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Your own personal recommended dose of Viagra will take lots of things into account, including your past medical history and current health and medications. Viagra is not intended for daily use in men with erectile dysfunction. It should be taken only when needed, typically about one hour before sexual activity. Daily or exceeding the recommended dosage can increase the risk of side effects and complications.

Tell your doctor or pharmacist if the advice on how to cope does not help or the side effects get worse. Headaches should usually go away after the first week of taking sildenafil. Talk to your doctor if they last longer than a week or are severe. Common side effects of sildenafil happen in more than 1 in 100 people.

However, Viagra may not be safe to use if you have certain medical conditions, including heart disease. And it’s not safe to use Viagra if you’re taking certain other medications, such as nitrates. (Nitrates are sometimes used to treat chest pain that’s related to heart problems.) This is why you should only take Viagra if it’s been prescribed by a doctor who knows your medical history. Drug interactions may change how your medications work or increase your risk for serious side effects.

The dosage is based on your age, medical condition, and response to treatment. Do not increase your dose or take this medication more often than directed. Tell your doctor if your condition does not improve or if it worsens. Cialis and Viagra are both pills for treating erectile dysfunction. They are PDE5 inhibitors that allow for increased blood flow to the penis, leading to more frequent and harder erections. Because they are the same class of medications, they have similar side effects and effectiveness.

Do not take more or less of it or take it more often than prescribed by your doctor. The products discussed in this site may have different product labeling in different countries. The information provided is for educational purposes only and is not intended to replace discussions with a healthcare provider. VIAGRA does not protect against sexually transmitted diseases, including HIV.

Renal dialysis is not expected to accelerate clearance as sildenafil is highly bound to plasma proteins and not eliminated in the urine. There are no adequate and well-controlled studies in pregnant or breast-feeding women. Sildenafil (100 mg) did not affect the steady state pharmacokinetics of the HIV protease inhibitors, saquinavir and ritonavir, both of which are CYP3A4 substrates. Sildenafil (50 mg) did not potentiate the increase in bleeding time caused by acetyl salicylic acid (150 mg). There are no data on the interaction of sildenafil and non-specific phosphodiesterase inhibitors such as theophylline or dipyridamole. Co-administration of sildenafil with ritonavir is not advised (see section 4.5).

Follow your prescribed dosage carefully and avoid taking more than the recommended amount. Viagra 100mg tablet should not be used with nitrates or nitric oxide donors, as this can lead to a dangerous drop in blood pressure. If you experience sudden vision or hearing changes, prolonged and painful erections, or severe allergic reactions, seek immediate medical attention. Keep monitoring on infusion-related complications like redness and pain. For women, this medication is not approved for use during pregnancy, and breastfeeding mothers should consult their healthcare provider for personalized advice. It is a prescription medication, and it should only be used under the guidance of a qualified healthcare provider.

Avanafil is the active ingredient in Spedra tablets which tackles ED. It is a PDE-5 inhibitor — a drug that increases the blood flow to your penis once you have become aroused. This blood flow will only occur during sexual stimulation