Syrup and tablets won't help you to dissolve an already formed stone, so if you already have stones , go for definitive removal like pcnl/ ursl/ rirs / eswl depending on the stone size, location and type.
Next Steps
consult a urologist for proper evaluation and treatment of the
kidney stone
Health Tips
get a ct urography to characterize the stone, number , location and treatment can be decided in a better way.