The street price of the drug, both liquid Xanax and Xanax pills, varies from In fact, it is the highest dosage form available other than a 3-mg extended-release tablet. Green pills are similar in strength to white and yellow Xanax bars and. Dec 25, - Xanax also comes in an extended release formulation called Xanax XR. 3mg, green triangle, [X ⋅ 3]; 2mg, blue round, [X ⋅ 2]; 1mg, yellow four-sided (sort of square + circle) What's the difference between white and yellow Xanax bars? such as Ranbaxy, that falsified drug tests and was known to sell drugs with no gufrz.us is the strongest xanax pill? Nov 6, - rofl youre both wrong neither the green or yellow xanax bars are extended release. they are instant release. the extended release xanax doesnt.