After an exhaustive search, listed below is an update of Viagra specification as of the week ending Friday, July 17, 1998. This data is based on published IMS press releases and various broker reports.
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Specification highlights are are follows:
-Since its launch 16 weeks ago, total Viagra prescriptions have totaled over 3.2 million .This is the highest specification ever achieved for a new product in the history of Big Pharma.
-For the week ending July 17th, Viagra scripts increased for both New Rxs (+4.1%) and Refill Rxs (+8.3%). Total Viagra Rxs of 195,000 increased 5.8% over prior week.
-Indicative of its therapeutic success and future repeat business, Viagra Refill Rxs showed growth (+8.3%) reversing the first refill decline that was recorded in the previous week.
-The important Viagra Refill/New Rx ratio has moved up to its highest level ever..a very healthy 71.1%.
Note: The Memorial Day holiday had a negative impact on the 5/29/98 data.
The Independence Day holiday had a negative impact on the 7/03/98 data.
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Viagra New RXs
....................................% Growth....% Share.......
......Week....Viagra........Prior.......... Viagra.........
..... Ending...New Rxs....Week.....New Rxs......
16..7/17/98....114,000.....+4.1%..........98.2%...
15..7/10/98....109,500.....-14.8%.........98.1%..
14..7/03/98....128,516.....-9.4%...........98.3%...Holiday
13..6/26/98....141,877.....-6.5%...........98.5%..
12..6/19/98....151,579.....-10.0%..........98.6%..
11..6/12/98....168,610.....-12.4%..........98.7%...
10..6/05/98....192,585.... +19.3%.........99.0%....
9....5/29/98....161,405.....-31.8%..........98.7%...Holiday
8....5/22/98.....236,525.....-9.9%............99.0%....
7....5/15/98.....262,566.....-5.8%............99.1%.....
6....5/8/98.......278,715.....+3.3%.............99.1%....
5.....5/1/98......269,842.....+29.8%........ 98.9%.....
4.....4/24/98.....207,868 ...+83.7%........ 98.3%......
3.....4/17/98.....113,134....+212.0%....... 96.1%.......
2....4/10/98 ......36,263... . ++................84.4%......
1....4/3/98............ 546... ++..................6.4%........
0....3/27/98...... ...... 0... ++ .................0.0%.......
Total .............2,573,840..
Avg Weekly ......171,553.........................98..2%
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Viagra Refill RXs
.....................................% Growth.....% Share.....
......Week...Viagra.............Prior...........Viagra........
......Ending..Refill Rxs.........Week......Refill Rxs...
16..7/17/98...81,000.............+8.3%..........97.5%..
15..7/10/98...74,748.............-12.3%.........97.3%..
14..7/03/98...85,295.............+12.6%........97.0%.. Holiday
13..6/26/98...75,748.............+11.9%........96.8%..
12..6/19/98...68,689..............+4.5%.........96.5%...
11..6/12/98...64,781...............+2.3%.........96.1%.....
10..6/05/98....63,323.............+28.0%.........95.8%......
9....5/29/98....49,452.............+7.6%..........94.8%.....Holiday
8....5/22/98....45,972..............+31.0%.........93.8%........
7....5/15/98....35,100..............+42.1%.........91.9%........
6....5/8/98......24,700...............+50.3%........88.3%.......
5....5/1/98.......16,429............. +118.8%.......81.8%.........
4....4/24/98.......7,508..............+256.0%.......66.3%.........
3....4/17/98.......2,109..............+391.6%......33.0%.........
2....4/10/98 .........429...................++......... 8.4%...........
1....4/3/98...............0...................++...........0.0%..........
0....3/27/98.............0....................++..........0.0%.....
Total.................694,335. ...........................93.6%..
Average Weekly..46,289..............
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Viagra Total Rxs
..............................................% Growth..% Share....
......Week................Viagra.........Prior.........Viagra.......
..... Ending...............Total Rxs....Week....Total Rxs....
16..7/17/98..............195,000......+5.8%..............97.9%...
15..7/10/98..............184,300.....-13.8%.............97.8%..
14..7/03/98..............213,811......-1.8%..............97.8%...Holiday
13..6/26/98..............217,625......-0.8%..............97.9%..
12..6/19/98..............219,458......-6.0%..............97.9%.....
11..6/12/98..............233,391......-8.8%..............98.0%....
10..6/05/98..............255,908......+21.4%...........98.2%....
9....5/29/98..............210,857......-23.4%........... 97.8%..Holiday
8....5/22/98 ............ 282,497......-5.1%............ 98.1%....
7....5/15/98............. 297,666......-1.9%............. 98.2%..
6....5/8/98............... 303,415......+6.0%............. 98.1%..
5....5/1/98............... 286,271......+32.9%........... 97.7%..
4....4/24/98............. 215,376......+86.9%............ 96.7%..
3....4/17/98............. 115,243....+214.1%.............92.8%...
2....4/10/98 ..............36,692.....+6,620.1%..........76.3%...
1....4/3/98.......................546...........++..............4.0%.....
0....3/27/98 .............. .........0...........++............ 0.0%...
Total......................3,268,175
.....Average Weekly..217,842.............................97.2%...
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ED Ratio: Refill Rxs/New Rxs
........................Viagra........
..... Week.........% refills/....
.... Ending........New Rxs...
16..7/17/98...........71.1%.....
15..7/10/98...........68.3%.....
14..7/03/98...........66.4%.....Holiday
13..6/26/98...........53.4%....
12..6/19/98...........45.3%....
11..6/12/98...........38.4%.....
10..6/05/98...........32.9%.....
9....5/29/98............30.6%...Holiday.
8....5/22/98............19.4%....
7....5/15/98 ...........13.1%....
6....5/8/98................8.9%....
5....5/1/98................6.1%...
4....4/24/98..............3.6%....
3....4/17/98 .............1.9%.....
2....4/10/98 .............1.2%..
1....4/3/98 ............. 0.0%....
0....3/27/98............ .........
.....Avg Post Viagra......27.0%...
.
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.
According to IMS, ''a key barometer to measure the market demand and acceptance of Viagra will be the refill rate of prescriptions. It provides insight into how consumers like the results and how they are reacting to news about the product. The time it takes a consumer to decide to get a refill will have a major impact on the ultimate sales of Viagra.''
-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%. During its first year, a successful new product will have an increasingly higher weekly ratio .
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. |
