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Sildenafil Mexico

Sildenafil Mexico

Mechanism of action

Potent and selective inhibitor of phosphodiesterase type 5 (PDE5) specific cyclic guanosine monophosphate (cGMP) of the corpora cavernosa, where PDE5 is responsible for the degradation of cGMP.

How does viagra work in our body?

In our body there is an enzyme called PDE-5, which hinders firm and lasting erections; What the drug does through its active ingredient, sildenafil, is to counteract PDE-5. This results in a penis with a continuous blood flow, which leads to a prolonged erection for four to six hours with proper erotic stimulation. Viagra helps maintain an erection, but the brain through the nervous system is the one that sends the order.

Contraindications for its use

Like any other drug, Viagra has several contraindications. It is important not to ignore them and go to the doctor immediately to rule out any serious complications, in case you have already taken the pill. Before consumption, it is advisable that you consult your doctor of trust, to make sure that there is no problem with other medications or supplements that you are taking at the moment.

For example, it should not be combined with nitrates, since that can excessively lower blood pressure. It should also be avoided by people suffering from heart disease. Also, its use is not recommended when there are liver problems, kidney stones, or blood pressure.

What side effects can this medication cause?

Sildenafil may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:




flushing (feeling of warmth)


difficulty falling asleep or staying asleep

What is the dosage for sildenafil?

The usual recommended dose is 25 to 100 mg 1 hour before sexual activity.

The maximum dose is 100 mg daily.

The elderly (over 65 years of age) should start at 25 mg before sexual activity.

Sildenafil is rapidly absorbed. Maximum observed plasma concentrations are reached within 30 to 120 minutes (median 60 minutes) of oral dosing in the fasted state. When sildenafil is taken with a high fat meal, the rate of absorption is reduced, with an average delay in the time to maximal concentration of 1 hour.

Do not take viagra in the following cases

If you take other products to increase sexual performance.

If you suffer from cardiovascular diseases.

If you have been diagnosed with low blood pressure.

If you suffer from degenerative diseases of the retina.

If you suffer from priapism or deformations in the penis.