The minimum effective dose for complete erection was 10 mcg. The erectile response reached a plateau between 60 and 140 mcg., suggesting minimal improvement in efficacy at higher doses. Patient evaluation of erectile quality corresponded well with that of investigators. PNU-83757 was efficacious and extremely well tolerated, and the only adverse events were mild. No cardiovascular side effects were observed at any dose. PNU-83757 intracavernous injections caused no post-injection pain in any patient, which may make PNU-83757 superior to alprostadil in a select group. Further study is required to evaluate the efficacy of PNU-83757 combined with other drugs and with sexual stimulation.
The minimum effective dose for complete erection was 10 mcg. The erectile response reached a plateau between 60 and 140 mcg., suggesting minimal improvement in efficacy at higher doses. Patient evaluation of erectile quality corresponded well with that of investigators. PNU-83757 was efficacious and extremely well tolerated, and the only adverse events were mild. No cardiovascular side effects were observed at any dose. PNU-83757 intracavernous injections caused no post-injection pain in any patient, which may make PNU-83757 superior to alprostadil in a select group. Further study is required to evaluate the efficacy of PNU-83757 combined with other drugs and with sexual stimulation.
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