Adverse reactions are ranked according to system organ class, using the following convention: very common (≥ 1/ 10), common (≥ 1/ 100 to < 1/ 10), uncommon (≥ 1/ 1,000 to < 1/ 100), rare (≥ 1/ 10,000 to < 1/ 1,000), very rare (< 1/ 10,000), not known (cannot be estimated from the available data).