Positives

• High-quality evidence supports pregabalin at 300, 450, or 600 mg/day for fibromyalgia pain reduction, with 450 mg/day the most effective dose — though only 1 in 10 patients achieves more than 30% pain reduction PMC.
  
  
• A patient on Drugs.com said after starting pregabalin she was “finally able to live my life,” with pain low enough to resume social and household activities she had given up on Drugs.com.
  
  
• In ME/CFS, pregabalin is most commonly used as a sleep aid plus pain-modulator combination, with the ME Association noting some patients find it helpful enough to keep taking despite the side-effect profile ME Association.
  
  

Negatives

• Other patient reviews describe concerning side effects including feelings of unreality, dizziness, and cognitive dulling that affected intellectual capacity, leading them to stop the drug despite pain control Drugs.com.
  
  
• The most common reasons for pregabalin discontinuation are sleepiness and weight gain, both dose-dependent — meaning patients seeking the most effective 450-600 mg dose tend to be the ones most likely to stop AAFP.
  
  

Hurdles & Side Effects

• Pregabalin is a Schedule V controlled substance under the federal Controlled Substances Act, so prescribers and pharmacies treat it more cautiously than non-scheduled drugs even though generic capsules cost roughly $0.17-$0.22 each at wholesale Drugs.com.
• About 9% of Lyrica-treated patients gain at least 7% of their body weight, and even short-term users have reported withdrawal including insomnia, anxiety, palpitations, sweating, and seizures, prompting tapering recommendations of at least one week Drugs.com.