excessive thirst and urination on valtrex! Please help

[Guest guest]

Hi everyone,

My son has been on valtrex 500 mg 3xdaily for the last three months and we have

seen some improvement in social skills and language. But he has excessive thirst

and urination. It happens almost every two days or sometimes twice a week. He

recently had his creatinin level checked and it is within normal range. I am

thinking of checking a urinalysis to see if he has any proteinuria or casts as

valtrex may cause renal failure. Some days my son drinks almost 3 liters of

water and pees three times every hour. Has anyone experienced similar side

effects? Could it be related to diflucan? I am really concerned now and have

been thinking of reducing dose to a total of 1000 mg/day. My dan did'nt like the

500 mg 3xdaily dose as total dose per day should not exceed 1000 mg. Any input

will be appreciated.

Thanks

is