Randomized, Double-blind, Placebo-controlled Trial to Measure the Efficacy and Safety of Vitamin D3 in Patients With Fibromyalgia.

Fibromyalgia is a disease that significantly decreases the quality of life of people who suffer from it, has great repercussions at the socio-economic level due to the incapacity it produces. It is characterized by generalized pain, fatigue, sleep disorders, psychological stress and mental alterations, besides presenting painful points in different parts of the body to physical examination. Having few effective treatments is necessary to explore new options in their management to improve the general conditions of the patient. Previous studies have shown that patients with fibromyalgia have had low levels of vitamin D in the blood, a favorable response from post-vitamin D supplementation has been seen. This vitamin has been associated with pain pathways and with increased The perception of the same when it is in smaller amount. We will select patients with Fibromyalgia diagnosis from the external consultation of Rheumatology of the University Hospital "Dr. José Eleuterio González "of the UANL, over 18 years old who have not been previously supplemented with vitamin D, will initially be measured in blood of vitamin D, in addition to calcium as a safety measure, we will have a group that will only receive placebo and Another that will be supplemented with 50 thousand units weekly for 12 weeks, we will apply a questionnaire that measures pain scale and another one that measures the impact of the disease in the daily life of the patient, this will be done in a beginning and at the end of the 12 weeks .