percocet has oxycodone in it which is a opiate. Morphine is also a opiate, they are two separate opiates. Oxycodone is a little stronger when taken by mouth but morphine is about 1.5 times stronger when given by I.V. ... Hope this clears things up..
P.S. As you probably know, both of these opiates can be highly abused and addictive so be careful and only use them as prescribed...
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