Question: is 5mg of ritalin effective?
Answer: If 10 mg of Ritalin works better than 5 mg and as well as 15 mg, then the child should take only 10 mg. In certain cases, however, even 5 mg may make a child jittery or bring on a headache (both rare at 5 mg but possible). If such complaints persist for more than a day or two, no further Ritalin is offered.