Respiratory Depression
Suicidal ideation
Seizures
Anaphylaxis
Serotonin syndrome
Stevens-Johnson syndrome
Nausea
Rash
Headache
Fatigue
Xerostomia
Constipation
Tremor
Insomnia
Tramadol
Hydrocodone
Ketorolac
Oxycodone
Morphine
Codeine
Buprenorphine
Hydromorphone