>10% Nausea (12%) 1-10% Diarrhea (7%),Abdominal pain (7%),Melena (3%),Upper respiratory tract infection (2%),Constipation (2%),Anorexia (2%),Vomiting (2%),Asthenia (2%),Discolored tongue (2%),Headache (2%),Dyspepsia (2%),Dizziness (2%),Stool abnormality (1%),Duodenal ulcer (1%),Sinusitis (1%),Taste perversion (1%),Flatulence (1%),GI hemorrhage (1%),Pain (1%),Insomnia (1%),Anal discomfort (1%),Paresthesia (1%) Frequency Not Defined Anxiety,Confusion,Depression,Tinnitus,Weakness,Gray-black stool,Impaction,Muscle spasm,Neurotoxicity (rare)