Tricyclic antidepressants |
Selective norepinephrine or serotonin reuptake inhibitors |
Cyclooxygenase-2 inhibitors |
Topical analgesics (e.g., Lidocaine patch; Non- steroid anti-inflammatory drug patch) |
Alpha-2 receptor agonist (Tizanadine) |
Transdermal opioid (Fentanyl patch) |
Fentanyl HCL patient-controlled transdermal system |
Transdermal buprenorphine |
Intrathecal drugs (e.g., Ziconotide) |
Triptans (5-HT receptor agonists) |
Opioid receptor agonist/SNRI/SSRI combination (e.g., Tramadol) |
Sublingual opioid |
α2-δ Ca2+ subunit blocker (Gabapentin/pregabalin) |
Anticonvulsants |
Others (e.g., Topiramate) |