What side effects may I notice from receiving Bethanechol?

Side effects that you should report to your doctor or health care professional as soon as possible:
-breathing problems
-fast, irregular heart rate
-feeling faint or lightheaded, falls
-low blood pressure
-seizure
-vomiting

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
-diarrhea
-headache
-flushing
-more saliva, teary
-stomach pain, gas, nausea
-unusual sweating
-urgent need to pass urine

This list may not describe all possible side effects for Bethanechol. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.