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Opioids Snorting morphine sulfate

Insufflating morphine is a waste because you absorb half of what you would if you just swallowed the damn things. However, if you check out the BioAvailability Half-Life Mega Thread, you'll see that Chitosan a linear polysaccharide can supposedly boost the intranasal absorption of morphine up to 60%. However, I read that there's a possibility that Chitosan can cause allergic reactions in those who are allergic to shellfish, so just a precaution.

From all I have heard though, the best way to administer Morphine aside from intravenously injecting it, is to take it rectally.
 
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