The price rating is based on the medium wholesale price for Solu-Phyllin GG (Guaifenesin Theophylline) . The medium wholesale price is the recommended selling price. Insurance companies often use this price as the basis for Solu-Phyllin GG (Guaifenesin Theophylline) reimbursement. This cost does not indicate what you would pay for Solu-Phyllin GG (Guaifenesin Theophylline) if covered by your prescription benefit plan. Dollar signs are used to reflect the following price ranges: $ = < $25, $$ = $25 to $49, $$$ = $50 to $99, $$$$ = $100 to $199, and $$$$$ = > $200.