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By doing so—combined with sexual stimulation—a cascade of events occurs that increases nitric oxide. Medications in this drug class work by affecting an enzyme called phosphodiesterase type 5. Consult your healthcare provider for more information about interactions and how they may affect you. Cialis contains the ingredient tadalafil, also available as a generic medication. As with any prescription medication, you should follow the directions carefully. Higher doses are only available for erectile dysfunction in the US.

The condition is when an erection can subside and lasts longer than a few hours. It’s a rare side effect that’s uncomfortable and can be painful at times. Afterwards, the user is presented with an opportunity to choose a medication. The information will be reviewed by a health care provider, and once prescribed, you will be charged for the selected product before it ships.

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.

Nasal congestion was the only AE leading to discontinuation reported by more than&nbsp