Most types of childhood arthritis are called juvenile idiopathic arthritis (JIA). JIA causes one or more joint pains and inflammation for at least six weeks. The dosage will vary according to our symptoms, but the full glass of water is required with each dose in tablet form. If you have been in the liquid form of prescription drugs, ensure it is properly measured to get the correct dose. If a dose of prescription drugs is missed, in some circumstances it needs to be okay to quickly take that dose when you remember, and after that return back for the regular dosing schedule.