| Anticonvulsant: gabapentin (Neurontin) | 300 mg per day, increased by 300 mg incrementally | Statistically significant reduction in pain | Double-blind, placebo-controlled RCT (n = 44)38 |
| Benzodiazepines |
| Clonazepam (Klonopin) | 0.25 mg every night, increased by 0.25 mg each week to a maximum of 1 mg per day | Conflicting data showing benefit for reduction in pain | Double-blind, placebo-controlled RCT (n = 20)39 |
| Diazepam (Valium) | 2.5 mg four times per day for one week, then 5 mg four times per day for three weeks | Statistically significant reduction in pain | Double-blind RCT (n = 39)40 |
| Triazolam (Halcion) | 0.125 mg every night | Improved sleep function, but no statistically significant reduction in symptoms | Double-blind RCT, two-period crossover study (n = 20)41 |
| Corticosteroids | | | |
| Intra-articular injection (e.g., triamcinolone, methylprednisolone) | Injection of 0.5 mL local anesthetic and 5 to 20 mg steroid using 23- to 27-gauge 0.5- to 1-inch needle | Limited evidence of improved joint function and reduction in pain; should be reserved for severe cases because of reports of articular cartilage destruction | Systematic review of seven double-blind RCTs and two single-blind RCTs42,43 |
| Systemic | Short course (five to seven days), with or without tapering | Limited evidence; should be reserved for patients with severe joint inflammation associated with autoimmune syndromes | None44 |
| Hyaluronate (avian) | Single-dose vial, with second injection in two weeks | Inconclusive evidence | Systematic review of seven RCTs45 |
| Muscle relaxant: cyclobenzaprine (Flexeril) | 10 mg every night | More effective than clonazepam and placebo for reduction in pain | Double-blind, placebo-controlled RCT (n = 39)46 |
| Nonsteroidal anti-inflammatory drugs | | |
| Celecoxib (Celebrex) | 100 mg two times per day | No statistically significant reduction in pain | Double-blind, placebo-controlled RCT (n = 68)47 |
| Diclofenac | 50 mg three times per day | No statistically significant reduction in pain | Double-blind, placebo-controlled RCT (n = 32)48 |
| Ibuprofen | 600 mg four times per day | No statistically significant reduction in pain; combination of ibuprofen and diazepam was more effective than placebo | Double-blind, placebo-controlled RCT (n = 39)40 |
| Naproxen (Naprosyn) | 500 mg two times per day | Statistically significant reduction in pain | Double-blind RCT (n = 68)47 |
| Piroxicam (Feldene) | 20 mg per day | No statistically significant reduction in pain | Double-blind, placebo-controlled RCT (n = 41)49 |
| Tricyclic antidepressant: amitriptyline | 25 mg per day | Statistically significant reduction in pain | Double-blind RCT (n = 12)46,50 |