In men with erectile dysfunction, it takes 30 to 60 minutes for the drug (Viagra) to help the erection. You can take it up to four hours before when you want to have sex. Based on research, it is found that, before taking it, 58.7% reported that their penis hardness was insufficient for penetration.
However, after consumption within 2 hours, 96.3% found that they could be spliced with a hardness of grade 3 or 4, which is quite good.
They clarify that just taking sildenafil (Viagra) does not cause an erection: there must be sexual arousal for the drug to work well. On the other hand, the erection should disappear once the sexual intercourse is over.
The same drug, sildenafil, is also marketed under the brand name (Revatio) to treat pulmonary hypertension but lower strength pills. You can always buy High strength pills from the trusted site http://viagra.edu.pl to get better performance during intercourse.
Who can use Viagra and who cannot?
Viagra is only for men over 18 years of age who have impotence, that is, an inability to have an erection or to maintain it.
The most common side effects are headaches, nausea, hot flashes, and dizziness, but many men do not notice any adverse effects.
As a general rule, men who are out of breath or have chest pain with light exercises, such as going up two flights of stairs, should not use this medicine.
Some situation when you should not be taking Viagra:
Patients with severe heart or liver problems.
If you recently suffered a stroke.
Having low blood pressure.
If you follow a nitrate treatment.
An inherited genetic eye disease called retinitis pigmentosa.
Also, consulting a doctor before taking sildenafil, if you have other treatment or have another illness, such as stomach ulcers, hemophilia, leukaemia, or sickle cell anemia is much recommended.
Can it be dangerous? What if the dose is too strong?
Taking sildenafil (Viagra) can be dangerous if you also follow a treatment with medicines called nitrates, generally prescribed for angina pectoris since the combination of both can cause a dangerous drop in blood pressure.
Sildenafil also does not combine well with riociguat, a medicine for pulmonary hypertension, or with recreational drugs that have amyl nitrite.
According to the National Health Service in the UK, Sildenafil has not been effectively tested in combination with stimulant drugs such as ecstasy or cocaine, hallucinogens such as LSD, or other psychoactive substances, so their combination could also be potentially dangerous.
Are there alternative treatments to Viagra for impotence?
Other drugs work in a similar way to sildenafil (Viagra), which are
There is also a vasodilator drug called (alprostadil) that helps stimulate blood flow to the penis and is available as an injection and as a suppository.
On the other hand, if the lack of erection is a hormonal problem, an endocrinologist can prescribe a treatment with injectable male hormones.