Omeprazole drug data and news

Omeprazole drug data, resources, and news articles (when available). Onconews.org provides news on cancer research. This section, which includes profiles on medicines that may or not be cancer-related is in beta form. If things run smoothly we will be releasing a new format late in the summer of 2006.

Generic name Omeprazole
Brand Names/Synonyms Antra; Antra Mups; Audazol; Aulcer; Belmazol; CCRIS 7099; Ceprandal; Danlox; Demeprazol; Desec; Dizprazol; Dudencer; Elgam; Emeproton; Epirazole; Erbolin; Esomeprazole; Esomeprazole Magnesium; Exter; Gasec; Gastrimut; Gastroloc; Gibancer; H 168/68; HSDB 3575; Indurgan; Inhibitron; Inhipump; Lensor; Logastric; Lomac; Losec; Mepral; Miol; Miracid; Mopral; Morecon; Nexium; Nexium Iv; Nilsec; Nopramin; OMEP; OMEPRAZOLE; OMP; OMZ; Ocid; Olexin; Omapren; Omebeta 20; Omed; Omegast; Omepral; Omeprazol [Inn-Spanish]; Omeprazole; Omeprazole [Usan:Ban:Inn:Jan]; Omeprazolum [Inn-Latin]; Omeprazon; Omeprol; Omesek; Omezol; Omezolan; Omid; Omisec; Omizac; Ompanyt; Ortanol; Osiren; Ozoken; Paprazol; Parizac; Pepticum; Pepticus; Peptilcer; Prazentol; Prazidec; Prazolit; Prilosec; Prilosec Otc; Procelac; Proclor; Prysma; Ramezol; Regulacid; Result; Sanamidol; Secrepina; Tedec Ulceral; Ulceral; Ulcesep; Ulcometion; Ulcozol; Ulcsep; Ulsen; Ultop; Ulzol; Victrix; Zefxon; Zegerid; Zepral; Zimor; Zoltum
Indication For the treatment of gastroesophageal reflux disease
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Description Not Available
Pharmacology Omeprazole is a compound that inhibits gastric acid secretion and is indicated in the treatment of gastroesophageal reflux disease (GERD), the healing of erosive esophagitis, and H. pylori eradication to reduce the risk of duodenal ulcer recurrence. Omeprazole belongs to a new class of antisecretory compounds, the substituted benzimidazoles, that do not exhibit anticholinergic or H2 histamine antagonistic properties, but that suppress gastric acid secretion by specific inhibition of the H+/K+ ATPase enzyme system at the secretory surface of the gastric parietal cell. Because this enzyme system is regarded as the acid (proton) pump within the gastric mucosa, Omeprazole has been characterized as a gastric acid-pump inhibitor, in that it blocks the final step of acid production. This effect is dose-related and leads to inhibition of both basal and stimulated acid secretion irrespective of the stimulus.
Mechanism Of Action Omeprazole is a proton pump inhibitor that suppresses gastric acid secretion by specific inhibition of the H+/K+-ATPase in the gastric parietal cell. By acting specifically on the proton pump, Omeprazole blocks the final step in acid production, thus reducing gastric acidity.
Omeprazole News
(When available)

STABILITY OF OMEPRAZOLE SODIUM AND PANTOPRAZOLE SODIUM DILUTED FOR ...  Apr 21, 2006
Currently, the manufacturers of omeprazole and pantoprazole injections recommend that infusions prepared by dilution in NaCl 0.9% should be used within 12 or 3 ... - The Journal of Pharmacy Technology

'Medicare Part D': What the Benefit Means For Medical Technology  May 15, 2006
In this case, the very effective and safe proton-pump inhibitor (PPI) drugs (such as omeprazole) actually have a viable alternative in the form of minimally ... - ePrairie,

EXCELLUS BLUECROSS BLUESHIELD LAUNCHES CAMPAIGN TO HELP CONSUMERS ...  May 15, 2006
...very expensive brand drugs. "One of the most overlooked generic options for treating heartburn is omeprazole. About 10 percent of ... - Empire Information Services, Inc. (press release),

Santarus Reports First Quarter 2006 Financial Results; Conference ...  May 4, 2006
...-- US Food and Drug Administration (FDA) approval of a New Drug Application (NDA) for ZEGERID(R) (omeprazole/sodium bicarbonate) Capsules in late February. ... - Genetic Engineering News,

Goitre and reduced acid secretion  May 10, 2006
...reduction included infection with the ulcer germ H pylori, an autoimmune inflammation of the stomach or taking the acid lowering medication omeprazole – Losec ... - ABC Message Stick,

Zentiva NV 1st Quarter Results 2006  May 2, 2006
...three months of 2006 included the anti-inflammatory Coxtral (nimesulide), the analgesic Tralgit (tramadol), the anti-ulcer drug Helicid (omeprazole) and the ... - PharmaLive.com (press release),

Nasal spray dependence is a hard habit to break  May 10, 2006
...over the counter. These drugs were the standard treatment for acid reflux before Prilosec (omeprazole) was developed. Q: I have ... - Daily Press,

Schwarz Pharma First-Quarter Profit Doubles (Update2)  Apr 24, 2006
The product, generic omeprazole, helped sales peak at 1.5 billion euros in 2003 and is still its single-biggest source of revenue. ... - Bloomberg

Off-Label Drug Use  May 2, 2006
In the gastrointestinal system, we recently saw the human drug omeprazole licensed for use in the horse for the treatment of gastric ulcers (GastroGard). ... - TheHorse.com,

