| Levobunolol Predicted Metabolism Pathway |  | Metabolic | Levobunolol / Mesoheme |
| Levobupivacaine Action Pathway |  | Drug Action | ATP / Norepinephrine / Dopamine / Levobupivacaine / Potassium cation / Calcium |
| Levocabastine H1 Antihistamine Smooth Muscle Relaxation Action Pathway |  | Drug Action | Levocabastine / Calcium / Magnesium cation |
| Levocabastine H1-Antihistamine Action |  | Drug Action | Levocabastine / Calcium |
| Levocabastine H1-Antihistamine Blood Vessel Constriction Action Pathway |  | Drug Action | Arginine / Citrulline / Sapropterin / Nitric Oxide / Levocabastine / Calcium / Magnesium cation / Mesoheme / Flavin adenine dinucleotide / Flavin mononucleotide |
| Levocabastine H1-Antihistamine Immune Response Action Pathway |  | Drug Action | Levocabastine / Calcium |
| Levocabastine Predicted Metabolism Pathway |  | Metabolic | Levocabastine / Mesoheme |
| Levocetirizine H1 Antihistamine Smooth Muscle Relaxation Action Pathway |  | Drug Action | Calcium / Magnesium cation / Levocetirizine |
| Levocetirizine H1-Antihistamine Action |  | Drug Action | Calcium / Levocetirizine |
| Levocetirizine H1-Antihistamine Blood Vessel Constriction Action Pathway |  | Drug Action | Arginine / Citrulline / Sapropterin / Nitric Oxide / Calcium / Magnesium cation / Mesoheme / Flavin adenine dinucleotide / Flavin mononucleotide / Levocetirizine |
| Levocetirizine H1-Antihistamine Immune Response Action Pathway |  | Drug Action | Calcium / Levocetirizine |
| Levodopa Metabolism Pathway |  | Metabolic | Pyridoxal phosphate / Ademetionine / Ascorbic acid / NADH / Norepinephrine / Epinephrine / Dopamine / Levodopa / Magnesium cation / Flavin adenine dinucleotide / Pyrroloquinoline Quinone / Uridine-5'-Diphosphate |
| Levodopa Pahway |  | Drug Action | Pyridoxal phosphate / ATP / Dopamine / Levodopa / Calcium / Magnesium cation / Cyclic adenosine monophosphate / Pyrophosphoric acid |
| Levoleucovorin Action Pathway |  | Drug Action | Pyridoxal phosphate / Tetrahydrofolic acid / Serine / Glutamic acid / Glycine / Folic acid / Deoxyuridine monophosphate |
| Levomenol Drug Metabolism |  | Metabolic | Levomenol |
| Levomethadyl Acetate Action Action Pathway |  | Drug Action | ATP / Norepinephrine / Dopamine / Levacetylmethadol / Potassium cation / Calcium |
| Levomethadyl Acetate Metabolism Pathway |  | Drug Metabolism | NADH / Levacetylmethadol / Mesoheme / Formaldehyde |
| Levomilnacipran Drug Metabolism |  | Metabolic | Levomilnacipran |
| Levomilnacipran SNRI - Norepinephrine reuptake Inhibition Action Pathway |  | Drug Action | Pyridoxal phosphate / Ascorbic acid / Tyrosine / Norepinephrine / Dopamine / Levodopa / Calcium / Iron / Pyrroloquinoline Quinone / Levomilnacipran |
| Levomilnacipran SNRI - Serotonin Reuptake Inhibition Action Pathway |  | Drug Action | Pyridoxal phosphate / Tryptophan / Sapropterin / Iron / Oxitriptan / Levomilnacipran |
| Levonorgestrel Action Pathway |  | Drug Action | NADH / ATP / Levonorgestrel / Progesterone / Testosterone / Estrone / Potassium cation / Calcium / Magnesium cation / Androstenedione / Cyclic adenosine monophosphate / Mesoheme / Pyrophosphoric acid / Cholesterol / 2-Hydroxyestradiol |
| Levonorgestrel Predicted Metabolism Pathway |  | Metabolic | Levonorgestrel / Mesoheme |
| Levorphanol Action Pathway |  | Drug Action | ATP / Norepinephrine / Levorphanol / Dopamine / Potassium cation / Calcium |
| Levorphanol Opioid Agonist Action Pathway |  | Drug Action | ATP / Levorphanol / Calcium / Magnesium cation / Cyclic adenosine monophosphate / gamma-Aminobutyric acid / Pyrophosphoric acid / Sar9, Met (O2)11-Substance P |
| Levosalbutamol Action Pathway |  | Drug Action | ATP / Potassium cation / Calcium / Magnesium cation / Cyclic adenosine monophosphate / Levosalbutamol |