Replies to post #2047 on Idenix Pharmaceuticals (IDIX)

[DewDiligence]

The 10/5/07 Tyzeka scripts reached an all-time
high on all measures: NRx, TRx, NRx%, and
TRx%. This is not proof of anything but it does
suggest that the overall marketing push has not
been cut on account of NVS’ taking over 100%
of the effort. (10/5/07 numbers c/o rkrw.)

Tyzeka US Scripts

[NRx=number of new prescriptions; TRx=number
of total prescriptions (new+renewal). For recently
launched drugs, the trend in NRx is an indicator of
what can be expected for TRx with a modest time lag.
NRx% and TRx% are calculated as NRx and TRx
divided by the number of new and total prescriptions,
respectively, for all drugs in the HBV category.

Note that a prescription is counted as new whenever
it is newly written, even if is for a drug the patient is
already taking.]

Date  NRx TRx NRx% TRx% 
 Oct05 139 314 5.9% 4.0% 
 Sep28 116 299 4.9% 3.7% 
 Sep21  87 252 3.8% 3.3% 
 Sep14 100 277 4.3% 3.6% 
 Sep07  82 242 3.7% 3.1% 
 Aug31  99 318 4.1% 4.0% 
 Aug24 101 280 4.8% 3.6% 
 Aug17 101 254 4.5% 3.3% 
 Aug10 125 270 5.4% 3.5% 
 Aug03 123 265 5.3% 3.4% 
 Jul27 120 268 5.3% 3.5% 
 Jul20 102 225 4.7% 3.0% 
 Jul13 115 286 5.0% 3.7% 
 Jun29  86 214 3.8% 2.8% 
 Jun22  78 197 3.6% 2.7% 
 Jun15  91 212 4.0% 2.8% 
 Jun08  80 191 3.5% 2.5% 
 Jun01  65 167 3.4% 2.5% 
 May25  79 169 3.6% 2.3% 
 May18  80 152 3.7% 2.2% 
 May11  93 191 4.4% 2.6% 
 May04  92 188 4.1% 2.5% 
 Apr27  80 161 3.6% 2.2% 
 Apr20  76 146 3.6% 2.1% 
 Apr13  61 135 2.9% 1.9% 
 Apr06  82 137 3.9% 1.9% 
 Mar30  87 142 3.9% 2.0% 
 Mar23  55  90 2.7% 1.3% 
 Mar16  54 103 2.4% 1.4%