Manufacturer:
Pfizer
Pharmaceutical name:
Sildenafil Citrate
The active ingredient in Viagra is Sildenafil Citrate, which is categorized as a phosphodiesterase type 5 inhibitor. This medication is primarily prescribed for erectile dysfunction (male impotence). Sildenafil Citrate influences the body's reaction to sexual arousal by enhancing the relaxation of smooth muscles through a chemical known as nitric oxide. This process increases blood flow to the penis, facilitating the ability to obtain and sustain an erection. Additionally, Sildenafil Citrate is also utilized in the treatment of pulmonary arterial hypertension.
The suggested dosage is 50 mg, recommended to be taken 30 to 60 minutes prior to engaging in sexual activity. Depending on the side effects experienced, the dosage may be adjusted up to 100 mg or down to 25 mg. The highest advised dose is 100 mg, and Viagra should not be taken more than once a day. It is advisable to avoid high-fat meals, grapefruits, or grapefruit juice while using this medication.
Before initiating treatment with Sildenafil Citrate, inform your doctor or healthcare advisor about any allergies you may have. Individuals in middle age may experience increased sensitivity to the medication's side effects. This drug can induce dizziness or visual disturbances, so alcohol consumption should be limited. Prior to using Sildenafil, ensure you discuss your medical history with your doctor or pharmacist, particularly if you have conditions such as sickle cell disease, blood pressure issues (high or low), severe dehydration, a history of painful or prolonged erections (priapism), eye disorders, heart issues, kidney or liver diseases, pulmonary edema, or abnormalities in the penis's shape (such as angulation, scarring, Peyronie's disease). It's important to note that Sildenafil does not provide protection against sexually transmitted infections like HIV.
Viagra should not be combined with other treatments for erection enhancement or nitrates, as this can lead to a significant drop in blood pressure, resulting in dizziness, fainting, heart attacks, or strokes. This medication is not suitable for women, children, or individuals allergic to any components of the drug.
Common side effects include stomach upset, headaches, flushing, heartburn, nasal congestion, dizziness, diarrhea, irregular heartbeats, shortness of breath, and prolonged (over 4 hours) or painful erections. Users might also experience changes in vision, such as increased sensitivity to light and blurred vision. Serious allergic reactions are uncommon. This list does not encompass all possible side effects, so if you experience any not mentioned here, it is recommended to contact your doctor or pharmacist.
This medication should not be taken with nitrates and recreational drugs containing amyl or butyl nitrite; alpha-blockers; other impotence medications; or high blood pressure drugs. Grapefruit juice might increase the level of sildenafil in the bloodstream, while a high-fat diet could diminish its effectiveness. Consult your physician or pharmacist for further guidance.
Viagra is intended for use as needed, reducing the chance of missing a dose. If you suspect an overdose, seek emergency medical assistance immediately. Symptoms of an overdose include chest pain, nausea, irregular heartbeat, and feelings of light-headedness or fainting.
Store the medication at room temperature, specifically between 68-77 degrees F (20-25 degrees C), away from light and moisture. Avoid keeping medications in the bathroom. Ensure that all drugs are kept out of the reach of children and pets.