• Active Ingredient: Lansoprazole
  • 30 mg, 15 mg
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What is Lanzet?

The active ingredient of Lanzet brand is lansoprazole. Lansoprazole is a proton pump inhibitor. Lansoprazole decreases the amount of acid produced in the stomach.

Used for

Lanzet is used to treat diseases such as: Aspiration Pneumonia, Barrett's Esophagus, Duodenal Ulcer, Duodenal Ulcer Prophylaxis, Erosive Esophagitis, Gastritis/Duodenitis, GERD, Helicobacter Pylori Infection, Multiple Endocrine Adenomas, NSAID-Induced Gastric Ulcer, NSAID-Induced Ulcer Prophylaxis, Stomach Ulcer, Systemic Mastocytosis, Zollinger-Ellison Syndrome.

Side Effect

Possible side effects of Lanzet include: nausea; increased cough; Diarrhea; trembling; chest pain; drowsiness; Abdominal or stomach pain.

How to Buy Lanzet online?

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Mixing Lanzet with herbal remedies and supplements

Do not take St John's wort, the herbal remedy for depression, while you're taking Lanzet. St John's wort may stop Lanzet working as well as it should.


This medication contains Lanzet. Do not take Prevacid, Prevacid Solu Tab, or Prevacid 24HR if you are allergic to Lanzet or any ingredients contained in this drug.

Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center immediately.

2. Key facts

  • It's usual to take Lanzet once a day in the morning.
  • For severe illness, you can take it twice a day - in the morning and in the evening.
  • Common side effects include headache, diarrhoea and stomach pain. These tend to be mild and go away when you stop taking the medicine.
  • Lanzet is called by the brand name Zoton FasTabs.
Read more about where to order Cardipen tablets for treat Heart Failure

What Is Prevac >

Prevacid is the brand name for Lanzet, a drug used to treat ulcers, gastroesophageal reflux disease (GERD), and Zollinger-Ellison syndrome.

The drug is also available over-the-counter (OTC) at a lower strength to relieve heartburn and the symptoms of acid reflux.

Prevacid belongs to a class of drugs called proton pump inhibitors (PPI) that decrease the amount of acid produced in the stomach.

PPIs block the enzyme in the wall of the stomach that produces acid.

When acid is reduced, the stomach and esophagus can heal. There's some evidence that using this drug can also help prevent ulcers.

Prevacid is available in a delayed release capsule and a “SoluTab” that disintegrates in your mouth.

Lanzet is also available in a powder kit to be compounded into an oral suspension under the name First-Lanzet.

Prevacid was FDA approved in 1995 and is marketed in the United States by Novartis.

Q: What long-term effects can Prevacid have? My son has been on 2.5 ml twice a day for about a year!

A: Prevacid (Lanzet) is an anti-ulcer drug of the type known as "Proton Pump Inhibitors (PPI)." Prevacid reduces the amount of acid produced in the stomach, and is used in the treatment and prevention of stomach and intestinal ulcers and other conditions such as erosive esophagitis and Zollinger-Ellison syndrome. The most common side effects of Prevacid are headache, diarrhea, constipation, fatigue, dizziness, abdominal pain, nausea, and increased appetite. Less frequent, but more severe, adverse effects include pancreatitis, severe skin reactions, liver impairment, Stevens-Johnson syndrome, kidney impairment, and fractures. There is no recommended use for young children beyond 12 weeks. This is not a complete list of the side effects associated with Prevacid. For more specific information, consult with your doctor or pharmacist for guidance based on your health status and current medications, particularly before taking any action. When your doctor prescribes a new medication, be sure to discuss all your prescription and over-the-counter drugs, including dietary supplements, vitamins, botanicals, minerals, and herbals, as well as the foods you eat. Always keep a current list of the drugs and supplements you take and review it with your healthcare providers and your pharmacist. If possible, use one pharmacy for all your prescription medications and over-the-counter products. This allows your pharmacist to keep a complete record of all your prescription drugs and to advise you about drug interactions and side effects. Tell your health-care provider about any negative side effects from prescription drugs. You can also report them to the U.S. Food and Drug Administration by visiting or by calling 1-800-FDA-1088. For more specific information, consult with your doctor or pharmacist for guidance based on your health status and current medications, particularly before taking any action. Gregory Latham, MS, RPh

Why it’s used

Lanzet oral capsule is used to reduce the amount of acid in your stomach. It can be used to:

