Pre-emptive analgesia with Tramadol: Comparative study between intramuscular, intravenous and epidural routes

Preemptive epidural neostigmine morphine versus epidural morphine in lumbar spine surgery : Comparative study

Epidural and parenteral morphine clinical and pharmacy

Preemptive epidural analgesia using either ropivacaine or bupivacaine with fentanyl in minimally invasive disectomy

Comparative study of preemptive analgesic effect of gabapentin, morphine and ketamine in patients undergoing upper abdominal laparotomies

Current concepts in neuraxial adminstration of opioids and non-opioids

Intrathecal fentanyl or bupivacaine combined with epidural bupivacaine for labor analgesia : Comparative study

The effect of the preemptive use of two NMDA receptor antagonists: Dextromethorphan and ketamine on neuroactive pain mediators and postoperative opioid consumption

Cervical epidural in anesthesia and pain clinic

A comparative study of the effects of ropivacaine alone and in adjuvant combination with fentanyl, tramadol, ketamine and clonidine for continuous epidural labor analgesia