alcaine
- Aldactazide
- Aldactone
- Aldara
- Aldomet
- Aldomet Injection
- Aldoril
- Aldurazyme
- Alecensa
- Alimta
- Alinia
- Alka-Seltzer Anti-Gas
- Alka-Seltzer Plus Cold and Sinus
- Alkeran
- Allegra
- Allegra-D
- Allerx-D
- Allfen
- Alli
- Allocord
- Almora
- Alocril
- Aloe Vesta Antifungal
- Alomide
- Aloprim
- Alora
- Aloxi
- Alpha-E
- Alphagan P
- Alphanate
- Alphanine SD
- Alphatrex
- Alprolix
- Alrex
- Alsuma
- Altabax
- Altacaine
- Altace
- Altafrin
- Altec
- Altoprev
- Alupent
- Alupent Beta-2
- Alupent Inhalation
- Alvesco
- Amaryl
- Ambien
- Ambisome
- Amerge
- Amevive
- Amicar
- Amigesic
- Amikin
- Amino-CR
- Aminohippurate
- Aminomine
- Aminosyn
- Aminoxin
- Amitiza
- Amitriptyline
- Ammens Medicated
- Ammonul
- Amoclan
- Amoxicot
- Amoxil
- Amphadase
- Amphocin
- Amphotec
- Ampyra
- Amsa PD
- Amturnide
- Amyl Nitrite
- Amyvid
- An-DTPA
- Anacaine
- Anadrol-50
- Anafranil
- Analpram E
- AnaMantle HC
- Anascorp
- Anaspaz
- Anavip
- Anbesol
- Ancef
- Ancobon
- Androderm
- Androgel
- Anestacon
- Anoro Ellipta
- Ansaid
- Antabuse
- Antagon
- Antara
- Anthrasil
- Antibiotic Cream
- Antibiotic Otic
- Antiflex
- Antihistamine
- Antinaus 50
- Antispasmodic
- Antivenin
- Antivenin Polyvalent
- Antivenin-Spider
- Antivert
- Anturane
- Anturol
- Anzemet
- Anzemet Injection
- APAP w Codeine
- Apexicon
- APF Gel
- Aphthasol
- Apidra
- Aplenzin
- Aplicare One Tincture of Iodine
- Aplisol
- Apo-Ketotifen
- Apokyn
- Appearex
- Apresazide
- Apresoline
- Apri
- Apriso
- Aptensio XR
- Aptiom
- Aptivus
- Aquasol A
- Aquatensen
- Aquazide H
- Aralast
- Aralen
- Arava
- Aricept
- Arimidex
- Aristocort
- Arixtra
- Arlidin
- Arthrotec
- Arzerra
- Ascarel
- Ascocid
- Ascomp w Codeine
- Ascriptin
- Asendin
- Asmanex HFA
- Aspirin, Sodium Bicarbonate, And Citric Acid
- Assure Sore Throat
- Astagraf XL
- Astelin
- Astramorph PF
- Atacand
- Atacand HCT
- Atarax
- Atarax Oral
- Ativan
- Ativan Injection
- Atralin
- Atridox
- Atripla
- Atromid-S
- Atrovent
- Atrovent (Inhalation)
- Attenuvax
- Aubagio
- Auryxia
- Autoplex T
- Avage
- Avalide
- Avandamet
- Avandaryl
- Avandia
- Avapro
- Avc
- Aveed
- Avelox
- Aventyl
- AVINza
- Avizine
- Avodart
- Avonex
- Axert
- Axid
- Aygestin
- Azacitidine
- Azactam
- Azasan
- AzaSite
- Azelex
- Azilect
- Azo-Gesic
- Azopt
- Azor
- Azulfidine Sulfasalazine
- Azulfidine Sulfonamide
