ACTIVE HALF-LIFE
5-12 hours
CLASSIFICATION
PDE5 Inhibitor
DOSAGE
Men: 25-200 mg/day
ACNE
None
WATER RETENTION
None
HBR
Possible
HEPATOTOXICITY
None
AROMATIZATION
None
MANUFACTURER
Pfizer
WAREHOUSE
International Warehouse 2
SUBSTANCE
Sildenafil
What is VIAGRA and How Does It Work?
VIAGRA, a renowned PDE5 inhibitor, is designed to help men experiencing erectile dysfunction (ED) achieve and maintain a firm erection. By relaxing the blood vessels in the penis, VIAGRA enhances blood flow during sexual arousal, ensuring an erection occurs only with stimulation. This powerful medication is not intended for individuals without erectile dysfunction or for women.
Key Considerations Before Using VIAGRA
Before starting VIAGRA, consider the following:
- If you are using nitrate medications, as this combination can lead to dangerously low blood pressure. Consult your doctor if you're unsure.
- Using nitric oxide donors (like amyl nitrite, known as "poppers") may also pose risks of significant blood pressure drops.
- Allergies to sildenafil or its components.
- Severe heart or liver conditions.
- Recent stroke or heart attack, or if you have low blood pressure.
- Rare genetic eye disorders, such as retinitis pigmentosa.
- A history of vision loss due to non-arteritic anterior ischaemic optic neuropathy (NAION).
Notify your doctor if you:
- Have sickle cell anemia, leukemia, or multiple myeloma.
- Experience penile deformities or Peyronie's disease.
- Have cardiovascular issues requiring monitoring during sexual activity.
- Currently have a stomach ulcer or bleeding disorders like hemophilia.
If you experience sudden vision changes, discontinue VIAGRA and consult your doctor immediately. Avoid combining VIAGRA with other erectile dysfunction treatments unless directed by your healthcare provider.
Important Notes for Children and Adolescents
VIAGRA is not suitable for anyone under 18 years of age.
Considerations for Patients with Kidney or Liver Issues
Inform your healthcare provider if you have kidney or liver problems, as a lower dosage may be advised.
Drug Interactions
Always inform your doctor or pharmacist of any other medications you are taking, including over-the-counter products. VIAGRA can interact with certain drugs, particularly those prescribed for chest pain. In emergencies, inform medical personnel that you've taken VIAGRA and when. Avoid using with nitrates due to the risk of severe hypotension.
If you are on protease inhibitors for HIV, your doctor may prescribe a lower starting dose of VIAGRA (25 mg). Alpha-blocker users may experience dizziness when standing up rapidly; discuss with your doctor to minimize this risk.
Using VIAGRA with Food and Drink
VIAGRA can be taken with or without food, but a heavy meal may delay its effects. Limit alcohol intake, as it can impair your ability to achieve an erection.
Pregnancy and Breastfeeding
VIAGRA is not intended for use by women.
Driving and Operating Machinery
VIAGRA may cause dizziness and visual disturbances. Assess how it affects you before driving or operating machinery.
Important Information About Ingredients
If you have a sugar intolerance, such as lactose, consult your doctor before using VIAGRA.
How to Use VIAGRA
Always follow your doctor?s instructions regarding VIAGRA usage. The typical initial dose is 50 mg, and do not exceed one dose per day. Take VIAGRA about an hour before sexual activity, swallowing the tablet whole with water. The onset time varies but generally occurs within 30 minutes to one hour, with longer onset times if taken after a heavy meal. If VIAGRA does not help you achieve an erection or if it doesn?t last long enough, consult your doctor.
Taking more than the prescribed dosage can lead to heightened side effects. Always stick to your recommended dosage and contact your doctor if you exceed it.
Possible Side Effects
Like all medications, VIAGRA may cause side effects, typically mild to moderate and fleeting. If you experience chest pain during or after intercourse:
- Sit in a semi-upright position and relax.
- Do not use nitrates to relieve chest pain.
- Contact your doctor immediately.
Allergic reactions are also possible. Seek immediate medical attention for symptoms like sudden wheezing, difficulty breathing, dizziness, or swelling of the face or throat.
Prolonged and painful erections have been reported. If an erection lasts over 4 hours, seek medical help immediately. Sudden vision changes require you to stop VIAGRA and consult your doctor.
Headaches are a common side effect, occurring in more than 1 in 10 patients. Other common side effects may include facial flushing, indigestion, visual disturbances, nasal congestion, and dizziness.
Uncommon side effects could involve vomiting, skin rash, or eye-related issues like irritation and pain. Rare side effects may include blood pressure fluctuations, fainting, or sudden hearing loss.
Be aware of any severe side effects or new symptoms and inform your doctor promptly.
Storage Instructions
- Keep out of reach of children.
- Store below 30шC.
- Keep in original packaging to protect from moisture.
Do not use VIAGRA past the expiration date indicated on the packaging. Dispose of medications properly; consult your pharmacy for environmentally friendly disposal options.