Idenix Pharmaceuticals (IDIX)

[DewDiligence]

Tyzeka vs Baraclude US Scripts (Rolling and Raw)

[NRx=number of new prescriptions; TRx=number
of total prescriptions (new+renewal). For recently
launched drugs, the trend in NRx is an indictor of
what can be expected for TRx with a modest time lag.
Note that a prescription is counted as new whenever
it is newly written, even if is for a drug the patient is
already taking.

Caution: these numbers should not be taken too
literally inasmuch as the “comparable dates” may not
really be comparable. Still, I think it’s a worthwhile
presentation to get a general feel for the sales ramps.]


Tyzeka vs Baraclude Rolling US Scripts
by Comparable Calendar Date (2007 vs 2005)
Four-Week Rolling Average

          Tyzeka   Baraclude    
           NRx TRx  NRx TRx 
 08/31/07  107 281  142 306  09/02/05 
 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 

Tyzeka vs Baraclude Raw US Scripts
by Comparable Calendar Date (2007 vs 2005)

          Tyzeka   Baraclude 
           NRx TRx  NRx TRx 
 08/31/07   99 318  177 379  09/02/05 
 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