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Rarely, sudden decreased vision, including permanent blindness, in one or both eyes (NAION) may occur. If this serious problem occurs, stop taking tadalafil and get medical help right away. The active ingredients of Ro Sparks are sildenafil (Viagra) and tadalafil (Cialis). Sildenafil allows users to have an erection quickly, while tadalafil stays in the body just in case an erection is necessary later in the day.
Most men with erectile dysfunction are in reasonable health, although it may be a sign of poor circulation and narrowing of the arteries. Generic medicines