>10%: Gastrointestinal: Stomach cramping, constipation, nausea, vomiting,
dark stools, GI irritation, epigastric pain, nausea
1% to 10%:
Gastrointestinal: Heartburn, diarrhea
Genitourinary: Discolored urine
Miscellaneous: Staining of teeth
<1%: Dermatologic: Contact irritation