Common side effects (seen in more than 1, but less than 10 in 100 people taking Vectibix) were: • infusion type reactions (which may include signs and symptoms such as chills; and/ or pyrexia (fever or high temperature); • hypomagnesaemia (low magnesium levels in the blood); • hypocalcaemia (low calcium levels in the blood); • hypokalaemia (low potassium levels in the blood); • dehydration; • headache; • conjunctivitis (eye inflammation); growth of eyelashes and increased lacrimation (flow of tears); ocular hyperaemia (redness of the eye); dry eye; eye pruritus (itchy eyes); • pulmonary embolism (blood clot in the lung); • stomatitis (mouth ulcers and cold sores); mucosal inflammation (inflammation of the mouth); dry mouth; • onycholysis (loosening of the nails); • hypertrichosis (excess hair growth); alopecia (hair loss); • nasal dryness.