My 3.5 yo suffers from constipation and holds her bm, she was prescribed norgalax enema. I gave this to her at 7.30pm and it didn't work. Now I am very concerned its sitting there is her system. I also read that it is not recommended for children under 12! It's now 10.30 and she is in bed asleep. Do I need to be concerned, should I take her to emergency cntr or just take her to docs in morning?