best time to give A-Z syrup to my daughter....and quantity should still be 5 ml or I should increase it to 10 ml ....her body weight is 19kg...

A. 5ML is just fine because your child is 19 kg so you should stick to the amount of medicine as per the weight of your child and you can give it once in a day and it is very heavy given to a child who is about 11 to 13 years of age and that a child who is maintaining a weight over 30 kg approximately