NX-1207 is an investigational new drug for BPH, whose chemical entity and mechanism of action remain undisclosed. Nymox Pharmaceutical Corporation recently completed studies of NX-1207 for treatment of benign prostatic hyperplasia (BPH).

Nylidrin, also known as _buphenine_ belongs to the category of drugs called _vasodilators_, which relax blood vessels and increase blood flow. Nylidrin is a peripheral vasodilator. Some studies show the evidence of improving cognitive impairment in selected i…

Nystatin is a polyene antifungal drug that has broad-spectrum fungicidal and fungistatic activity against a number of yeasts and fungi, most notably _Candida_ species.[L10686] It is one of the most effective antifungal agents synthesized by bacteria, in this …

OBE101 is a new weight loss drug developed by Obecure Ltd. It is a new formulation that is based on the vertigo medication, Betahistine. Obecure is repurposing betahistine, which is an H1 receptor agonist and partial H3 receptor antagonist for the treatment o…

OBI-3424 is under investigation in clinical trial NCT04315324 (Study to Test Akr1c3-activated Prodrug OBI-3424 (OBI-3424) in Patients With Relapsed/refractory T-cell Acute Lymphoblastic Leukemia (T-ALL)).

Ocimum tenuiflorum top is a plant/plant extract used in some OTC (over-the-counter) products. It is not an approved drug.

Ocrelizumab is a CD20-directed cytolytic antibody indicated for the treatment of patients with primary progressive or relapsing forms of multiple sclerosis (MS).[L42895] It is a second-generation recombinant humanized monoclonal IgG1 antibody that selectively…

Octamoxin, also known as _2-octylhydrazine_, is both an irreversible and nonselective monoamine oxidase enzyme inhibitor (MAOI) of the _hydrazine_ chemical class. This drug was used in the past as an antidepressant agent in the 1960s, however, has since been …

Acromegaly is a disorder caused by excess growth hormone (GH), increasing the growth of body tissues and causing metabolic dysfunction.[L14501] In most cases, it results from an anterior pituitary growth hormone-releasing tumor. Typically, the feet, hands, an…

Odanacatib is an inhibiter of cathepsin K which was originally developed be Merck & Co as a new treatment for osteoporosis [A19388]. The drug made it to phase III trials before abandoned due to increased stroke.

Odronextamab is a hinge-stabilized, fully human immunoglobulin G4 (IgG4)-based CD20×CD3 bispecific antibody currently evaluated for the treatment of relapsed/refractory (R/R) B-Cell non-Hodgkin lymphoma (NHL).[A254187,A254197] Preliminary studies have shown t…

Ohmefentanyl is an extremely potent opioid analgesic drug which selectively binds to the µ-opioid receptor. The Chinese have recorded ohmefentanyl as having a potency that is 6,300 times morphine. Ohmefentanyl is one of the most potent ? -receptor agonists kn…

Olanzapine is a thienobenzodiazepine classified as an atypical or second-generation antipsychotic agent.[A176996] The second-generation antipsychotics were introduced in the 90s and quickly gained traction due to their impressive efficacy, reduced risk for ex…

Boehringer Ingelheim Pharmaceuticals’ olcegepant (BIBN 4096) is a selective Calcitonin Gene-Related Peptide (CGRP) antagonist, a new class of drugs in development for the treatment of acute migraine attacks. Olcegepant is undergoing phase II trials in Europe …

Oleoyl-estrone (OE) is a fatty acid ester of estrone. This hormone occurs naturally and is found circulating in various animal species and humans. It has been shown in animal studies to promote the loss of body fat while maintaining body protein storage, main…

Severe acute pain occurs through nociceptive signalling involving both ascending and descending spinal pathways, in which nerve conductance is mediated in part by the action of opioid receptors.[A218041, A218046] Opioid receptors are seven-transmembrane G-pro…

Olmesartan belongs to the angiotensin II receptor blocker (ARB) family of drugs, which also includes [telmisartan], [candesartan], [losartan], [valsartan], and [irbesartan]. ARBs selectively bind to angiotensin receptor 1 (AT1) and prevent the protein angiote…

Olsalazine is an aminosalicylate and a prodrug of [mesalamine] (5-aminosalicylic acid, 5-ASA).[A257063] It was first developed for delivering mesalamine to the colon without the use of [sulfapyridine].[A257078] Olsalazine comprises two mesalamine molecules jo…

Omacetaxine mepesuccinate (formerly known as HHT or Homoharringtonine), is a cephalotaxine ester and protein synthesis inhibitor with established clinical activity as a single agent in hematological malignancies. Omacetaxine mepesuccinate is synthesized from…

Omapatrilat is an investigational drug that inhibits both neutral endopeptidase (NEP) and angiotensin converting enzyme (ACE). The inhibition of NEP elevates natriuretic peptide levels, increasing excretion of sodium in urine, dilating blood vessels, and redu…

Omaveloxolone (RTA-408) is a semisynthetic oleanane triterpenoid with antioxidant and anti-inflammatory properties.[A257534,A257539] Omaveloxolone acts as an activator of nuclear factor (erythroid-derived 2)-like 2 (Nrf2), a transcription factor that mitigate…

Omega-3 fatty acids are polyunsaturated fatty acids (PUFAs) with a double bond at the third carbon atom from the end of the carbon chain. The three types of omega-3 fatty acids involved in human physiology are ?-linolenic acid (ALA) (found in plant oils), eic…

Omega-3-acid ethyl esters are prescription drugs that contain eicosapentaenoic acid-ethyl ester (EPA) and docosahexaenoic acid-ethyl ester (DHA) that are used in combination with changes in diet to lower triglyceride levels in adults with severe (? 500 mg/dL)…

Originally approved by the FDA in 1989, omeprazole is a _proton-pump inhibitor_, used to treat gastric acid-related disorders. These disorders may include gastroesophageal reflux disease (GERD), peptic ulcer disease, and other diseases characterized by the ov…

OMS103HP is the first drug being developed to improve joint function following arthroscopic surgery, one of the most common procedures performed today by orthopedic surgeons.

