Tyzeka vs Baraclude US Scripts by Calendar Date* <pre> Tyzeka Baraclude Date NRx TRx NRx TRx Date 08/24/07 101 280 119 274 08/26/05 08/17/07 101 254 122 254 08/19/05 08/10/07 125 270 149 317 08/12/05 08/03/07 123 265 132 269 08/05/05 07/27/07 120 268 131 229 07/29/05 07/20/07 102 225 144 252 07/22/05 07/13/07 115 286 125 250 07/15/05 </pre>* This is a point in time analysis, starting in mid-July given comparable scripts @ that time… and going forward. ************************************************* Tyzeka vs Baraclude US Scripts 4 week rolling averages* <pre> Tyzeka Baraclude Date NRx TRx NRx TRx Date 08/24/07 113 267 131 279 08/26/05 08/17/07 118 264 133 267 08/19/05 08/10/07 118 257 139 267 08/12/05 08/03/07 115 261 133 250 08/05/05 </pre>* Above table showing 4 week rolling averages