NPPB and fibromyalgia: Diagnosis of fibromyalgia.Women aged 20–70 years.Swedish-speaking.Safe method of contraception.Cobalamin value >250 pmol/L < 800 pmol/L.Kidney function value (relatively) GFR >60 .mL/min/1.73 m2.Liver function value.P-ALP 0.6–2.85 μkat/L.P-ALAT 0.15–1.13 μkat/L.Heart function value.Troponin-T <15 ng/L.NT-pro-BNP.<60 years <125 ng/L.NT-pro-BNP.60 years <300.Given consent to participate.