Tyzeka’s share of new Rx’s reached an all-time high of 7.1% in the week ending Jan04. However, this datum could be an aberration in that it was a holiday week. Please see separate post for rolling four-week scripts. (Data c/o rkrw.)
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. (A prescription is counted as new whenever it is newly written, even if the patient is already taking the drug.)