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Tagamet Side Effects

Tagamet Side Effects to Report

There are a number of less common but more serious side effects of Tagamet that you should report immediately to your healthcare provider. These include, but are not limited to:
 
  • Low levels of white blood cells
  • Slow heart rate (bradycardia) or fast heart rate (tachycardia)
  • Irregular heart rhythm (arrhythmia)
  • Confusion, agitation, or hallucinations
  • Symptoms of liver problems or hepatitis, including yellowing of the eyes or skin, pain in the upper right side of the abdomen, and dark urine
  • Signs of an allergic reaction, including an unusual rash, hives, itching, wheezing, trouble breathing, or swelling of the mouth or throat.
     

Rare Tagamet Side Effects

There are other Tagamet side effects that can occur. These side effects have occurred in very few patients taking Tagamet. In the case of these possible side effects, it is difficult to tell whether the problem is caused by the Tagamet or something else.
 
Some of these possible rare Tagamet side effects include, but are not limited to:
 

Side Effects of Tagamet: Summary

It is possible that you may experience some or none of the Tagamet side effects explained above. Unfortunately, there is no way for your healthcare provider to know beforehand if you will have side effects from a medicine that you have never tried. Therefore, make sure to let your healthcare provider know if you develop any side effects while taking Tagamet. Also, let your healthcare provider know if you develop something that "just does not seem right." While it may not be a side effect of Tagamet, your healthcare provider should be able to diagnose and treat the problem.
 
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;
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