| Ergotamine Mechanism of Action Action Pathway |  | Drug Action | ATP / Ergotamine / Calcium / Magnesium cation / Cyclic adenosine monophosphate / Pyrophosphoric acid |
| Erlotinib Action Pathway |  | Drug Action | ATP / Erlotinib |
| Erlotinib Action Pathway (New) |  | Drug Action | Erlotinib / Magnesium cation |
| Erythrityl tetranitrate Drug Metabolism |  | Metabolic | Erythrityl tetranitrate |
| Erythromycin Action Pathway |  | Drug Action | Erythromycin |
| Erythromycin Anti-Bacterial Action Pathway |  | Drug Action | Erythromycin |
| Escitalopram Action Pathway |  | Drug Action | ATP / Norepinephrine / Dopamine / Escitalopram / Potassium cation / Calcium |
| Escitalopram Mechanism of Action Action Pathway New |  | Drug Action | Pyridoxal phosphate / Tryptophan / Sapropterin / Escitalopram / Calcium / Iron / Oxitriptan |
| Escitalopram Predicted Metabolism Pathway |  | Metabolic | Escitalopram / Mesoheme |
| Esketamine Action Pathway |  | Drug Action | L-Glutamine / Glutamic acid / Calcium / Esketamine |
| Esketamine Predicted Metabolism Pathway |  | Metabolic | Mesoheme / Esketamine |
| Eslicarbazepine Acetate Action Pathway |  | Drug Action | Potassium cation / Calcium / Mesoheme / Eslicarbazepine acetate / Eslicarbazepine |
| Eslicarbazepine Predicted Metabolism Pathway |  | Metabolic | Mesoheme / Eslicarbazepine |
| Esmirtazapine H1 Antihistamine Neurological Sleep Action Pathway |  | Drug Action | Pyridoxal phosphate / Histidine / Calcium / Esmirtazapine |
| Esmirtazapine H1 Antihistamine Smooth Muscle Relaxation Action Pathway |  | Drug Action | Calcium / Magnesium cation / Esmirtazapine |
| Esmirtazapine H1-Antihistamine Blood Vessel Constriction Action Pathway |  | Drug Action | Arginine / Citrulline / Sapropterin / Nitric Oxide / Calcium / Magnesium cation / Mesoheme / Flavin adenine dinucleotide / Flavin mononucleotide / Esmirtazapine |
| Esmirtazapine H1-Antihistamine Immune Response Action Pathway |  | Drug Action | Calcium / Esmirtazapine |
| Esmolol Action Pathway |  | Drug Action | ATP / Esmolol / Potassium cation / Calcium |
| Esmolol Action Pathway (New) |  | Drug Action | ATP / Esmolol / Calcium |
| Esomeprazole Action Pathway |  | Drug Action | Esomeprazole / Potassium cation / Zinc |
| Esomeprazole Action Pathway (Old) |  | Drug Action | ATP / Esomeprazole / Potassium cation / Zinc / Acetylcholine |
| Esomeprazole Metabolism Pathway (Old) |  | Drug Metabolism | Esomeprazole |
| Esomeprazole Predicted Metabolism Pathway |  | Metabolic | Esomeprazole / Mesoheme |
| Estazolam Action Pathway |  | Drug Action | Pyridoxal phosphate / Glutamic acid / ATP / Estazolam / Calcium / Magnesium cation / Cyclic adenosine monophosphate / gamma-Aminobutyric acid / Pyrophosphoric acid |
| Estetrol Drug Metabolism |  | Metabolic | Estetrol |