Zantac is classified as an H2 (histamine-2) blocker drug, which primarily functions to decrease the production of acid in the stomach by altering the function of acid-producing cells. Histamine is a natural enzyme found in the stomach that stimulates the production of acid by the parietal cells. And by blocking this function, it helps to minimize the amount of acid in the stomach.
This drug is also proven effective in preventing ulcer recurrence when taken at low doses for prolonged periods of time.

•    May increase risk of developing pneumonia upon constant and prolonged use.
•    Not to be used by patients who are allergic to ranitidine.
•    Heartburn may oftentimes be confused with first symptoms of heart attack. Contact the doctor right away if chest pain is experienced.
•    Granules and effervescent tablets must be dissolved in water before taken in.

Before taking Zantac, check with your doctor especially if you previously have or is currently suffering from the following:
•    Kidney problems
•    Liver disorder
•    Porphyria

Inform your doctor or pharmacist if you are currently taking or have recently used any other medicines, including ones without prescription, or if you are under treatment for kidney problems.
The Ranitidine may affect the activity of other drugs so that in some cases these drugs will require a dosage adjustment or treatment interruption.

In the treatment of duodenal ulcer and GERD, the recommended dosage is one tablet of Zantac G (150 mg) twice daily (morning and evening) or two tablets both taken at night.
Follow this treatment for a period of 4-6 weeks even if there is some improvement in your condition.
In some cases Zantac can be administered four times daily for a period not exceeding 12 weeks.
Take this medicine with water.

In the treatment for the Zollinger-Ellinson syndrome, the initial dose of Zantac is one tablet three times per day. If necessary, this dose can be increased.
Patients suffering from Zollinger-Ellinson syndrome have received doses of up to 6 grams a day.

For children, the dose depends on the child's weight. Make sure the child takes the tablets prescribed by the doctor.
The usual dose varies from 2 to 4 mg/kg of weight. The maximum dose if 2 tablets of Zantac daily.


Important notice: Always consult a doctor before starting treatment with Voltaren. Check the leaflet inside for instructions.

Missed doses are considered missed. Do not attempt to double the dosage. Take the next scheduled dose instead. Never take extra medicine.

During unexpected and emergency situations, Call for help right away and notify your physician for such matter. You may contact a poison control center or have you taken to the nearest hospital for abrupt treatment; if the person is passed out and not breathing, call 911 or your local emergency response team.

•    Drinking alcohol as it can increase the severity of ulcer and make it longer to heal.

The following adverse reactions have been reported: intense headache, malaise, dizziness, drowsiness, insomnia, blurred vision, constipation, diarrhea, rash, nausea, vomiting, abdominal pain, swollen eyelids, face, lips, mouth or tongue, confusion, hair loss, kidney problems, impotence, fatigue, pancreatitis, jaundice.
If any of the above symptoms are severe or irritating, consult your doctor immediately.

•    Iron salts
•    Iron sulphate
•    Itraconazole
•    Ketoconazole