The UNC School of Pharmacy Compounding Lab
Pharmaceutical Solutions II:
Nonaqueous Solutions
What appears to be the range of alcohol concentration needed to solubilize drugs in nonaqeous solutions based on your experiments with Terpin Hydrate Elixir and Belladonna Tincture?

30-50%
average needed to keep the drug or volatile oil in solution
29-33%
minimal needed to keep the drug or volatile oil in solution