Morphine Hydrocholoride vS Sulphate?

[secanol]

Which is better for IV? What is the difference?

 

[jasoncrest]

I think Morphine Hydrochloride is better for IV, and Morphine Sulphate better for oral administration.

(I say that because almost all injectable Morphine ampoules are Morphine Hydrochloride, while most Morphine pills or capsules are Morphine Sulphate)

I guess it's because the Hydrochloride salt is more soluble and maybe more stable in aqueous solution...