Bismuth subcitrate/metronidazole/tetracycline

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Bismuth subcitrate/metronidazole/tetracycline
Combination of
Bismuth subcitrate Bismuth salt
Metronidazole Nitroimidazole antimicrobial
Tetracycline Tetracycline class antimicrobial
Clinical data
Trade names Pylera
AHFS/Drugs.com Professional Drug Facts
License data
ATC code
Legal status
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The drug combination bismuth subcitrate/metronidazole/tetracycline (trade name Pylera) is used for the treatment of peptic ulcer with an infection by the bacterium Helicobacter pylori . [1] It is taken by mouth. [1]

Contents

It is available as a generic medication. [2]

Medical uses

This combination is used together with omeprazole as a 'quadruple therapy' for the eradication of H. pylori and for preventing peptic ulcers that are caused by this bacterium. [3]

Contraindications

The drug must not be taken by pregnant women, because tetracycline is known to cause tooth and bone defects in unborn children. It is also contraindicated in breastfeeding women, children up to 12 years of age, and by patients with impaired liver or renal (kidney) function, because no studies in such persons have been conducted. Tetracycline is also likely to be harmful in liver patients. [3]

Adverse effects

Common side effects include diarrhea, nausea and dysgeusia (distortion of the sense of taste), especially a metallic taste. These effects are known from the drug's components as well as from other antibiotics. A very rare but dangerous reaction is Stevens–Johnson syndrome, a life-threatening condition affecting the skin, which has also been described under metronidazole and tetracycline as separate drugs. [3]

Interactions

Metronidazole in combination with alcohol causes severe reactions such as vomiting and flushes in many patients. Tetracycline resorption is reduced by dairy products, antacids and other products containing calcium, magnesium, aluminium as well as iron. [3]

Mechanism of action

Chemical properties

Bismuth subcitrate potassium is a salt of bismuth (Bi3+), potassium (K+) and citrate (C6H5O73−), containing about 25.6% (mass percent) bismuth, which is the active moiety, and 22.9% potassium. Tetracycline is contained as the hydrochloride, and metronidazole as the pure substance. [3]

Related Research Articles

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Peptic ulcer disease is a break in the inner lining of the stomach, the first part of the small intestine, or sometimes the lower esophagus. An ulcer in the stomach is called a gastric ulcer, while one in the first part of the intestines is a duodenal ulcer. The most common symptoms of a duodenal ulcer are waking at night with upper abdominal pain, and upper abdominal pain that improves with eating. With a gastric ulcer, the pain may worsen with eating. The pain is often described as a burning or dull ache. Other symptoms include belching, vomiting, weight loss, or poor appetite. About a third of older people with peptic ulcers have no symptoms. Complications may include bleeding, perforation, and blockage of the stomach. Bleeding occurs in as many as 15% of cases.

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<span class="mw-page-title-main">Barry Marshall</span> Australian physician (born 1951)

Barry James Marshall is an Australian physician, Nobel Laureate in Physiology or Medicine, Professor of Clinical Microbiology and Co-Director of the Marshall Centre at the University of Western Australia. Marshall and Robin Warren showed that the bacterium Helicobacter pylori plays a major role in causing many peptic ulcers, challenging decades of medical doctrine holding that ulcers were caused primarily by stress, spicy foods, and too much acid. This discovery has allowed for a breakthrough in understanding a causative link between Helicobacter pylori infection and stomach cancer.

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Omeprazole, sold under the brand names Prilosec and Losec, among others, is a medication used in the treatment of gastroesophageal reflux disease (GERD), peptic ulcer disease, and Zollinger–Ellison syndrome. It is also used to prevent upper gastrointestinal bleeding in people who are at high risk. Omeprazole is a proton-pump inhibitor (PPI) and its effectiveness is similar to that of other PPIs. It can be taken by mouth or by injection into a vein. It is also available in the fixed-dose combination medication omeprazole/sodium bicarbonate as Zegerid and as Konvomep.

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Lansoprazole, sold under the brand name Prevacid among others, is a medication which reduces stomach acid. It is a proton pump inhibitor (PPI), used to treat peptic ulcer disease, gastroesophageal reflux disease, and Zollinger–Ellison syndrome. Its effectiveness is similar to that of other PPIs. It is taken by mouth. Onset is over a few hours and effects last up to a couple of days.

Chlordiazepoxide/clidinium bromide is a fixed-dose combination medication used to treat peptic ulcers, irritable bowel syndrome (IBS), and gastritis. It contains chlordiazepoxide and clidinium bromide. It helps relieve stomach spasms, abdominal cramps, and anxiety related to gastric disorders. Librax is a fixed ratio of these two medications and, as such, is not typically prescribed with an accompanying dosage, but rather directions on how many capsules to take per day. It comes in a capsule taken by mouth, usually three or four times daily, before meals and at bedtime. Chlordiazepoxide is an anti-anxiety medication belonging to the benzodiazepine class. Its use in IBS is thought to be due to its calming ability for patients that have IBS symptoms that are worsened by anxiety. Clidinium bromide is a synthetic quaternary ammonium antimuscarinic, a sub-class of a family of drugs known as anticholinergics. It treats IBS by decreasing gastrointestinal motility.

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Bismuth subcitrate potassium is a bismuth salt used in combination with antibiotics and a proton pump inhibitor for the treatment of Helicobacter pylori infections.

Ranitidine bismuth citrate - drug, which has antisecretory and bactericidal action.

Anti-ulcer agents are medications or supplements used to cure the damage of mucosal layer on organs to prevent the damage from further extending to deeper regions to cause complications.

References

  1. 1 2 3 "Pylera- bismuth subcitrate potassium, metronidazole, tetracycline hydrochloride capsule". DailyMed. Retrieved 5 October 2021.
  2. "First Generic Drug Approvals 2023". U.S. Food and Drug Administration (FDA). 30 May 2023. Archived from the original on 30 June 2023. Retrieved 30 June 2023.
  3. 1 2 3 4 5 Austria-Codex (in German). Vienna: Österreichischer Apothekerverlag. 2017. Pylera 140 mg/125 mg/125 mg-Hartkapseln.