Zenegra Generic Viagra prescription drug is manufactured by Alkem in India. Zenegra Generic Viagra is indicated as Erectile Dysfunction or Impotence Treatment.Viagra is the brand... moreZenegra Generic Viagra prescription drug is manufactured by Alkem in India. Zenegra Generic Viagra is indicated as Erectile Dysfunction or Impotence Treatment.Viagra is the brand name of Pfizer pharmaceutical company and Zenegra is also the brand name that we have for generic Viagra (sildenafil citrate). The active ingredients are the same in both Zenegra Generic Viagra and Viagra therefore Zenegra generic Viagra works the same way as Viagra.Zenegra – generic Viagra and Viagra ® (Pfizer) both consist of 100 mg of sildenafil citrate. Zenegra Generic Viagra are simply generic versions of Viagra ®. Zenegra – Generic Viagra, is the chemical equivalent of Viagra ®.Just like any generic pharmaceutical, Zenegra Generic Viagra are less expensive than the brand name equivalent Viagra . The reason that you can buy Zenegra generic Viagra for less at a online drugstore is that you don't pay for branding, marketing, advertising or a costly sales force or overhead. The cost savings are past directly on to... less