adverse effects including dizziness and drowsiness[ 25 ] alongside its analgesic effects. Other types of anticonvulsants include pregabalin and carbamazepine . Opioids Opioid agonists, include morphine , oxycodone , and levorphanol . Opiods can be used to treat peripheral and central neuropathy[ 26 ], hyperalgesia [ 27 ], as well as