Rare side effects include diarrhea, skin rash, urticaria, dry skin, cold sweat, hair loss, nausea, vomiting, indigestion, metallic taste, abdominal pain, biliary pain, cholecystitis, constipation, stomatitis, flatulence, dizziness, fatigue, anxiety, depression, sleep disorder, arthralgia, myalgia, back pain, cough and rhinitis.