Inclusion Criteria:  Age above 18 years. Able to give informed consent. History of documented SARS-CoV-2 infection either by RT-PCR or antibody test. Symptoms related to Long Term COVID-19, defined as being investigated, diagnosed and followed by specialized infectious diseases physicians in the Long Term COVID-19 Outpatient Clinic, Central Region of Denmark, Aarhus University Hospital. Symptoms not attributable to other co-morbidity/condition.  Exclusion Criteria:  Symptoms of acute COVID-19, as defined by The Danish Health Authorities. Women who are pregnant or breastfeeding, or with a positive pregnancy test as determined by a positive urine beta-human chorionic gonadotropin test during screening Hypersensitivity to the active ingredient or to any excipient of the medicinal product Known allergy to soy or peanuts. Individuals with reduced kidney or liver-function. Patients in anticoagulant therapy with vitamin K antagonists. Any condition that, in the Investigator's opinion, will prevent adequate compliance with study therapy.