Montelukast in Parkinson Disease

Parkinson's disease (PD) is the second most common neurodegenerative disorder after Alzheimer's disease (AD). Clinical manifestations of PD can vary, but a formal diagnosis relies on the presence of bradykinesia with rigidity and/or rest tremor according to Movement Disorder Society (MDS) criteria for PD. Non-motor symptoms, such as hyposmia, constipation, depression, and rapid eye movement (REM) sleep behavior disorder, are common and can in many cases manifest before classical motor symptoms. In later years, more emphasis has been put on non-motor symptoms, especially in the early stages of PD and which is evident in the proposed prodromal PD criterion by MDS.

Inclusion Criteria: \- Age ≥ 50 years Both male and female will be included Negative pregnancy test and effective contraception. Diagnosed Parkinson's disease patient taking Levodopa Exclusion Criteria: \- Secondary causes of parkinsonism Patients taking anti-inflammatory drugs Atypical parkinsonian syndromes Prior stereotaxic surgery for Parkinson's disease Pregnancy and lactation Suffering from active malignancy Addiction to alcohol and / or drugs Known allergy to the studied medications