The vasodilating action of sildenafil affects both the arteries and the veins, so the most frequent side effects of sildenafil are headache and facial flushing. Sildenafil causes small decreases in systolic and diastolic blood pressures, but clinically significant hypotension is rare.
Sildenafil is safe to take for a long time. There do not seem to be any lasting harmful effects from taking it for many months and years.
Heart palpitations are a rare side effect of Viagra.
Researchers analyzed the health records of more than 70,000 men with erectile dysfunction and found that those who were prescribed Viagra (sildenafil), Cialis (tadalafil), Levitra (vardenafil), or similar drugs called phosphodiesterase type 5 (PDE-5) inhibitors also had: 39 percent lower death rate due to heart disease.
Beneficial changes in hemodynamics have been observed with the use of sildenafil in patients with congestive heart failure with underlying ischemic and other dilated cardiomyopathies.
have a serious heart or liver problem. have recently had a stroke, heart attack or a heart problem – your doctor should carefully check whether your heart can take the additional strain of having sex. have low blood pressure (hypotension) have a rare inherited eye disease, such as retinitis pigmentosa.
Sildenafil also interacts with alcohol, grapefruit juice, and medications that affect liver proteins. This can result in a worsening of side effects like dizziness, headaches, and flushing.
Minor differences in packaging aside, brand name Viagra and its generic counterpart sildenafil are exactly the same medication. If you have erectile dysfunction, both medications should produce noticeable improvements in your erections and sexual performance. The key difference, as we mentioned above, is price.
Continue to take the tablets unless you are advised otherwise by your doctor. Stopping treatment suddenly can cause problems, so if it becomes necessary for you to stop taking sildenafil, your doctor may want you to reduce your dose gradually.
Nothing much would happen if someone without erectile dysfunction took Viagra, although they might think they feel better psychologically. But it would make a difference if you took it along with other drugs. Cocaine, marijuana, ecstasy, alcohol, nicotine, crystal meth - they all can cause erection problems.
Regardless of your dose or individual metabolism rate, Viagra usually wears off after 4-6 hours. Note that your erection should never last more than four hours. If it does, seek medical treatment.
This medicine can cause serious side effects in patients with heart problems. If you experience a prolonged or painful erection for 4 hours or more, contact your doctor immediately. This condition may require prompt medical treatment to prevent serious and permanent damage to your penis.
Taking Viagra doesn't cause new or worsening ED. However, Viagra can sometimes cause priapism, which is a long-lasting and sometimes painful erection. Priapism is a medical emergency that needs to be treated right away. If it's left untreated, priapism can damage the tissues in your penis and cause irreversible ED.
Viagra doesn't stop your erection going down after you ejaculate, so you'll likely lose your erection after you do. If you are having trouble orgasming too early then you may need separate treatment for premature ejaculation. You can get more than one erection while on Viagra.
The biggest difference between Viagra and Cialis is the amount of time their effects last. Viagra remains effective for 4 to 6 hours, which offers ample opportunity to have sex on multiple occasions if you wish. However Cialis typically allows you to achieve erections for up to 36 hours after taking a tablet.
Sildenafil tablets for erectile dysfunction come in different strengths ranging from 25mg to 100mg. The usual dose is 50mg, when you need it. Do not take it more than once a day. The dose can be increased to 100mg or decreased to 25mg depending on its effect.
Sildenafil has been associated with rare instances of clinically apparent liver injury.
You may be more likely to experience symptoms such as dizziness, lightheadedness, fainting, flushing, headache, and heart palpitations. You should avoid or limit the use of alcohol while being treated with sildenafil, and use caution when getting up from a sitting or lying position.
These medicines include sildenafil (Revatio, Viagra), vardenafil, avanafil (Stendra) and tadalafil (Adcirca, Cialis, others). The pill forms generally are thought to be safe for men with high blood pressure who are otherwise in good health. These medicines aren't for men with severe heart disease.
Sildenafil does not improve sexual function in men without erectile dysfunction but does reduce the postorgasmic refractory time.
Erectile dysfunction (ED) medications that can be cut in half. The most common ED medications can be safely split. This includes: Sildenafil (Viagra)