Table 2.

Summary of the studies about M. pruriens effects in PD patients.

Article	Parkinson's disease symptoms
	Motor symptoms		Nonmotor symptoms	Quality of life	Disability	Therapy complications
	Voluntary	Involuntary
(“An Alternative Medicine Treatment for Parkinson's Disease: Results of a Multicenter Clinical Trial. HP-200 in Parkinson's Disease Study Group,”) [30]	✔			✔	✔
Katzenschlager et al. [31]	✔	✔
Cilia et al. [32]	✔	✔		✔	✔	✔
Cilia et al. [33]	✔	✔	✔	✔	✔
Sakata et al. [34]	✔	✔