Here is an update of ED specification based on unconfirmed Internet posts. Highlights are are follows:
-Total Viagra prescriptions have now surpassed 2.2 million since launch (11 weeks)
-Viagra new Rxs and refill Rxs for the week ending June 12th declined 8.8% over the prior week. Concern over Viagra drug interactions were highest during this week.
-Viagra refill Rxs continued to grow (+2.3%)
- The important Viagra Refill/New Rx ratio moved up to 38.4%.
- Approximately 98 out of 100 Rxs for ED are being written for Viagra.
Note: The Memorial Day holiday had a negative impact on the 5/29/98 data.
Have PFun!
BigKNY3
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ED New RXs
Correlation: -0.883
.....................................................% Share.......% Share
......Week....Viagra........MUSE........ Viagra.........MUSE
..... Ending...New Rxs....New Rxs.....New Rxs.....New Rxs
11..6/12/98....168,610.....2,154.........98.7%.........1.3%
10..6/05/98....192,585.....2,035.........99.0%.........1.0%
9... 5/29/98...161,405.....2,097......... 98.7%.........1.3%
8... 5/22/98...236,525.....2,344......... 99.0%.........1.0%
7....5/15/98....262,566....2,373......... 99.1%........ 0.9%
6... 5/8/98......278,715....2,588......... 99.1%.........0.9%
5... 5/1/98......269,842....2,945......... 98.9%.........1.1%
4... 4/24/98.....207,868 ..3,524......... 98.3%.........1.7%
3... 4/17/98.....113,134....4,609........ 96.1%..........3.9%
2....4/10/98 ......36,263... 6,716........84.4%.........15.6%
1....4/3/98............ 546... 7,998...........6.4%........93.6%
0....3/27/98...... ...... 0... 9,593 ..........0.0%.......100.0%
Total .............1,928,059..48,976
Avg Post Viagra.175,278....3,580
Avg. 1997........................12,594
...% Chg Post/1997..............-71.6%
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ED Refill RXs
Correlation: -0.927
............................................................% Share......% Share
......Week...Viagra.............MUSE...........Viagra..........MUSE
......Ending..Refill Rxs.........Refill Rxs......Refill Rxs....Refill Rxs
11..6/125/98...64,781.............2,630.......96.1%..........3.9%
10..6/05/98....63,323..............2,755.......95.8%..........4.2%
9....5/29/98....49,452..............2,737....... 94.8%........ 5.2%
8....5/22/98....45,972...............3,026 ......93.8%......... 6.2%
7....5/15/98 ...35,100...............3,078..... 91.9%..........8.1%
6....5/8/98......24,700...............3,277......88.3%......... 11.7%
5....5/1/98.......16,429............. 3,659......81.8%......... 18.2%
4....4/24/98.......7,508..............3,824......66.3%......... 33.7%
3....4/17/98.......2,109..............4,290......33.0%......... 67.0%
2....4/10/98 .........429..............4,677..... 8.4%........... 91.6%
1....4/3/98...............0...............5,031.....0.0%...........100.0%
0....3/27/98.............0...............4,873..... 0.0%...........100.0%
Total..............309,803. ...........38,984
Avg Post Viagra..24,502............3,544.....89.74%......... 10.3%
Avg. 1997...................................3,278
% Chg Post/1997.........................8.1%
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ED Total Rxs
Correlation: -0.930
....................................................................% Share....% Share
......Week................Viagra.........MUSE.........Viagra.........MUSE
..... Ending...............Total Rxs....Total Rxs....Total Rxs....Total Rxs
11..6/12/98..............233,391......4,784..............98.0%.....2.0%
10..6/05/98..............255,908......4,799..............98.2%.....1.8%
9....5/29/98..............210,857......4,834............. 97.8%.....2.2%
8....5/22/98 ............ 282,497......5,370............. 98.1%.....1.9%
7....5/15/98............. 297,666......5,451............. 98.2%.....1.8%
6....5/8/98............... 303,415......5,865............. 98.1%.....1.9%
5....5/1/98............... 286,271......6,604............. 97.7%......2.3%
4....4/24/98............. 215,376......7,348............. 96.7%......3.3%
3....4/17/98............. 115,243......8,899..............92.8%.......7.2%
2....4/10/98 ...............36,692.....11,393............76.3%.......23.7%
1....4/3/98.......................546.....13,029..............4.0%......96.0%
0....3/27/98 .............. .........0.....14,466............ 0.0%.....100.0%
Total......................2,237,862.....92,842
..... Avg Post Viagra ..203,442......7,125..............96.6%.......3.4%
......Avg. 1997............................15,872
......% Chg Post/1997....................-55.1%
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ED Ratio: Refill Rxs/New Rxs
........................Viagra.........MUSE
..... Week.........% refills/......% refills/
.... Ending........New Rxs.....New Rxs
11..6/12/98...........38.4%.....122.1%
10..6/05/98...........32.9%.....135.4%
9....5/29/98............30.6%....130.5%
8....5/22/98............19.4%....129.1%
7....5/15/98 ...........13.1%....129.7%
6....5/8/98................8.9%....126.6%
5....5/1/98................6.1%....124.2%
4....4/24/98..............3.6%....108.5%
3....4/17/98 .............1.9%......93.1%
2....4/10/98 .............1.2%......69.6%
1....4/3/98 ............. 0.0%.....62.9%
0....3/27/98............ ............ 50.8%
..... Avg Post Viagra ..13.9%...97.6%
..... Avg. 1997.......................26.0%
Notes
-New Rxs: The key to the health of a new product. Look for volume, market share and growth trends. Viagra new Rxs are expected to plateau and decline due to heavy initial trial usage. Holidays will effect weekly totals.
-Refill Rxs: An important indicator of the efficacy and toleration of a new product particularly one for prn therapy such as ED. These patients will not refill a product that is not working or is causing adverse reactions.
-Refill/New Rx Ratio: Another indicator of a product's success. After an initial launch period of 4-6 months, a successful new product should have a refill ratio of at least 50%. Conversely, a product with a refill ratio of less than 50% after 4-6 months may not have been viewed as effective, well-tolerated, or available.
In addition, a ratio of greater than 110% may result from a sharp decline in new specification due to alternative new therapies ....while the remaining satisfied patients continue to refill their Rxs. If this ratio is significantly higher than historical norms, the product may be in trouble.
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