Very low-quality evidence suggests pirlindole as more effective at treating pain than moclobemide. Side effects of MAOIs may include nausea and vomiting. Central nervous system depressants
Central nervous system depressants include drug categories such as sedatives, tranquilizers, and hypnotics. A 2021 meta-analysis concluded that such drugs can improve the quality of life for fibromyalgia patients in the medium-term. Anti-seizure medication
The anti-convulsant medications gabapentin and pregabalin may be used to reduce pain. There is tentative evidence that gabapentin may be of benefit for pain in about 18% of people with fibromyalgia. It is not possible to predict who will benefit, and a short trial may be recommended to test the effectiveness of this type of medication. Approximately 6/10 people who take gabapentin to treat pain related to fibromyalgia experience unpleasant side effects such as dizziness, abnormal walking, or swelling from fluid accumulation. Pregabalin demonstrates a benefit in about 9% of people. Pregabalin reduced time off work by 0.2 days per week. Cannabinoids
Cannabinoids may have some benefits for people with fibromyalgia. However, as of 2022, the data on the topic is still limited. Cannabinoids may also have adverse effects and may negatively interact with common rheumatological drugs. Opioids
The use of opioids is controversial. As of 2015, no opioid is approved for use in this condition by the FDA. A 2016 Cochrane review concluded that there is no good evidence to support or refute the suggestion that oxycodone, alone or in combination with naloxone, reduces pain in fibromyalgia.
18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT)has become a widely used imaging tool in patients with suspected Large Vessel Vasculitis, due to the enhanced glucose metabolism of inflamed vessel walls. The combined evaluation of the intensity and the extension of FDG vessel uptake at diagnosis can predict the clinical course of the disease, separating patients with favourable or complicated progress. Acute onset of vasculitis-like symptoms in small children or babies may instead be the life-threatening purpura fulminans, usually associated with severe infection.In this table: ANA = antinuclear antibodies, CRP = C-reactive protein, ESR = erythrocyte sedimentation rate, dsDNA = double-stranded DNA, ENA = extractable nuclear antigens, RNP = ribonucleoproteins; VDRL = Venereal Disease Research Laboratory

Treatment
Treatments are generally directed toward stopping the inflammation and suppressing the immune system. Typically, corticosteroids such as prednisone are used. Additionally, other immune suppression medications, such as cyclophosphamide and others, are considered. In case of an infection, antimicrobial agents including cephalexin may be prescribed. Affected organs (such as the heart or lungs) may require specific medical treatment intended to improve their function during the active phase of the disease. References


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