my 11 year old son became lethargic and had a loss of appetite al...

my 11 year old son became lethargic and had a loss of appetite almost immediately but what concerned us most was the tic that he developed on day 3 and 4 of using Zyrtec we discontinued use as of 3 o,clock yesterday (day 4) he has been sleeping for 14 hours we of course check on him constantly Please do not use this product if you see any of these side effects we never had any of this with clariton but will not take our chances We are going to try just the nose spray prescribed by the doctor no more over the counter meds for us.