Formulations containing expectorants or decongestants

A clear bioavailable liquid composition comprising:

• (a) active ingredients selected from the group consisting of:
• (i) from 22 wt % to 25 wt % of guaifenesin and from 0.5 wt % to 0.7 wt % of phenylephrine HCl;
• (ii) from 22 wt % to 25 wt % of guaifenesin and from 1 wt % to 2 wt % of dextromethorphan HBr;
• (iii) from 21 wt % to 24 wt % of guaifenesin, from 0.4 wt % to 1 wt % of phenylephrine HCl, and from 1 wt % to 2 wt % of dextromethorphan HBr;
• or
• (iv) from 21 wt % to 25 wt % of guaifenesin and from 2 wt % to 5 wt % of pseudoephedrine HCl;
• (b) a matrix comprising:
• 20-70 wt % of a pharmaceutically acceptable poly(alkylene glycol), and
• 0.5-8 wt % of a pharmaceutically acceptable alkylene glycol;
• and
• (c) a polymeric solubilizing agent consisting of 1-30 wt % of polyvinylpyrrolidone;
• and
• (d) 1-10 wt % of water;
• wherein the wt % values are based on the total weight of the composition, and
• wherein the liquid composition remains clear without recrystallization for up to 2 years at room temperature.