Eriacta 100 mg drug is sildenafil (generic Viagra) substance. The manufacturer Eriacta is Ranbaxy but there is no official website for the product itself. Depending on other medical conditions they suffer from, and the severity of the erectile dysfunction symptoms experienced, doctors may prescribe either Eriacta 100 mg or Eriacta 50 mg to deal with the issues. Because of the fast-acting prowess of Eriacta, it is most prescribed by physicians. The normal daily portion is Erictra tablet 100 mg, you should not administrate more than this dose, as it can lead to unpleasant side effects. Eriacta tablets now available for purchase in Canada. Each Eriacta tablet has an active component- Sildenafil (100 mg) . Here are the side effects that may affect men taking Eriacta pill: Flushing, Diarrhea, Stroke, Vision problems, Nasal congestion, Irregular heart patterns.