Zantac Oral

In Depth

a certain blood disorder (porphyria)

Before using this medication, tell your doctor or pharmacist your medical history, especially of:

immune system problems
kidney problems
liver problems
lung diseases (e.g., asthma, chronic obstructive pulmonary disease-COPD)
other stomach problems (e.g., tumors)

Some symptoms may actually be signs of a more serious condition. Tell your doctor immediately if you have:

heartburn combined with lightheadedness/sweating/dizziness
chest pain or shoulder/jaw pain (especially with trouble breathing)
pain spreading to arms/neck/shoulders
unexplained weight loss

This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.

Kidney function declines as you grow older. This medication is removed by the kidneys. Therefore, elderly people may be at greater risk for side effects while using this drug. Caution is advised when using this drug in the elderly because they may be more sensitive to its effects, especially confusion and dizziness.

Ranitidine should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor.

Ranitidine passes into breast milk. Consult your doctor before breast-feeding.

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