The invention relates to the manufacture of a unit dose of a medicament for relieving the symptoms and/or restoring and/or protecting the neurons of patients suffering from Parkinsons disease. According to the invention, bees venom is used in an amount of between 33 and 330 micrograms inclusive, for the manufacture of a unit dose for subcutaneous injection, every one to six weeks, of a medicament for relieving the symptoms and/or restoring and/or protecting the neurons of patients suffering from Parkinsons disease. The invention finds use in particular in the field of pharmacy.