Viagra Sildenafil helps to relax the muscles and increase blood flow to specific areas of the body. The medication is used for the treatment of erectile dysfunction (ED) in men. There is also another brand of Sildenafil known as Revatio which is used for the treatment of pulmonary arterial hypertension and helps to improve exercise capacity in both men and women. You should not take Viagra Sildenafil and Revatio Sildenafil together unless it is recommended by your doctor. You can buy Viagra online without a doctor's prescription. However, if you are buying the drug online, it is important that you visit a reputable e-pharmacy to make your purchase. Other than what is mentioned here, Viagra Sildenafil can be recommended for other health conditions.

Side effects of Viagra Sildenafil

There are some possible side effects that can be experienced when you take Viagra Sildenafil. You can experience some signs of allergic reactions, such as difficulty breathing, hives, swelling of the face, throat, lips, face, or tongue. If you become nauseated or dizzy, or develop numbness, pain, tingling in the chest, neck, jaw, or arms while engaging in sexual activity, stop immediately and call your physician right away. This could be a severe adverse effect of Viagra Sildenafil. You should also stop using the medication and call your doctor if you experience any severe adverse effects, such as:

• Irregular heartbeat;
• Sudden vision loss;
• Swelling of ankles, feet, or hands;
• Sudden hearing loss, or ringing in your ears;
• Heavy feeling or chest pain, nausea, sweating, pain spreading to shoulder or arm, or general ill feeling;
• Shortness of breath;
• Fainting, or feeling light headed;
• Painful erection that lasts four hours or longer.

Other less severe adverse effects you may experience when you buy Viagra Sildenafil online or from your local pharmacy store include:

• Stuffy nose;
• Redness or warmth in the face, chest, or neck;
• Memory problems;
• Back pain;
• Headache;
• Upset stomach.

It is important to mention that the list of side effects mentioned here is not exhaustive. In case you experience any other adverse reactions other than what is listed here, you should contact your health care provider.

Precautions: Important things to know

You should not buy Viagra Sildenafil online if you are also taking nitrate drug for heart problems or chest pain. Nitrate Medications include Isosorbide dinitrate (Isordil, Dilatrate-SR, Sorbitrate), Nitroglycerin (Nitrolingula, Nitrostat, Nitro-Bid, Nitro-Dur and others), Isosorbide mononitrate (Monoket, Imdur, ISMO). Nitrates can also be found in many recreational drugs such a nitrite and amyl nitrate. Using Viagra Sildenafil together with nitrate medicines can result in sudden and severe decrease in blood pressure. If you become nauseated or dizzy, or have numbness, pain, or tingling in the arms, jaw, chest, or arm, during sexual activity, you should stop immediately and contact your physician right away. This could be a severe side effect of this drug. You should not take the medication more than once per day. Allow a period of 24 hours between each of your dosage. As mentioned earlier, do not buy Viagra Sildenafil online with Revatio Sildenafil without the prescription of your doctor. You should also call your doctor for emergency help if you have painful erection or an erection that lasts for more than four hours. A prolong erection, known as priapism can cause damage to the penis. It is crucial to note that when you buy Viagra Sildenafil online, you have to follow the prescription given by the e-pharmacist.

Sildenafil can reduce blood flow to the optic nerve of the eye, leading to sudden loss of vision. There have been reported occurrences of this side effect in a small fraction of people using the medication. People who have had diabetes, heart disease, high cholesterol, high blood pressure, or some pre-existing eye problems can also experience this side effect. People who are over 50 years old or those who smoke can also experience vision loss when using the medication. It has not been ascertained whether Viagra Sildenafil is the real cause of loss of vision. You should stop taking the drug and call for urgent medical attention if you experience sudden loss of vision.

What should you discuss with your pharmacist before using Viagra Sildenafil

You should not take Viagra Sildenafil if you are currently using nitrate drug for heart problems or chest pain. To ensure that the medication is safe for you, inform your doctor if you have a history of medical condition, such as:

• Recent heart attack, congestive heart failure, or stroke within the last 6 months;
• Heart rhythm problems, heart disease, or coronary artery disease;
• Low or high blood pressure;
• Blood cell disorder, such as multiple myeloma, sickle cell anemia, or leukemia;
• Stomach ulcer;
• Kidney or liver disease;
• Bleeding disorder like haemophilia;
• Physical deformity of penis such as Peyronie's disease;
• Retinitis pigmentosa.

You should also not use Viagra Sildenafil if you have been told not to have sexual intercourse for health condition. The drug is not expected to harm an unborn baby but you should not use the medication without the recommendation of your doctor if you are pregnant or are planning to get pregnant. Do not use the drug if you are below the age of 18 without your doctor's prescription.

Instructions on taking Viagra Sildenafil

It is important that you use the medication according to the prescription of your doctor. Do not use a smaller or larger amount of the drug and do not use it for a longer period than is recommended. You should only use the medicine when you need it and it should be used within 30 minutes to one hour before you engage in sexual intercourse. You should not take Viagra more than one dose per day. The medication can help you achieve an erection when there is a sexual stimulation. However, the erection will not occur by just taking the pill. You should strictly follow your doctor's instruction.