Sildenafil, commonly referred to by its brand name Viagra, is primarily prescribed for the treatment of erectile dysfunction (ED) in men. This condition is characterized by the difficulty in achieving or maintaining an erection that is satisfactory for sexual activity. Sildenafil functions by enhancing blood flow to the penis during sexual arousal, thereby aiding the natural erection process.
Beyond its use for ED, sildenafil is also marketed under the names Revatio and Liqrev and is prescribed for the treatment of pulmonary arterial hypertension (PAH) in both adults and children aged over one year. By relaxing blood vessels within the lungs, it improves exercise capacity and alleviates symptoms associated with PAH.
It is crucial to understand that sildenafil does not cure erectile dysfunction and does not have an effect on sexual desire. Additionally, it does not guard against sexually transmitted diseases (STDs), including HIV.
Sildenafil is offered in tablet form and as an oral suspension. When used for erectile dysfunction, it is typically taken as needed, preferably about one hour before engaging in sexual activity. However, it can be consumed anywhere between 30 minutes to 4 hours before sexual interaction. Typically, exceeding one dose within a 24-hour timeframe is not advisable. If certain medical conditions apply or if specific medications are being taken, your healthcare provider may suggest an alternative dosing regimen.
In the context of managing pulmonary arterial hypertension, sildenafil is usually administered three times a day, with or without food. Maintaining a consistent schedule is essential; thus, it is recommended to take it at the same times each day. Always adhere to the guidance from your healthcare provider, and do not hesitate to ask your doctor or pharmacist if you have questions regarding your prescribed dosage.
Although sildenafil is mainly prescribed for ED and PAH, it may also be utilized off-label for various other medical conditions. Always consult your healthcare provider for detailed information regarding non-approved uses.
Before Taking Sildenafil
- Inform your physician and pharmacist if you have any known allergies to sildenafil or any other medications.
- Be cognizant that sildenafil can interact with a variety of drugs, particularly nitrates used for treating chest pain, such as nitroglycerin. Ensure you disclose all current medications to your healthcare provider.
- Discuss any recreational drugs that contain nitrates, as their use may contraindicate sildenafil.
- Provide a comprehensive list of all prescription drugs, over-the-counter medications, vitamins, and supplements to your healthcare provider.
- Exercise caution if you have a history of cardiovascular issues, high or low blood pressure, or if advised to refrain from sexual activity for health reasons.
- Promptly notify your doctor if you experience any severe side effects or an erection lasting longer than four hours, known as priapism.
Possible Side Effects
Sildenafil is associated with side effects; some commonly reported ones include:
- Headache
- Facial flushing
- Nasal congestion
- Dizziness
- Stomach upset
- Changes in visual perception, such as color disturbances
Serious side effects that necessitate immediate medical attention may encompass:
- Sudden loss of vision
- Chest pain or irregular heartbeat
- Shortness of breath
- Prolonged and painful erection (priapism)
- Severe skin reactions or allergic responses
Should you encounter any severe or unusual symptoms, seek immediate medical assistance. Stopping sildenafil or pursuing emergency care may be necessary.
Store sildenafil in its original packaging, tightly sealed, and keep it out of reach of children. Tablets should be maintained at room temperature, away from excess moisture and heat sources. The oral suspension may be stored at room temperature or refrigerated but should never be frozen. Any unused suspension should be discarded 60 days after opening.
In the event of an overdose, promptly contact your local poison control center or emergency medical services. Symptoms of an overdose may include severe dizziness, fainting, or an unusually prolonged erection.
It is essential to attend all follow-up appointments with your healthcare provider to monitor your progress and assess medication effectiveness. Keep a detailed record of all medications and supplements consumed, and share this information during medical consultations.
- Liqrev®
- Revatio®
- Viagra®