GETTING STARTED WITH VIAGRA – what viagra does

No Hidden Costs. Lowest Price Guarantee & No Subscription Required. Personalized Options That Fit Your Needs. Viagra Works For 80% of Men4 Tablets – $ · 8 Tablets – $ · 28 Tablets – $ · 64 Tablets – $Store mixed oral liquid in the refrigerator. This condition may require prompt medical treatment to prevent serious and permanent damage to your penis. It continues to work for up to 4 hours, although its action is usually less after 2 hours. If your dose is different, do not change it unless your doctor tells you to do so. You can take this medicine with or without food 30 minutes before sex, depending on the dose. If you already use medicine for high blood pressure hypertension , sildenafil could make your blood pressure go too low.VIAGRA can cause your blood pressure to drop suddenly to an unsafe level if taken with certain other medicines. Do not take VIAGRA if you take any other medicines called «nitrates.» Nitrates are used to treat chest pain (angina). A sudden drop in blood pressure can cause you to feel dizzy, faint, or have a heart attack or stroke. Sildenafil (Viagra brand) increases blood flow to the penis following sexual stimulation. It does this by blocking the enzyme responsible for the breakdown of cGMP. cGMP is a substance that relaxes and widens blood vessels and smooth muscle cells. This allows men to keep an erection hard enough for sex. Viagra Dosage and Use Tips for First-Timers. Viagra dosage for erectile dysfunction (ED) is usually milligrams (mg), but those over 65 may start at 25 mg. Your doctor will also need to.Often, these are prescribed for chest pain called angina. These medicines all work well for ED. A newer form of the medicine that dissolves on the tongue might work faster than the pill that you swallow. Precautions It is important that you tell all of your doctors that you take sildenafil. Kidney disease that needs to be treated with dialysis.

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