Trimethoprim N-oxide (Trimethoprim 1-N-oxide) belongs to human urinary metabolites. Trimethoprim N-oxide is generated by oxidation of nitrogen atoms in the pyrimidine ring. Trimethoprim N-oxide is formed predominantly by CYP1A2 in human liver microsomes.

(E)-10-Hydroxy Nortriptyline maleate is a metabolite of Nortriptyline. Nortriptyline is a tricyclic antidepressant and the main active metabolite of Amitriptyline, and is used to relieve the symptoms of depression.

(Z)-10-Hydroxy Nortriptyline is a metabolite of Nortriptyline. Nortriptyline is a tricyclic antidepressant and the main active metabolite of Amitriptyline, and is used to relieve the symptoms of depression.

Desmethylnortriptyline is a metabolite of Nortriptyline. Nortriptyline is a tricyclic antidepressant and the main active metabolite of Amitriptyline, and is used to relieve the symptoms of depression.

O-Desmethyl apixaban is a metabolite of Apixaban (BMS-562247-01). Apixaban is a highly selective, reversible inhibitor of Factor Xa with Ki of 0.08 nM and 0.17 nM in human and rabbit, respectively.

Etilevodopa (L-Dopa ethyl ester), an ethyl-ester prodrug of Levodopa, is rapidly hydrolyzed to Levodopa and ethanol by nonspecific esterases in the gastrointestinal tract. Etilevodopa is used for the treatment of Parkinson disease (PD). Levodopa is the direct precursor of dopamine and is a suitable prodrug as it facilitates CNS penetration and delivers dopamine.

N-Desmethyl Clomipramine hydrochloride (Desmethylclomipramine hydrochloride) is a primary plasma N-desmethyl metabolite of Clomipramine. Clomipramine is a tricyclic antidepressant.

Pitavastatin lactone is a major metabolite of Pitavastatin in humans. Pitavastatin is a potent competitive inhibitor of HMG-CoA reductase little metabolized in hepatic microsomes.

4-Desmethoxy Omeprazole is the active metabolite of Omeprazole. Omeprazole, a proton pump inhibitor (PPI), is available for treatment of acid-related gastrointestinal disorders. Omeprazole shows competitive inhibition of CYP2C19 activity with a Ki of 2 to 6 μM. Omeprazole also inhibits growth of Gram-positive and Gram-negative bacteria.

3'-Hydroxy Repaglinide is a main CYP2C8 metabolite of Repaglinide. Repaglinide is a carbamoylmethyl benzoic acid (CMBA) derivative, which recently has become available for the treatment of type II diabetes.

Descarbamoyl cefuroxime is a degradation product of Cefuroxime. Descarbamoyl cefuroxime is also an intermediate for the synthesis of Cephalosporin antibiotics.

tert-Buthyl Pitavastatin is the  metabolite of Pitavastatin. Pitavastatin is a potent HMG-CoA reductase inhibitor.

Dihydro Dutasteride is a metabolite of Dutasteride. Dutasteride is a potent inhibitor of both 5 alpha-reductase isozymes.

5β-Dutasteride is the S configuration of Dutasteride. 5β-Dutasteride is a potent inhibitor of both 5 alpha-reductase isozymes.

4-Desmethyl Istradefylline is a metabolite of Istradefylline. 4-Istradefylline is a very potent, selective and orally active adenosine A2A receptor antagonist with Ki of 2.2 nM in experimental models of Parkinson's disease.

ent-Ezetimibe (ent-SCH 58235) is the RRS-enantiomer of Ezetimibe. Ezetimibe is a potent cholesterol absorption inhibitor. Ezetimibe is a Niemann-Pick C1-like1 (NPC1L1) inhibitor, and is a potent Nrf2 activator.

Desmethyl Levofloxacin is a metabolite of Levofloxacin. Levofloxacin, a synthetic fluoroquinolone, is an antibacterial agent that inhibits the supercoiling activity of bacterial DNA gyrase, halting DNA replication.

Hydroxy desmethyl Bosentan (Ro 64-105) is a Bosentan metabolism produced by the cytochrome P450 enzymes CYP2C9 and CYP3A4 in the liver. Bosentan is a competitive and dual antagonist of endothelin-1 (ET) for the ETA and ETB receptors with Ki of 4.7 nM and 95 nM in human SMC, respectively. Bosentan can be used in treatment of pulmonary arterial hypertension.

Ezetimibe phenoxy glucuronide is the active metabolite of Ezetimibe. Antihyperlipoproteinemic activity. Ezetimibe is a potent cholesterol absorption inhibitor.

N-Desmethyl Pimavanserin (AC-279) is the active metabolite of Pimavanserin. Pimavanserin is a selective inverse agonist of the 5-HT2A receptor with pIC50 and pKd of 8.73 and 9.3, respectively.

3-Desacetyl Cefotaxime lactone is the active metabolite of Cefotaxime. Cefotaxime sodium salt is a third-generation cephalosporin antibiotic.

Trimetazidine-N-oxide is the major active metabolite of Trimetazidine. Trimetazidine is a selective long chain 3-ketoyl coenzyme A thiolase inhibitor with an IC50 of 75 nM. Trimetazidine is an effective antianginal agent, has anti-oxidant, anti-inflammatory, antinociceptive and gastroprotective properties.