Eriacta 100mg tablets contain Sildenafil Citrate and are primarily used to treat erectile dysfunction in men. It works by increasing blood flow to the penis, aiding in achieving and maintaining erections during sexual stimulation. The benefits include improved sexual performance and enhanced intimacy. However, common side effects may include headaches, flushing, indigestion, and nasal congestion. It's crucial to use this medication under medical guidance to minimize risks.