Very Common (occurring in at least 1 in 10 patients treated) Common (occurring in at least 1 of 100 and less than 1 of 10 patients treated) Uncommon (occurring in at least 1of 1000 and less than 1 of 100 patients treated) Rare (occurring in at least 1 of 10,000 and less than 1 of 1000 patients treated) Not known (cannot be estimated from the available data)