ACTIVE HALF-LIFE
5-12 hours
CLASSIFICATION
PDE5 inhibitor
DOSAGE
Men: 25-200 mg/day
ACNE
No
WATER RETENTION
No
HBR
Possible
HEPATOTOXICITY
No
AROMATIZATION
No
MANUFACTURER
Pfizer
WAREHOUSE
International Warehouse 2
SUBSTANCE
Sildenafil
What is VIAGRA and How Does It Work?
VIAGRA is a renowned phosphodiesterase type 5 (PDE5) inhibitor, specifically formulated to enhance sexual performance in men experiencing erectile dysfunction. By relaxing blood vessels in the penis, it promotes increased blood flow during sexual arousal. It's important to note that VIAGRA only facilitates an erection when sexual stimulation is present. This medication is not intended for individuals without erectile dysfunction or for women.
Key Considerations Before Use
Before taking VIAGRA, ensure you:
Inform your doctor if you:
If you notice a sudden decrease or loss of vision, stop taking VIAGRA and contact your doctor immediately. Avoid combining VIAGRA with any other oral or topical erectile dysfunction treatments.
Important Information for Children and Adolescents
VIAGRA is not suitable for anyone under 18 years old.
Considerations for Patients with Kidney or Liver Issues
Notify your doctor if you have kidney or liver problems, as a lower dosage may be necessary.
Drug Interactions
Inform your healthcare provider about any other medications you?re currently taking or have recently used, including over-the-counter drugs. VIAGRA can interact with certain medications, particularly those for chest pain. In emergencies, let medical personnel know you've taken VIAGRA and the timing of your dose. Avoid using it with other medications unless prescribed by your doctor.
Do not take VIAGRA with nitrates due to the risk of severe hypotension. Always communicate with your healthcare provider about any chest pain medications you are using.
Combining VIAGRA with nitric oxide donors like amyl nitrite can lead to dangerous drops in blood pressure. If you are on protease inhibitors for HIV, your doctor may start you at the lowest dose (25 mg) of VIAGRA.
Patients on alpha-blockers for hypertension or prostate enlargement may experience dizziness from sudden blood pressure changes. Ensure a standard daily dose of the alpha-blocker is established before taking VIAGRA; your doctor may prescribe a lower starting dose (25 mg).
How to Take VIAGRA with Food and Drink
VIAGRA can be taken with or without food, but expect a longer onset if consumed with a heavy meal. Limit alcohol before taking VIAGRA, as excessive drinking can hinder your ability to achieve an erection.
Pregnancy and Breastfeeding
VIAGRA is not intended for use by women.
Driving and Operating Machinery
Be cautious when driving or operating machinery after taking VIAGRA, as it may cause dizziness or vision changes.
Important Ingredient Information
Consult your doctor if you have a sugar intolerance, such as lactose intolerance, before using VIAGRA.
How to Use VIAGRA
Follow your healthcare provider's instructions when using VIAGRA. The typical initial dose is 50 mg, and you should not exceed one dose per day. Take VIAGRA approximately one hour before sexual activity, swallowing the tablet whole with water. The onset of action varies but typically occurs within 30 minutes to one hour; expect longer onset with a heavy meal.
Should VIAGRA fail to induce an erection or if the erection doesn't last long enough, consult your healthcare provider. Do not exceed a dosage of 100 mg, as higher doses do not improve effectiveness. If you experience any side effects or have questions about your treatment, reach out to your doctor or pharmacist.
Potential Side Effects
Just like any medication, VIAGRA may cause side effects, which are generally mild to moderate and short-lived.
If you experience chest pain during or after sexual activity:
- Get into a semi-sitting position and try to relax.
- Do not use nitrates for chest pain relief.
- Contact your doctor immediately.
Allergic reactions are possible; seek medical help if you notice symptoms like sudden wheezing, difficulty breathing, dizziness, or facial swelling.
Prolonged and painful erections have been reported. If an erection lasts more than 4 hours, seek medical attention immediately.
If you notice sudden vision changes, stop using VIAGRA and contact your doctor right away.
Common side effects (affecting more than 1 in 10 patients) include headaches, while other common side effects (affecting 1 to 10 patients per 100) may involve facial flushing, indigestion, visual disturbances, nasal congestion, and dizziness.
Uncommon side effects (1 to 10 patients per 1,000) could include vomiting, skin rash, and eye-related issues. Rare side effects (1 to 10 patients per 10,000) may involve blood pressure fluctuations, fainting, and sudden hearing loss.
Reports from post-marketing experiences have indicated additional severe side effects. Always inform your doctor of any severe or unexpected side effects.
Storage Instructions
- Keep out of reach of children.
- Store below 30шC.
- Maintain in original packaging to protect from moisture.
Do not use VIAGRA past its expiration date. Dispose of unused medicines properly by consulting your pharmacy for environmentally friendly disposal methods.