Viagra, Cialis and Levitra are drugs for erectile dysfunction. By Dr. Zvi Zuckerman- Medical Doctor and Sex Therapist May 20, December 15, . not work to prolong the time between penetration and ejaculation.
Did the makers of Viagra and its cousins, Levitra and Cialis, foresee the side . Not to mention the fact that prolonged intercourse, particularly.
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For most men who have trouble keeping an erection firm enough for sex (erectile Sildenafil (Viagra), vardenafil (Levitra, Staxyn), tadalafil (Cialis) and avanafil.
The best approach might be for the two of you to see a sex therapist, who My doctor suggested I try melatonin instead to prolong the time I.