  • treat gastric ulcers (stomach ulcers) or duodenal ulcers
  • treat heartburn due to gastroesophageal reflux disease (GERD)
  • treat erosive esophagitis (a condition with inflammation and ulcers in the esophagus)
  • prevent and treat stomach ulcers due to use of nonsteroidal anti-inflammatory drugs (NSAIDs)
  • treat hypersecretory conditions (where your stomach makes too much acid), such as Zollinger-Ellison syndrome
  • treat a stomach infection caused by Helicobacter pylori (H. pylori) in combination with an antibiotic

Q: Ever since I started taking the generic version of Prevacid, which I take for GERD, I feel nauseated about an hour after I take the pill. Is there something different about the generic medication or the capsule in which it is housed?

A: Even though generic medications are determined by the U.S. Food and Drug Administration (FDA) to be equivalent to the brand-name drug, the inactive ingredients may be different and patients may react to them differently. Additionally, according to the literature available for Lanzet, the generic for Prevacid, nausea is a commonly reported side effect — though it may subside in time. If you're experiencing bothersome nausea, contact your health care provider. For more information about Lanzet, go to //

Drugs you should not use with Lanzet

Do not take these drugs with Lanzet. Doing so can cause dangerous effects in your body. Examples of these drugs include:

  • HIV drugs, such as atazanavir, nelfinavir, and drugs that contain rilpivirine. Lanzet may decrease the levels of these drugs in your body. This means that they won’t work as well to treat HIV. You may even develop HIV resistance. Resistance means that the HIV virus will no longer respond to treatment with this drug.
  • HIV drugs, such as saquinavir. Lanzet may increase the levels of this drug in your body, which could result in more side effects.

Generic Name: Lanzet (lan SOE pra zol)Brand Names: FIRST Lanzet, Prevacid

Medically reviewed by Sanjai Sinha, MD Last updated on Jan 11, 2019.


The active ingredient in PREVACID Delayed-Release Capsules and PREVACID SoluTab Delayed-Release Orally Disintegrating Tablets is Lanzet, a substituted benzimidazole, 2- methyl] sulfinyl] benzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is C16H14F3N3O2S with a molecular weight of 369.37. Lanzet has the following structure:

Lanzet is a white to brownish-white odorless crystalline powder which melts with decomposition at approximately 166°C. Lanzet is freely soluble in dimethylformamide; soluble in methanol; sparingly soluble in ethanol; slightly soluble in ethyl acetate, dichloromethane and acetonitrile; very slightly soluble in ether; and practically insoluble in hexane and water.

Lanzet is stable when exposed to light for up to two months. The rate of degradation of the compound in aqueous solution increases with decreasing pH. The degradation half-life of the drug substance in aqueous solution at 25°C is approximately 0.5 hour at pH 5.0 and approximately 18 hours at pH 7.0.

PREVACID is supplied in delayed-release capsules and PREVACID SoluTab is supplied in delayed-release orally disintegrating tablets (SoluTab) for oral administration.

PREVACID is available in two dosage strengths: 15 and 30 mg of Lanzet per capsule. Each delayed-release capsule contains enteric-coated granules consisting of 15 or 30 mg of Lanzet (active ingredient) and the following inactive ingredients: sugar sphere, sucrose, methacrylic acid copolymer, low substituted hydroxypropyl cellulose, starch, magnesium carbonate, talc, polyethylene glycol, titanium dioxide, polysorbate 80, hydroxypropyl cellulose, colloidal silicon dioxide, D&C Red No. 28, FD&C Blue No. 1, FD&C Green No. 3 1 , and FD&C Red No. 40.

PREVACID SoluTab is available in two dosage strengths: 15 and 30 mg of Lanzet per tablet. Each delayed-release orally disintegrating tablet contains enteric-coated microgranules consisting of 15 or 30 mg of Lanzet (active ingredient) and the following inactive ingredients: mannitol, methacrylic acid, hydroxypropyl cellulose, lactose monohydrate-microcrystalline cellulose sphere, triethyl citrate, crospovidone, polyacrylate, magnesium carbonate, aspartame 2 , glyceryl monostearate, hypromellose, magnesium stearate, citric acid, titanium dioxide, talc, artificial strawberry flavor, polyethylene glycol, polysorbate 80 and ferric oxide.

1 PREVACID 15 mg capsules only. 2 Phenylketonurics: PREVACID SoluTab Contains Phenylalanine 2.5 mg per 15 mg Tablet and 5.1 mg per 30 mg Tablet.

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