A device to help measure small medicine doses

Inclusion Criteria: * Male or female subjects, 30 years of age or older at the time of screening, with a diagnosis of idiopathic PD that is levodopa-responsive * Have a minimum of 4 levodopa dosing occasions per day * Stable medication within the last 4 weeks * Be judged by the investigator to be eligible for Flexilev treatment. * Subject (or caregiver, if applicable) demonstrates the understanding and correct use of the OraFID delivery system, as assessed by the investigator or designee. * Subject (or caretaker on behalf of the subject) is willing to use Patients Own Reporting module in the Parkinson registry and is willing to answer all questionnaires. * Have a smartphone (either patient or caregiver) * Ability to consent and comply with study specific procedures * Able to read and write in Swedish Exclusion Criteria: * Inability of subject or caregiver to use the device * Female patients who are pregnant or breast-feeding or who wish to become pregnant during the period of the clinical study and for three months later. * Female patients of childbearing age (less than 24 months after the last menstrual cycle) who do not use adequate contraception.