Onasemnogene abeparvovec is an adeno-associated virus vector-based gene therapy that has been approved by the FDA in May 2019 for the treatment of infant patients (less than 2 years of age) with spinal muscular atrophy (SMA) and a specific mutation in the sur…

A competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties. Having been developed in the 19…

ONT-093 is an orally bioavailable inhibitor of P-glycoprotein (P-gp). In pre-clinical studies, ONT-093 could inhibit P-gp and reverse multidrug resistance at nM concentrations with no effect on paclitaxel pharmacokinetics.

Opaganib, also known as ABC294640, is a selective [sphingosine kinase-2 (SK2)](https://go.drugbank.com/polypeptides/Q9NRA0) inhibitor that is orally administered.[L27436] This drug has potential anticancer, anti-inflammatory, and antiviral activities, with po…

OPC-14523 is an antidepressant drug developed by Otsuka America Pharmaceutical.

OPC-51803 is the first nonpeptide vasopressin (AVP) V(2)-receptor-selective agonist. It is a V(2)-selective agonist that produces a significant antidiuretic action after single and multiple oral dosing in AVP-deficient and normal AVP states. It is useful ther…

Opium is the first substance of the diverse group of the opiates. It has been known for a long time, and the first evidence of a poppy culture dates from 5 thousand years by the Sumerians. During the years, opium was used as a sedative and hypnotic, but it wa…

The global prevalence of obesity is increasing rapidly. Obesity-related complications lead to significant personal and economic burden by reducing quality of life and increasing the cost of healthcare. In some individuals, diet and exercise are insufficient …

Ormeloxifene is a third-generation selective estrogen receptor (ER) modulator. In India, ormeloxifene has been marketed since the 1990s as a non-hormonal, non-steroidal oral contraceptive taken once a week,[A251450] and it was later introduced for the treatme…

A muscarinic antagonist used to treat drug-induced parkinsonism and to relieve pain from muscle spasm.

Oseltamivir (marketed as the product Tamiflu?), is an antiviral neuraminidase inhibitor used for the treatment and prophylaxis of infection with influenza viruses A (including pandemic H1N1) and B. Oseltamivir exerts its antiviral activity by inhibiting the a…

OSI-461 is a second-generation molecule belonging to a new class of drugs termed selective apoptotic anti-neoplastic drugs (SAANDs).

OSI-7836 is a member of the nucleoside class of cytotoxic drugs of which gemcitabine is the market leader. OSI Pharmaceuticals develops OSI-7836 as a next-generation gemcitabine. The anti-tumor activity of OSI-7836 appeares to be less schedule dependent than …

Osilodrostat is an inhibitor of 11?-hydroxylase (also referred to as CYP11B1), the enzyme that catalyzes the final step in the biosynthesis of endogenous cortisol.[L12123] It is used to lower circulating cortisol levels in the treatment of Cushing's disease, …

Osimertinib is an oral, third-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) drug developed by AstraZeneca Pharmaceuticals.[A7926,L43453] Its use is indicated for the treatment of metastatic non-small cell lung cancer (NSCL…

Ostrea edulis shell is an animal extract used in some OTC (over-the-counter) products. It is not an approved drug.

Oteracil is an adjunct to antineoplastic therapy, used to reduce the toxic side effects associated with chemotherapy. Approved by the European Medicines Agency (EMA) in March 2011, Oteracil is available in combination with [DB09257] and [DB09256] within the c…

Oteseconazole is an azole metalloenzyme inhibitor that targets fungal CYP51.[L41635] CYP51, also known as 14? demethylase, participates in the formation of ergosterol, a compound that plays a vital role in the integrity of cell membranes.[L41635,A247020] By b…

Oxabolone cipionate is the C17? cypionate ester and a prodrug of [DB01500]. A synthetic anabolic-androgenic (AAS) steroid, it is a derivative of 19-nortestosterone (nandrolone). It is considered as a performance enhancing drug thus is prohibited from use in s…

Oxaliplatin is a platinum-based chemotherapy drug in the same family as cisplatin and carboplatin. Compared to cisplatin the two amine groups are replaced by diamino cyclohexane (DACH) group to provide a greater antitumor effect.[A797] However, this leads to …

Oxaprotiline is a norepinephrine reuptake inhibitor of the tetracyclic antidepressant family that is related to maprotiline. This drug was never marketed. Oxaprotiline is a racemic mixture of the isomers levoprotiline and dextroprotiline. Levoprotiline is the…

Oxaprozin is a non-narcotic, non-steroidal anti-inflammatory drug (NSAID), used to relieve the inflammation, swelling, stiffness, and joint pain associated with osteoarthritis and rheumatoid arthritis.

Oxcarbazepine is an anti-epileptic medication used in the treatment of partial onset seizures that was first approved for use in the United States in 2000.[L8627,L8630,L8633] It is a structural derivative of [carbamazepine][A186101] and exerts a majority of i…

Oxogluric acid (?-Ketoglutarate) is not approved for any indication in the world but is an investigational drug in the United States. In the United States a phase I clinical trial is investigating whether oxogluric acid precursors found in nutritional supplem…

Oxolamine is not approved in the USA, it may be marketed elsewhere internationally as a cough suppressant [L5416]. It is listed as a prescription drug in New Zealand legislation [L5419]. Oxolamine is also approved in Taiwan for the treatment of respiratory tr…