Viagra dosage instructions

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  1. Eugene111 Well-Known Member

    Viagra dosage instructions


    (see Recommended Dose and Dose Adjustment, ACTION AND CLINICAL PHARMACOLOGY, WARNINGS AND PRECAUTIONS). VIAGRA (sildenafil citrate) has been shown to potentiate the hypotensive effects of nitrates in healthy volunteers and in patients, and is therefore contraindicated in patients who are taking any type of nitrate drug therapy, or who utilize short-acting nitrate-containing medications, due to the risk of developing potentially life-threatening hypotension. The use of organic nitrates, either regularly and/or intermittently, in any form (e.g. oral, sublingual, transdermal, by inhalation) is absolutely contraindicated (see ACTION AND CLINICAL PHARMACOLOGY, CONTRAINDICATIONS). Since higher plasma levels may increase both efficacy and the incidence of adverse events, a starting dose of 25 mg should be considered in patients, age 65 years or over, on concomitant CYPA4 inhibitors, with severe renal impairment, with hepatic impairment and on ritonavir (see Dosing Considerations above, ACTION AND CLINICAL PHARMACOLOGY, WARNINGS AND PRECAUTIONS). For most patients, the recommended dose of VIAGRA is 50 mg taken as needed. The concomitant use of the potent cytochrome P-450 3A4 inhibitor, ritonavir is associated with a 1000% (11-fold) increase in plasma levels (AUC) of sildenafil. Given the extent of the interaction with patients receiving concomitant therapy with ritonavir, it is recommended not to exceed a maximum single dose of 25 mg of sildenafil in a 48-hour period (see WARNINGS AND PRECAUTIONS). To be taken as needed approximately 30 – 60 minutes before sexual activity. Sildenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, sildenafil works by increasing blood flow to the penis to help a man get and keep an erection. This drug does not protect against sexually transmitted diseases (such as HIV, hepatitis B, gonorrhea, syphilis). Consult your doctor or pharmacist for more details. Read the Patient Information Leaflet provided by your pharmacist before you start taking sildenafil and each time you get a refill. If you have any questions, ask your doctor or pharmacist. To treat erectile dysfunction-ED, take this drug by mouth as directed by your doctor, usually as needed. Take sildenafil at least 30 minutes, but no more than 4 hours, before sexual activity (1 hour before is the most effective). A high-fat meal may delay how quickly the drug begins to work.

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    Viagra comes in three different doses of 25mg, 50mg and 100mg. Find out which dosage is right for you and order online. Viagra sildenafil is used to treat erectile dysfunction or impotence in men. Includes. Follow all directions on your prescription label. Do not. Viagra dosage instructions - Online Pharmacy Shop Fast Delivery. Best Drug Online Shop Worldwide Delivery. Pharmacy Online Shop Online Support.

    For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity. However, VIAGRA may be taken anywhere from 30 minutes to 4 hours before sexual activity. The maximum recommended dosing frequency is once per day. Based on effectiveness and toleration, the dose may be increased to a maximum recommended dose of 100 mg or decreased to 25 mg. VIAGRA was shown to potentiate the hypotensive effects of nitrates and its administration in patients who use nitric oxide donors such as organic nitrates or organic nitrites in any form is therefore contraindicated [ The recommended dose for ritonavir-treated patients is 25 mg prior to sexual activity and the recommended maximum dose is 25 mg within a 48 hour period because concomitant administration increased the blood levels of sildenafil by 11-fold [ Consider a starting dose of 25 mg in patients treated with strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, or saquinavir) or erythromycin. Special patient instructions comes with sildenafil. Read the directions carefully before you start using sildenafil and each time you get a refill of your medicine. If you are using the oral liquid, shake the bottle well for at least 10 seconds before measuring each dose. Use the oral syringe provided in the package to measure each dose. This medicine usually begins to work for erectile dysfunction within 30 minutes after taking it. It continues to work for up to 4 hours, although its action is usually less after 2 hours. Use only the brand of this medicine that your doctor prescribed. The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

    Viagra dosage instructions

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  4. Most of the time, sildenafil starts to work after approximately 30 minutes. If you've taken the right dose for you, you should find it easier to get an erection when.

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    Sildenafil learn about side effects, dosage, special precautions, and more on MedlinePlus. What special dietary instructions should I follow? They pull in opposite directions with one dominating over the other in a perfect. The Sildenafil in Viagra is made in 3 doses 25 mg, 50 mg, and 100 mg and is. Many factors can influence how long Viagra takes to start working. Viagra can last up to five hours or longer depending on your dosage, your.

     
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    Do not stop taking this medication without consulting your doctor. Some conditions may become worse when you suddenly stop this drug. Some people who have suddenly stopped taking similar drugs have had chest pain, heart attack, and irregular heartbeat. If your doctor decides you should no longer use this drug, he or she may direct you to gradually decrease your dose over 1 to 2 weeks. When gradually stopping this medication, it is recommended that you temporarily limit physical activity to decrease strain on the heart. Get medical help right away if you develop chest pain/tightness/pressure, chest pain spreading to the jaw/neck/arm, unusual sweating, trouble breathing, or fast/irregular heartbeat. Show More This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Metoprolol Acilci. Net Beta-Blockers and Beta-Agonists What Is the Risk? - Pharmacy Times Beta blockers – Knowledge for medical students and physicians
     
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  8. Tyler New Member

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