Final answer:
Risperidone (Risperdal) can have several adverse effects, including issues with motor control and extrapyramidal symptoms.
Step-by-step explanation:
Risperidone (Risperdal) is known to have several adverse effects, one of which is its impact on the motor control system. As an antipsychotic drug that antagonizes D2 (dopamine) and serotonin type 2 receptors as well as alpha adrenergic and histaminergic H1 receptors, it can cause motor control issues. These issues may manifest as difficulty in fine movements, which could affect speech and limb movements, resembling the effects seen with drugs like haloperidol.
Beyond motor control, adverse effects of risperidone can include drowsiness, weight gain, diabetes, extrapyramidal symptoms (such as tremors and rigidity), and in some cases, it can lead to tardive dyskinesia with long-term use. It is crucial for patients and healthcare providers to monitor for these potential side effects, especially since the elderly may be more susceptible to them.