Kevin and Auntypebbles about the Numoisyn - my son got the liquid form and didn't go for the taste at all.  He said it had the color, consistency and what he thinks might be the taste of a spittoon!    

   And to quote him:  "Yuck".  So - I think we might try to get him the tablets. Auntypepples I think you mentioned having the tablets - what did they taste like to you?