Risperidone Versus Methylphenidate in Treatment of Preschool Children With Attention-Deficit Hyperactivity Disorder
Fariba Arabgol1, Leily Panaghi2, Vahid Nikzad3
1Behavioral Science Research Center, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran.
Insights
Risperidone and Methylphenidate (MPH) showed similar effectiveness in treating preschool ADHD over six weeks. Both medications improved symptoms, though MPH caused more anorexia, while risperidone caused drowsiness and anorexia.
Area of Science:
- Pediatric Psychiatry
- Child Psychology
- Pharmacology
Background:
- Attention Deficit Hyperactivity Disorder (ADHD) is a prevalent psychiatric condition in preschool-aged children.
- Early diagnosis and intervention are crucial for managing ADHD symptoms and improving long-term outcomes.
Purpose of the Study:
- To compare the efficacy and tolerability of Risperidone versus Methylphenidate (MPH) in preschool children diagnosed with ADHD.
- To evaluate treatment outcomes using standardized ADHD rating scales and assess adverse effects.
Main Methods:
- A 6-week, double-blind clinical trial involving 33 preschool children (aged 3-6 years) with ADHD.
- Participants received either risperidone (0.5-1.5 mg/d) or methylphenidate (5-20 mg/d) in divided doses.
- Outcomes were measured using the Parent ADHD Rating Scale and Conners Rating Scale, with assessments at baseline and at 2, 4, and 6 weeks.
Main Results:
- No significant differences were observed between risperidone and MPH on the Parent ADHD Rating Scale or Parent Conners Rating Scale scores.
- Both treatment groups demonstrated significant improvement in ADHD symptoms over the 6-week study period.
- Common side effects included anorexia with both medications, daytime drowsiness with risperidone, and anorexia with methylphenidate.
Conclusions:
- Risperidone appears to be an effective and well-tolerated treatment option for ADHD in preschool children, comparable to MPH.
- Further research is warranted to fully understand the long-term benefits and risks of risperidone, especially in children with comorbid conditions.
Background:
Attention Deficit Hyperactivity Disorder (ADHD) is a common psychiatric diagnosis among preschool children.
Objectives:
The aim of this study was to examine the Risperidone treatment compared to Methylphenidate (MPH) in preschool children with ADHD.
Patients And Methods:
Thirty three outpatient preschool children, aged 3-6 years, diagnosed with ADHD (The diagnosis of ADHD was established by two child and adolescent psychiatrists according to the DSM-IV-TR criteria), participated in a 6-week, double-blind clinical trial with risperidone (0.5-1.5 mg/d) and methylphenidate (5-20 mg/d), in two divided doses. Treatment outcomes were assessed using the Parent ADHD Rating Scale and Conners Rating Scale. Patients were assessed by a child psychiatrist at baseline, 2, 4 and 6 weeks after the medication started. Side effects were also rated by side effects questionnaire.
Results:
There were no significant differences between the two protocols on the Parent ADHD Rating Scale scores (P > 0.05) and Parent Conners Rating Scale scores (P > 0.05). Both groups showed a significant improvement in ADHD symptoms over the 6 weeks of treatment for parent ADHD Rating Scale (P < 0.001) and Parent Conners Rating Scale (P < 0.001). The most common adverse effects seen with risperidone were daytime drowsiness and anorexia (20%), and with methylphenidate it was anorexia (55%).
Conclusions:
Results of this study show that risperidone may be effective and well tolerated for ADHD in preschool children, but more researches are needed to clarify the potential benefits and adverse effects in long term use and comorbid conditions.
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