| Methylmalonic Aciduria |  | Disease | Pyridoxal phosphate / Biotin / Succinic acid / Glutamic acid / Pyridoxal / Leucine / NADH / Valine / Isoleucine / ATP / Acetoacetic acid / Oxogluric acid / Flavin adenine dinucleotide / alpha-Ketoisocaproic acid / alpha-Ketoisovalerate / Methylmalonic Acid |
| Methylmalonic Aciduria |  | Disease | Pyridoxal phosphate / Biotin / Succinic acid / Glutamic acid / Pyridoxal / Leucine / NADH / Valine / Isoleucine / ATP / Acetoacetic acid / Oxogluric acid / Flavin adenine dinucleotide / alpha-Ketoisocaproic acid / alpha-Ketoisovalerate / Methylmalonic Acid |
| Methylmalonic Aciduria Due to Cobalamin-Related Disorders |  | Disease | Pyridoxal phosphate / Biotin / Adenosine phosphate / Glutamic acid / NADH / Valine / ATP / Oxogluric acid / beta-Alanine / Flavin adenine dinucleotide / Hydracrylic acid / Propanoic acid / Pyrophosphoric acid / Methylmalonic Acid / Citric acid / Malonyl-CoA / 2-Oxobutanoic Acid |
| Methylmalonic Aciduria Due to Cobalamin-Related Disorders |  | Disease | Pyridoxal phosphate / Biotin / Adenosine phosphate / Glutamic acid / NADH / Valine / ATP / Oxogluric acid / beta-Alanine / Flavin adenine dinucleotide / Hydracrylic acid / Propanoic acid / Pyrophosphoric acid / Methylmalonic Acid / Citric acid / Malonyl-CoA / 2-Oxobutanoic Acid |
| Methylnaltrexone Drug Metabolism |  | Metabolic | Methylnaltrexone |
| Methylnaltrexone Opioid Antagonist Action Pathway |  | Drug Action | ATP / Nitric Oxide / Calcium / Magnesium cation / Cyclic adenosine monophosphate / Acetylcholine / Pyrophosphoric acid / Methylnaltrexone |
| Methylphenidate Dopamine Reuptake Inhibitor Action Pathway |  | Drug Action | Pyridoxal phosphate / Tyrosine / ATP / Methylphenidate / Dopamine / Levodopa / Calcium / Magnesium cation / Iron / Cyclic adenosine monophosphate |
| Methylphenidate Metabolism |  | Metabolic | Methylphenidate |
| Methylphenidate Norepinephrine Reuptake Inhibitor Action Pathway |  | Drug Action | Pyridoxal phosphate / Ascorbic acid / Tyrosine / ATP / Norepinephrine / Methylphenidate / Dopamine / Levodopa / Calcium / Magnesium cation / Iron / Cyclic adenosine monophosphate / Pyrroloquinoline Quinone |
| Methylphenobarbital Action Pathway |  | Drug Action | Pyridoxal phosphate / Glutamic acid / ATP / Methylphenobarbital / Calcium / Magnesium cation / Cyclic adenosine monophosphate / gamma-Aminobutyric acid / Pyrophosphoric acid |
| Methylphenobarbital Predicted Metabolism Pathway |  | Metabolic | Methylphenobarbital / Mesoheme |
| Methylphosphinic Acid Action Pathway |  | Drug Action | Choline / Calcium / Magnesium cation / Methylphosphinic Acid / Acetylcholine / Acetic acid |
| Methylprednisone Predicted Metabolism Pathway |  | Metabolic | Mesoheme / Methylprednisone |
| Methylscopolamine Drug Metabolism Pathway |  | Metabolic | Methscopolamine bromide |
| Methyprylon Drug Metabolism |  | Metabolic | Methyprylon |
| Methysergide Drug Metabolism |  | Metabolic | Methysergide |
| Methysergide Mechanism of Action Action Pathway |  | Drug Action | Pyridoxal phosphate / Tryptophan / ATP / Methysergide / Sapropterin / Calcium / Iron / Oxitriptan |
| Metiamide Action Pathway |  | Drug Action | ATP / Potassium cation / Zinc / Acetylcholine / Metiamide |
| Metiamide H2 Anti-Histamine Action Pathway |  | Drug Action | ATP / Potassium cation / Magnesium cation / Zinc / Cyclic adenosine monophosphate / Metiamide |
| Metipranolol Action Pathway |  | Drug Action | ATP / Metipranolol / Potassium cation / Calcium |
| Metipranolol Action Pathway (New) |  | Drug Action | ATP / Metipranolol / Potassium cation / Calcium / Magnesium cation / Cyclic adenosine monophosphate |
| Metixene Drug Metabolism |  | Metabolic | Metixene |
| Metoclopramide - Dopamine Antagonist Action Pathway |  | Drug Action | Pyridoxal phosphate / Tyrosine / Sapropterin / Dopamine / Metoclopramide / Levodopa / Calcium / Iron |
| Metoclopramide Serotonergic Smooth Muscle Contraction |  | Drug Action | ATP / Metoclopramide / Potassium cation / Calcium / Magnesium cation / Cyclic adenosine monophosphate / Pyrophosphoric acid |
| Metocurine iodide Drug Metabolism |  | Metabolic | Metocurine iodide |