June 24, 2024

Ranitidine 150 mg, commonly known by its brand name Zantac, is a medication primarily used to reduce stomach acid production. It belongs to a class of drugs known as H2 blockers. Ranitidine is commonly prescribed to treat conditions such as heartburn, acid indigestion, and stomach ulcers. Understanding when to take ranitidine and its uses can help individuals manage their symptoms effectively.

What Is Ranitidine Used For?

  1. Acid Reflux: Aclioc 150 contains ranitidine is often used to treat symptoms of acid reflux, such as heartburn, chest pain, and regurgitation of stomach acid.

  2. Peptic Ulcers: It is also used to heal and prevent ulcers in the stomach and intestines caused by excessive stomach acid.

  3. Gastroesophageal Reflux Disease (GERD): Ranitidine can be prescribed to manage the symptoms of GERD, a chronic condition where stomach acid flows back into the esophagus, causing irritation.

  4. Zollinger-Ellison Syndrome: In rare cases, ranitidine is used to treat this condition, which causes the stomach to produce too much acid.

When to Take Ranitidine?

  1. For Heartburn: If you experience heartburn or acid indigestion, take ranitidine as soon as symptoms occur or as directed by your healthcare provider. It can be taken with or without food.

  2. For Ulcers: If you have been diagnosed with a peptic ulcer, follow your healthcare provider’s instructions on when and how to take ranitidine. Typically, it is taken once or twice daily, with or without food, for a specified period.

  3. For GERD: Ranitidine is often taken before meals or at bedtime to reduce stomach acid production and alleviate symptoms.

  4. For Zollinger-Ellison Syndrome: Your healthcare provider will determine the dosage and frequency of ranitidine based on your individual needs.

How Does Ranitidine Work?

Ranitidine works by blocking the action of histamine on the stomach cells, which reduces the production of stomach acid. By decreasing acid production, ranitidine helps to relieve symptoms associated with excess stomach acid, such as heartburn and acid indigestion.

Precautions and Side Effects

  • Ranitidine is generally well-tolerated, but some people may experience side effects such as headache, dizziness, constipation, or diarrhea.

  • Long-term use or high doses of ranitidine may increase the risk of certain health issues, including pneumonia, bone fractures, and vitamin B12 deficiency.

  • It’s important to talk to your healthcare provider before starting ranitidine, especially if you have a history of kidney or liver disease, or if you are pregnant or breastfeeding.


Ranitidine is a widely used medication for the treatment of conditions related to excess stomach acid production. Understanding when to take ranitidine and its uses can help individuals manage their symptoms effectively. However, it’s important to use this medication under the guidance of a healthcare provider to ensure safety and effectiveness.


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