Final answer:
Antidepressants, such as SSRIs, primarily affect serotonin levels but can also have an impact on dopamine release. This can lead to Parkinson's disease-like symptoms in some patients.
Step-by-step explanation:
Parkinson's disease is caused by the degeneration of neurons that release dopamine. Antidepressants, such as selective serotonin reuptake inhibitors (SSRIs), work by blocking the reuptake of serotonin. While antidepressants primarily affect serotonin levels, they can also impact other neurotransmitters. Some antidepressants may increase dopamine release, and this increase in dopamine can cause Parkinson's disease-like symptoms in some patients.