- Maalox
- Maalox Antacid Barrier
- Maalox Anti-Diarrheal
- Maalox Children's
- Maalox Junior Plus Antigas
- Maalox Max
- Maalox Max Quick Dissolve
- Maalox Quick Dissolve
- Maalox Quick Dissolve Maximum Strength
- MacerRx
- Macrobid
- Macrodantin
- Macrodex
- Macrogol
- Macrogol, Combinations
- Macugen
- Macuvite
- Macuvite with Lutein
- Mafenide
- Mag 64
- Mag-200
- Mag-Delay
- Mag-G
- Mag-Ox 400
- Mag-SR
- Mag-Tab SR
- Magagel
- Magagel Plus
- Magaldrate
- Magaldrate And Antiflatulents
- Magalox Plus
- MagGel
- Maginex
- Maginex DS
- Magmilax
- Magnacet
- Magnalox
- Magnaprin
- MagneBind 200
- MagneBind 300
- Magnesiocard
- Magnesium (different Salts In Combination)
- Magnesium Aspartate
- Magnesium Carbonate
- Magnesium Chloride
- Magnesium Citrate
- Magnesium Gluconate
- Magnesium Hydroxide
- Magnesium Lactate
- Magnesium Levulinate
- Magnesium Orotate
- Magnesium Oxide
- Magnesium Peroxide
- Magnesium Phosphate
- Magnesium Pidolate
- Magnesium Pyridoxal 5-phosphate Glutamate
- Magnesium Silicate
- Magnesium Sulfate
- Magonate
- Magtrate
- Maintain
- Major-Cin
- Major-gesic
- Makena
- Malarone
- Malathion
- Maldec
- Maldec-DM
- Maldemar
- Mallazine
- Mallisol
- Mallotuss
- Mandelamine
- Mandelay
- Mandelic Acid
- Mandol
- Mane 'N Tail Daily Control
- Mane 'N Tail Pro-Tect
- Mangafodipir
- Manidipine
- Mannitol
- Mannosulfan
- Maolate
- Maoson
- Mapap
- Mapap Cold Formula
- Mapap Junior Strength
- Mapap Sinus Congestion and Pain
- Maprotiline
- Mar-cof BP
- Mar-cof CG
- Mar-Zinc
- Maracyn
- Maracyn Plus
- Maraviroc
- Marcaine
- Marcillin
- Mardol
- Marezine
- Maribavir
- Marine Mist
- Marinol
- Marlissa
- Marly Skin Guard
- Marplan
- Marqibo
- Marten-Tab
- Marthritic
- Masitinib
- Masophen
- Masophen PM
- Masoprocol
- Massengill Medicated Douche
- Masti-clear
- Mastic Dent
- Mastussin
- Mastussin DM
- Mastussin PE
- Matulane
- Matzim
- Mavik
- Maxair
- Maxalt
- Maxaquin
- Maxclarity 2.5 %
- Maxclarity 8 %
- Maxidex
- Maxidone
- Maxiflor
- Maximum D3
- Maximum-H
- Maxipime
- Maxivate
- Maxzide
- Mazanor
- Mazaticol
- Mazindol