| Ferrous fumarate Drug Metabolism |  | Metabolic | Ferrous fumarate |
| Ferrous gluconate Drug Metabolism |  | Metabolic | Ferrous gluconate |
| Ferrous glycine sulfate Drug Metabolism |  | Metabolic | Ferrous glycine sulfate |
| Ferrous succinate Drug Metabolism |  | Metabolic | Ferrous succinate |
| Fesoterodine Action Pathway |  | Drug Action | Calcium / Magnesium cation / Fesoterodine |
| Fexinidazole Predicted Metabolism Pathway |  | Metabolic | Mesoheme / Fexinidazole |
| Fexofenadine H1 Antihistamine Smooth Muscle Relaxation Action Pathway |  | Drug Action | Fexofenadine / Calcium / Magnesium cation |
| Fexofenadine H1-Antihistamine Action |  | Drug Action | Fexofenadine / Calcium |
| Fexofenadine H1-Antihistamine Blood Vessel Constriction Action Pathway |  | Drug Action | Arginine / Citrulline / Sapropterin / Nitric Oxide / Fexofenadine / Calcium / Magnesium cation / Mesoheme / Flavin adenine dinucleotide / Flavin mononucleotide |
| Fexofenadine H1-Antihistamine Immune Response Action Pathway |  | Drug Action | Fexofenadine / Calcium |
| Finasteride Action Pathway |  | Drug Action | NADH / Testosterone / Finasteride / Androstenedione / Mesoheme / Acetic acid / Flavin mononucleotide / Cholesterol |
| Finerenone Action Pathway |  | Drug Action | Potassium cation / Urea / Finerenone |
| Fish oil Prostaglandin G/H synthase 1 and 2 anti-inflammatory Action Pathway |  | Drug Action | Glutathione / Icosapent / Dinoprostone / Calcium / Mesoheme / Prostaglandin G2 / Arachidonic Acid |
| Flavin mononucleotide Drug Metabolism |  | Metabolic | Flavin mononucleotide |
| Flavoxate Action Pathway |  | Drug Action | ATP / Flavoxate / Potassium cation / Calcium / Magnesium cation / Cyclic adenosine monophosphate |
| Flecainide Action Pathway |  | Drug Action | ATP / Flecainide / Potassium cation / Calcium |
| Flecainide Antiarrhythmic Action Pathway |  | Drug Action | Flecainide / Potassium cation / Calcium |
| Flecainide Predicted Metabolism Pathway |  | Metabolic | Flecainide / Mesoheme |
| Flibanserin Serotonin Action Action Pathway |  | Drug Action | Pyridoxal phosphate / Tryptophan / Sapropterin / Calcium / Iron / Oxitriptan / Flibanserin |
| Fluconazole Action Pathway |  | Drug Action | Fluconazole / Formic acid / Mesoheme / Ergosterol |
| Fluconazole Metabolism |  | Metabolic | Fluconazole / Mesoheme |
| Fludarabine Action Pathway |  | Drug Action | ATP / Fludarabine / Magnesium cation / Iron / Zinc |
| Fludarabine Drug Metabolism |  | Metabolic | Fludarabine |
| Flumazenil Action Pathway |  | Drug Action | Pyridoxal phosphate / Glutamic acid / ATP / Flumazenil / Calcium / Magnesium cation / Cyclic adenosine monophosphate / gamma-Aminobutyric acid / Pyrophosphoric acid |
| Flumethasone Action Pathway |  | Drug Action | Glutathione / Flumethasone / Dinoprostone / Calcium / Prostaglandin D2 / Mesoheme / Prostaglandin G2 / Arachidonic Acid |