... have a "quirky" stomach & it doesn't take much for me to get nauseated. How long should I give the Opana ER before calling my pain doctor? Will my body adjust in a few days & how long should I give the side effects to diminish?

When I met with the pain doc, we discussed my options. He made the remark oxycodone does not come in 10 mg tablets. I would have to go to percocet. Is there a law that wouldn't let him prescribe 2 five mg tablets taken every four hours? It seems I don't have the side effects with the oxycodone as I am having with other pain meds