Evaluating the effect of parsnip syrup on sexual function in women with multiple sclerosis

INTERVENTION: Intervention 1: taking oral Parsnip syrup 10 cc, at morning and evening, for 4 weeks. Intervention 2: taking oral placebo syrup 10 cc, at morning and evening, for 4 weeks. Placebo taking oral Parsnip syrup 10 cc, at morning and evening, for 4 weeks taking oral placebo syrup 10 cc, at morning and evening, for 4 weeks Treatment ‐ Drugs CONDITION: Multiple sclerosis Multiple sclerosis. ; Multiple sclerosis PRIMARY OUTCOME: Sexual function. Timepoint: at the begining of drug usage and after 4 weeks of the drug usage. Method of measurement: MSISQ‐19 and FSFI Questionare. SECONDARY OUTCOME: Depression severity. Timepoint: at the begining of drug usage. Method of measurement: short form of Beck depression inventory. INCLUSION CRITERIA: INCLUSION CRITERIA: Definite diagnosis of multiple sclerosis (MS); married active; No evidence or symptom of new attack of MS; Age between 18 to 50 years; One month after last attack, at least. Exclusion criteria: Severe depression; Pregnancy; History of skin allergy to Apiaceae family (carrot, anise…); Taking drug for sexual disturbance such as serotonergic drugs ( citalopram, fluoxetine,…) or sildenafil during or until 2 weeks from the entrance to the study; Starting the disease modifying drugs (such as interferon) within the recent 3 months; Using the energy drinks; Taking the anticoagulant drugs such as warfarin, heparin, low molecular heparins or aspirin; Diabetes mellitus.