Methylphenidate in Childhood Apraxia of Speech

Participants will receive twice daily doses of Methylphenidate Hydrochloride four hours apart. There will be three dosage schedules, determined based on three weight ranges (20-30kg; 30-40kg; ≥40kg). For children weighing 20-30kg, the maximum daily dose will be 20mg. For children weighing 30-40kg, the maximum daily dose will be 30mg. For children weighing ≥40kg, the maximum daily dose will be 40mg.

Participants will receive twice daily doses of placebo capsules. Gelatine placebo capsules will contain hypromellose, an inert substance.