| Merc Viv (Hydrargyrum) |
| Mercurialis Perrenis |
| Mesalazine (Asacol) |
| Meteorite (Eising) |
| Methacrylic Resin |
| Methanol (Methyl Alcohol) |
| Methionine (DL-) |
| Methyl Alcohol (Methanol) |
| Methyl Bromide |
| Methylene Blue |
| Metron |
| Mezerium (Daphne Mezereum) |
| Mica |
| Micrococcin |
| Micrococcus Catarrhalis (Neisseria Cat) |
| Microwave |
| Micrurus Cor (Elaps Cor) |
| Midazolam (Hypnovel) |
| Midge (Culicoides Mix, Sweet Itch) |
| Midge (Scottish) |
| Milk |
| Milk Thistle (Carduus Mar, Silybum Mar ) |
| Millefolium (Achillea Millefolium) |
| Mimosa Pudica |
| Mimulus |
| Mineral (Mineralis) |
| Minovlae |
| Misodendrum Punctulatum (Fool's Misteltoe) |
| Mixed Japanese Pollens |
| Mixed Grasses |
| Mixed Perfume |
| Mixed Pollens |
| Mobile Phone (mixed frequency) |
| Molluscum Contagiosum Nosode |
| Molybdenum Met |
| Molybdenum Mur |
| Molybdenum Phos |
| Molybdenum Sulph |
| Molybdenum Trioxide (Acid Molybdic, Molybdic Acid) |
| Momordica Balsamina |
| Monosodium Glutamate |
| Moray Eel (Muraea Mel) |
| Morgan (Bach) |
| Morgan Co |
| Morgan Gærtner (Paterson) |
| Morgan Pure (Paterson) |
| Morion (Immersion) |
| Moschus Mosch (Tunq) |
| Mosquito (Culex) |
| Moss (mixed wood) |
| Moth (Apeira Syringaria) |
| Moulds (mixed) |
| Mouse fur (Pel muris) |
| Muco Bacter (Mersch) |
| Mucor Aspergillus Penicillinum (MAP) |
| Mucor Mucedo |
| Mucor Racemosus |
| Mullein (Verbascum) |
| Muraea Mel (Moray Eel) |
| Murex Purpurea |
| Muriaticum Acid (Acid Muriaticum, Hydrochloric Acid) |
| Musa Sapientum |
| Musca Domestica (House Fly) |
| Muscarinum Nit |
| Muscle (Striated Tissue) |
| Musculosum |
| Mushroom |
| Mussel (Blue, Mytilus Edulis, M. Trossilus) |
| Mussel (Brachiodontes Rodriguezi) |
| Mutabile (Paterson) |
| Mute Swan (Cygnus Olor) |
| Myelin |
| Mygale Lasiodora |
| Myocardium |
| Myosotis Symphytipolia |
| Myristica Sebifera (Virola) |
| Myrrh |
| Mytilus Edulis (Mytilus Trossilus, Mussel) |