Efficacy of dronabinol alone and in combination
http://www.cannabis-med.org/studies/…w.php?s_id=191

Dronabinol and prochlorperazine in combination
http://www.cannabis-med.org/studies/…ow.php?s_id=28

Cannabinoids, in combination with (NSAIDS), produce a synergistic analgesic effect
http://www.medjournal.com/forum/show…87&postcount=1

Add-on treatment with the synthetic cannabinomimetic nabilone on patients with chronic pain
http://www.cannabis-med.org/studies/…w.php?s_id=197

Synergistic affective analgesic interaction between delta-9-tetrahydrocannabinol and morphine.
http://www.cannabis-med.org/studies/…w.php?s_id=178

The analgesic properties of delta-9-tetrahydrocannabinol and codeine.
http://www.cannabis-med.org/studies/…ow.php?s_id=17

Synergy between Delta(9)-tetrahydrocannabinol and morphine in the arthritic rat
http://www.unboundmedicine.com/medli…_arthritic_rat

Cannabis reduces opioid dose in the treatment of chronic non-cancer pain.
http://www.cannabis-med.org/studies/…w.php?s_id=148

Medicinal cannabis does not influence the clinical pharmacokinetics of irinotecan and docetaxel.
http://www.cannabis-med.org/studies/…rn=INTERACTION