Silvitra is a pharmaceutical formulation that combines sildenafil citrate and vardenafil in a single tablet. It is classified as a phosphodiesterase type 5 inhibitor used to enhance erectile function in men. The therapeutic purpose of Silvitra is to facilitate increased blood flow to the penile tissues during sexual stimulation resulting in a sustained erection. After oral administration the active ingredients are absorbed rapidly and reach peak plasma concentrations within approximately one hour. Both sildenafil and vardenafil inhibit the enzyme phosphodiesterase type 5 which normally degrades cyclic guanosine monophosphate in smooth muscle cells. This inhibition leads to accumulation of cyclic guanosine monophosphate causing relaxation of vascular smooth muscle and subsequent vasodilation. The resulting vasodilation improves arterial inflow and reduces venous outflow thereby supporting the physiological erection process. Pharmacodynamically the combined effect provides a synergistic enhancement of erectile responsiveness with a duration of action that can extend beyond five hours.

Silvitra is a combination medication that contains vardenafil and sildenafil. It is used to treat erectile dysfunction by improving blood flow to the penis. The drug works by inhibiting phosphodiesterase type 5 enzymes in penile tissue. This inhibition increases cyclic guanosine monophosphate levels which relaxes smooth muscle and dilates blood vessels. The resulting vasodilation enhances the ability to achieve and maintain an erection during sexual stimulation. Clinical properties include a rapid onset of action and a duration of effect that supports spontaneous sexual activity.

Silvitra may cause headaches in some users. It can lead to facial flushing or warmth in the skin. Some people experience nasal congestion or a runny nose. Dizziness or lightheadedness may occur after taking the medication. Visual changes such as blurred vision or sensitivity to light have been reported. Muscle aches can also appear as a side effect.

Silvitra may cause mild to moderate headache in some users. It can also lead to facial flushing and a feeling of warmth. Some people experience nasal congestion or a runny nose. Digestive disturbances such as indigestion or mild stomach discomfort are possible. Dizziness or light-headedness may occur especially when standing up quickly. Muscle aches or back pain have been reported in a minority of cases. Rarely changes in color vision or increased sensitivity to light have been observed. These effects are usually temporary and tend to diminish with continued use.