Who can and cannot take sildenafil

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Medicines that you take by mouth are called oral medicines. They’re often the first line of treatment for trouble getting or keeping an erection, called erectile dysfunction ED.

Oral medicines for ED usually work well and cause few side effects. The four main medicines taken by mouth for erectile dysfunction are: Avanafil Stendra. Tadalafil Cialis. These medicines are called PDE5 viagrq. They enhance the effects of a chemical the body makes that relaxes muscles viagta the penis, called nitric oxide.

This boosts blood flow and helps you get an erection from sexual activity. How oral medicines differ Each oral medicine for ED has a slightly different chemical makeup. These small differences affect the way each medication works, such as how quickly it takes effect and wears off, and the possible side effects. Your doctor or other health care professional can recommend one for you based on these factors, other health conditions you have and any other medicines you take.

Sildenafil Viagra. This medicine works best when you take it on an empty stomach an hour before sex. The body takes longer to absorb it after a high-fat meal or alcohol. Its effects often last for 4 to 5 hours. Viagra online barata might work longer if you have mild to moderate erectile onoine. This medicine also works best when you take it an hour before sex on an empty stomach.

As with sildenafil, a high-fat meal or alcohol keep the body from absorbing it as quickly. Vardenafil usually works for 4 to 5 hours. Its effects might last longer if you have mild to moderate ED. A newer form of the medicine that dissolves on the tongue might work faster than the pill that you swallow. This medication is taken with or without food an hour before sex. It works for up to 36 hours.

You can take it in a small dose daily or in a larger dose as needed. Avanafil Stendra. You can take this medicine with or without food 30 minutes before sex, depending on the dose. It lasts 4 to 5 hours, or longer if you have mild to moderate ED. These medicines all viagra online barata well for ED. When choosing one, tell your doctor or other health care professional what your preferences are, such as cost, ease of use, how long the drug’s effects last and side effects.

Generic versions of sildenafil, vardenafil and tadalafil viagrw available. When oral medications might not be safe Check with your health care team before you take any medicine for erectile dysfunction. Oral ED medicines might not work or might be dangerous if you also take any of the following: Nitrate medicines. Often, these are prescribed for chest pain called angina.

Some examples of nitrates are nitroglycerin Nitro-Dur, Nitrostat, othersisosorbide mononitrate Monoket and isosorbide dinitrate Bidil. These are commonly prescribed for an enlarged prostate or male pattern baldness. They include dutasteride Avodart, Jalyn barwta finasteride Propecia, Proscar. Medicines that block an enzyme called CYP3A4. These include itraconazole Sporanox, Tolsuraketoconazole Extina, Ketozole, others and ritonavir Norvir. Oral medicine for ED also might not be safe or work well if you have: Very low blood pressure, called hypotension, or uncontrolled high blood viaga, called hypertension.

Severe liver disease. Kidney disease that needs to be treated with dialysis. Recent heart or blood vessel problems. These include a heart attack, stroke or a serious heart rhythm disorder in the past six months. An inherited eye disease that affects the retina. Side effects Side effects of oral ED medicines are often mild.

Common ones include: Flushing of the skin.

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