A nurse is teaching the parents of a child who has ADHD about methylphenidate. Which of the following statements should the nurse include in the teaching?

A. Administering methylphenidate at bedtime is not recommended because it is a stimulant and can cause insomnia. It should typically be given in the morning and sometimes early afternoon to minimize sleep disturbances. B. Caffeine is a stimulant, and combining it with methylphenidate can increase the risk of side effects such as nervousness, jitteriness, and insomnia. Therefore, limiting caffeine intake is important. C. Methylphenidate is more likely to cause dry mouth rather than increased salivation. D. This medication is commonly associated with appetite suppression and weight loss, not weight gain. Monitoring the child's growth and nutritional intake is essential.