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Ranitidine is a custom pharmacy drug that is classified as an H2 blocker. Ranitidine works by lowering the amount of acid that is produced within the stomach. It is prescribed to treat gastroesophageal reflux disease (GERD), Zollinger-Ellison syndrome, ulcers, and other medical conditions that may result from excess acid. Ranitidine may relieve certain symptoms caused by sour stomach and indigestion.

Ranitidine is also utilized as a medication to help prevent stress ulcers and to treat certain types of gastrointestinal bleeding.


Prescription ranitidine is given as a standard tablet, an effervescent tablet, syrup, and effervescent granules, all of which are taken orally. It is often prescribed for once a day use at bedtime or sometimes two to four times per day. If you are prescribed the effervescent granules or effervescent tablets, be sure to dissolve your dose into a full glass of water before ingesting. Consult with your compounding pharmacist if you have questions about potency, average results seen by most users, etc.


Many varied side effects are possible with the use of almost any drug as the body adjusts to it, or even sometimes long after. Ranitidine may cause some unwanted side effects so it is important to talk to your doctor about all possible side effects to ensure that you will know what to watch for during your course. Common side effects seen with ranitidine are:

  • Stomach Pain
  • Diarrhea
  • Constipation
  • Vomiting
  • Nausea
  • Headache

If you experience any side effects that are increasing in intensity or persisting, see your doctor. Your doctor can evaluate your side effects and he or she will decide if you should discontinue use of ranitidine. Always follow your doctor's directions and instructions carefully.


It is important for your doctor to know your complete drug and medical history before beginning use of any drug. Never take ranitidine without your doctor's approval.

There may be many possible contraindications for this drug. Discuss all possible contraindications with your doctor.

Ranitidine is contraindicated for the following conditions or situations:

  • Ulcer Diseases with Positive Helicobacter Antrum-Gastritis
  • Hypersensitivity or Allergy to Ranitidine and/or its Ingredients

WARNING: Ranitidine is excreted into breast milk. Do not use this drug if you are breastfeeding or about to begin breastfeeding.

NOTE: Ranitidine may be contraindicated for pregnancy. Do not use this drug if you are pregnant or attempting to become pregnant unless you have consulted with your doctor who is aware of your complete medical history, etc. Use of ranitidine is recommended only if deemed absolutely necessary by your doctor and she or he feels the benefits are greater than the risks.

Ranitidine may be contraindicated for the conditions listed below. If any apply to you, be sure to have an in-depth discussion with your doctor before beginning use of ranitidine in any form.

  • Porphyria
  • Liver Disease
  • Kidney Disease
  • "It is rare to find health professionals who are so willing to educate the patient on what they need to know."

    Clair C. | West Hollywood, CA