Schwarz Pharma Oper Profit Above Forecast  Apr 25, 2006
1014 GMT [Dow Jones] Schwarz Pharma (SRZ.XE) operating profit is ahead of expectations due to strong omeprazole sales and lower R&D expenses, says Bear Stearns ... - newratings.com

NSAIDs: Pain Relief or Pain in the Gut?  May 2, 2006
Anti-ulcer medication (eg omeprazole, ranitidine, cimetidine) can be used in horses which have to be on NSAIDs long term due to musculoskeletal problems. ... - TheHorse.com,

Thyroxine in Goiter, Helicobacter pylori Infection, and Chronic ...  Apr 26, 2006
...was prospectively studied in 11 patients treated with thyroxine before and after H. pylori infection and both before and during treatment with omeprazole in 10 ... - New England Journal of Medicine (subscription),

A method for weaning yourself off nasal spray  May 2, 2006
...over the counter. These drugs were the standard treatment for acid reflux before Prilosec (omeprazole) was developed. Q. I have ... - Charlotte Observer,

POZEN Reports First Quarter 2006 Results  Apr 27, 2006
...on a Special Protocol Assessment (SPA) for the pivotal Phase III clinical trial for its product candidate PN 200, the combination of omeprazole and naproxen ... - Genetic Engineering News,

Santarus to Present at UBS Global Specialty Pharmaceuticals ...  Apr 18, 2006
...life for patients. The company's products are immediate-release formulations of omeprazole, a widely prescribed PPI. The company's ... - Genetic Engineering News,

Santarus to Hold First Quarter 2006 Financial Results Conference ...  Apr 24, 2006
...patients. The company's products are immediate-release formulations of omeprazole, a widely prescribed proton pump inhibitor (PPI). ... - Genetic Engineering News,

Indigestion defined  Apr 29, 2006
...adenosine triphosphate enzyme system�. Examples are omeprazole, pantoprazole, esomeprazole and lansoprazole. H. pylori can be ... - Malaysia Star,

First Quarter Report 2006: Schwarz Pharma with a Good Start  Apr 25, 2006
The company’s US subsidiary KUDCo maintained last year’s level of generic omeprazole sales in the first three months of 2006. ... - PharmaLive.com (press release),

Dosage Forms Oral tablets
Drug_Category Anti-ulcer Agents; Proton-pump Inhibitors; ATC:A02BC01; ATC:A02BC05
Absorption Absorption is rapid, Absolute bioavailability (compared to intravenous administration) is about 30-40% at doses of 20-40 mg
Interactions -->Interactions for Omeprazole:

Other

Omeprazole can prolong the elimination of diazepam, warfarin and phenytoin, drugs that are metabolized by oxidation in the liver. Although in normal subjects no interaction with theophylline or propranolol was found, there have been clinical reports of interaction with other drugs metabolized via the cytochrome P-450 system (e.g., cyclosporine, disulfiram, benzodiazepines). Patients should be monitored to determine if it is necessary to adjust the dosage of these drugs when taken concomitantly with omeprazole.

Because of its profound and long lasting inhibition of gastric acid secretion, it is theoretically possible that omeprazole may interfere with absorption of drugs where gastric pH is an important determinant of their bioavailability (e.g., ketoconazole, ampicillin esters, and iron salts). In the clinical trials, antacids were used concomitantly with the administration of omeprazole.

Combination Therapy with Clarithromycin

Co-administration of omeprazole and clarithromycin may result in increases in plasma levels of ompeprazole, clarithromycin, and 14-hydroxy-clarithromycin.

Concomitant administration of clarithromycin with cisapride, pimozide, or terfenadine is contraindicated.

There have been reports of an intereaction between erythromycin and astemizole resulting in QT prolongation and torsades de points. Concomitant administration of erythromycin and astemizole is contraindicated. Because clarithromycin is also metabolized by cytochrome P450, concomitant administration of clarithromycin with astemizole is not recommended.

Toxicity confusion, drowsiness, blurred vision, tachycardia, nausea, diaphoresis, flushing, headache, and dry mouth, LD50=
Organisms Affected Humans and other mammals
Chemical IUPAC Name 5-methoxy-2-[(4-methoxy-3,5-dimethyl-pyridin-2-yl)methylsulfinyl]-3H-benzoimidazole
Chemical Formula C17H19N3O3S
Molecular Weight 345.417 g/mol
Smiles String CC1=CN=C(C(=C1OC)C)CS(=O)C2=NC3=C(N2)C=C(C=C3)OC
Melting Point 156°C
Water Solubility 82.3 mg/L
State white to off-white crystalline powder
LogP/Hphobicity 1.166
Isoelectric Point Not Available
Biotransformation Hepatic
Half Life 0.5-1 hour
Protein Binding [%] 95%
RxList Link RXlist
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Drug Reference http://www.pdrhealth.com/drug_info/rxdrugprofiles/drugs/pri1350.shtml
http://www.drugs.com/cons/Omeprazole.html
http://www.rxlist.com/cgi/generic/omepra.htm
Drug Type Approved Drug
Accession No APRD00446
CAS Registry Number 73590-58-6
KEGG Compound ID C07324
PubChem ID SID:189970
PharmGKB ID Not Available
SwissProt ID Not Available
GenBank ID Not Available
Drug ID Number [DIN] 2260867

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