Lactusan Syrup Vials from 25 to 300 ml. Lactusan tablets Tablets weighing 0.5 g. Prelax Syrup in bottles from 25 to 750 ml, in bags of 10 g, 20 g. Prelax baby Liquid in bottles from 25 to 250 ml, in bags from 4 ml to 8 ml. Prelax Light In bags from 4 g to 8 g