No changes in haematology, immune organ weights/histology or infections in 6-month rat and 9-month monkey studies; not investigated further
“Chronic administration (6 months in rats, 9 months in monkeys) evidenced no significant change on the following parameters: haematology, immune system organ weights and histology, frequency of infections and tumours including in the two carcinogenicity studies. Therefore, immunotoxicity aspects were not investigated further.”