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Biotech / Medical : Zonagen (zona) - good buy?
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To: Dauntless who wrote (3329)4/6/1998 3:45:00 PM
From: Tokyo VD  Read Replies (1) of 7041
 
Dauntless,

Sorry to get dragged into your battle with Hank, but the efficacy of the approved dosage levels for Viagara (sildenafil citrate) was reported as such:

60.9% at 25 mg dose
72.9% at 50 mg
77.8% at 100 mg

Zonagen reported efficacy for Vasomax (phentolamine mesylate):

40% at 40 mg dose (parallel trial)
34% at 40 mg (crossover trial)

It is also correct that the FDA Division of Urologic and Reproductive drugs has been providing the guidance with the expectation that Zonagen would be reviewed by this Division. Pfizer was reviewed and approved by the Cardio-Renal Division. It is a misnomer to believe that one Division of the FDA is less stringent than another.

Tokyo
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