| Delavirdine Action Pathway |  | Drug Action | Delavirdine |
| Delavirdine HIV Reverse transcriptase Inhibitor Action Pathway |  | Drug Action | Delavirdine |
| Demecarium Action Pathway (new) |  | Drug Action | Choline / Demecarium / Calcium / Magnesium cation / Acetylcholine / Acetic acid |
| Demecarium Drug Metabolism |  | Metabolic | Demecarium |
| Demeclocycline Action Pathway |  | Drug Action | Demeclocycline |
| Demeclocycline Predicted Metabolism Pathway |  | Metabolic | Demeclocycline / Mesoheme |
| Deptropine H1 Antihistamine Smooth Muscle Relaxation Action Pathway |  | Drug Action | Calcium / Magnesium cation / Deptropine |
| Deptropine H1-Antihistamine Action |  | Drug Action | Calcium / Deptropine |
| Deptropine H1-Antihistamine Blood Vessel Constriction Action Pathway |  | Drug Action | Arginine / Citrulline / Sapropterin / Nitric Oxide / Calcium / Magnesium cation / Mesoheme / Flavin adenine dinucleotide / Flavin mononucleotide / Deptropine |
| Deptropine H1-Antihistamine Immune Response Action Pathway |  | Drug Action | Calcium / Deptropine |
| Dequalinium Drug Metabolism |  | Metabolic | Dequalinium |
| Desflurane GABA(A) Anesthetic Action Pathway |  | Drug Action | Pyridoxal phosphate / Glutamic acid / ATP / Desflurane / Calcium / Magnesium cation / Cyclic adenosine monophosphate / gamma-Aminobutyric acid / Pyrophosphoric acid |
| Desipramine Action Pathway |  | Drug Action | ATP / Norepinephrine / Dopamine / Desipramine / Potassium cation / Calcium / Mesoheme |
| Desipramine Action Pathway (New) |  | Drug Action | Pyridoxal phosphate / Ascorbic acid / Tyrosine / Tryptophan / Sapropterin / Norepinephrine / Dopamine / Desipramine / Levodopa / Calcium / Iron / Oxitriptan / Pyrroloquinoline Quinone |
| Desipramine Metabolism Pathway |  | Drug Metabolism | Desipramine / Mesoheme |
| Desirudin Action Pathway |  | Drug Action | Calcium / Desirudin |
| Desloratadine Drug Metabolism |  | Metabolic | Desloratadine |
| Desloratadine H1 Antihistamine Smooth Muscle Relaxation Action Pathway |  | Drug Action | Desloratadine / Calcium / Magnesium cation |
| Desloratadine H1-Antihistamine Action |  | Drug Action | Desloratadine / Calcium |
| Desloratadine H1-Antihistamine Blood Vessel Constriction Action Pathway |  | Drug Action | Arginine / Citrulline / Sapropterin / Nitric Oxide / Desloratadine / Calcium / Magnesium cation / Mesoheme / Flavin adenine dinucleotide / Flavin mononucleotide |
| Desloratadine H1-Antihistamine Immune Response Action Pathway |  | Drug Action | Doxylamine / Calcium |
| Desmopressin Action Pathway |  | Drug Action | Desmopressin / ATP / Magnesium cation / Cyclic adenosine monophosphate / Pyrophosphoric acid |
| Desmosterolosis |  | Disease | Cholecalciferol / ATP / Magnesium cation / Iron / Dimethylallyl Diphosphate / Formic acid / Geranyl Diphosphate / Mesoheme / Flavin adenine dinucleotide / Palmitic Acid / Pyrophosphoric acid / Cholesterol / ISOPENTENYL PYROPHOSPHATE / Farnesyl diphosphate |
| Desmosterolosis |  | Disease | Cholecalciferol / ATP / Magnesium cation / Iron / Dimethylallyl Diphosphate / Formic acid / Geranyl Diphosphate / Mesoheme / Flavin adenine dinucleotide / Palmitic Acid / Pyrophosphoric acid / Cholesterol / ISOPENTENYL PYROPHOSPHATE / Farnesyl diphosphate |
| Desomorphine Opioid Agonist Action Pathway |  | Drug Action | ATP / Calcium / Magnesium cation / Desomorphine / Cyclic adenosine monophosphate / gamma-Aminobutyric acid / Pyrophosphoric acid / Sar9, Met (O2)11-Substance P |