The investigators plan to assess the potential efficacy of repeated (monthly) injections of bee venom on the motor symptoms of Parkinson disease over a period of one year. The investigators will also assess the potential effects of this treatment on disease progression. All assessments will be conducted in comparison to placebo (saline injections).
The purpose of this study is to evaluate the efficacy of repeated (monthly) injections of bee venom on motor symptoms of Parkinson's disease over a period of one year, also the potential effects of this treatment on disease progression compared to placebo (saline injections).