Nausea, vomiting, diarrhea, pain in the epigastric region (in patients with an anatomic gastritis or cholecystitis), atrioventricular blockade, a paradoxical reaction (an increase in the number of extrasystoles), hyperkalemia (nausea, vomiting, diarrhea, paresthesia) and hypermagnia (hyperemia of the face, thirst , bradycardia, lowering blood pressure, muscle weakness, fatigue, paresis, coma, areflexia, respiratory depression, convulsions).