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, a renowned phosphodiesterase type 5 (PDE5) inhibitor, is a trusted solution for men facing erectile dysfunction (ED). It works by relaxing the blood vessels in the penis, thereby enhancing blood flow during sexual arousal. Remember, VIAGRA requires sexual stimulation to facilitate an erection and is not suitable for those without erectile dysfunction or for women.
This powerful medication is specifically formulated for men who struggle with impotence, which is defined as the inability to achieve or maintain an erection sufficient for sexual activity.
Important Considerations Before Using VIAGRA
Do not use VIAGRA if:
- You are taking nitrates, as this combination may cause a dangerous drop in blood pressure. Consult your doctor regarding any medications prescribed for angina or chest pain.
- You are using nitric oxide donors, such as amyl nitrite (poppers), due to similar risks.
- You have a known allergy to sildenafil or any component of VIAGRA.
- You have severe heart or liver problems.
- You have had a recent stroke or heart attack or experience low blood pressure.
- You suffer from specific rare genetic eye disorders, including retinitis pigmentosa.
- You have previously experienced vision loss due to non-arteritic anterior ischemic optic neuropathy (NAION).
Exercise Caution with VIAGRA:
Inform your doctor if you have:
- Sickle cell anemia, leukemia, or multiple myeloma.
- Peyronie?s Disease or physical deformities of the penis.
- Existing heart issues; a thorough heart evaluation is essential before engaging in sexual activity.
- Current stomach ulcers or bleeding disorders like hemophilia.
If you notice sudden vision changes, discontinue use immediately and consult your doctor.
VIAGRA should not be combined with other oral or topical ED treatments.
Special Considerations for Young Adults
VIAGRA is not recommended for individuals under 18 years of age.
Advice for Patients with Kidney or Liver Issues
If you have kidney or liver problems, inform your doctor; you may require a lower dosage.
Interacting Medications
Always disclose any other medications you are taking, including over-the-counter drugs, to your healthcare provider. VIAGRA may interact with certain medicines, particularly those prescribed for chest pain. In an emergency, inform healthcare providers about your recent VIAGRA usage and dosage timing. Avoid combining VIAGRA with nitrates to prevent hazardous blood pressure drops.
If you're on protease inhibitors for HIV, your doctor may suggest starting with a lower dose (25 mg) of VIAGRA. Beware of potential dizziness if you're on alpha-blockers for high blood pressure or prostate issues. A stable daily dose of the alpha-blocker is recommended before initiating VIAGRA, possibly starting with a lower dose (25 mg) of the latter.
Using VIAGRA with Food and Drink
VIAGRA can be taken with or without food, though a heavy meal may delay its effectiveness. To ensure optimal results, limit alcohol consumption prior to use.
Pregnancy and Breastfeeding
VIAGRA is not intended for use by women.
Driving and Operating Machinery
VIAGRA may cause dizziness or visual disturbances. Assess your response to the medication before driving or operating machinery.
Ingredients to Note
If you are advised to avoid certain sugars, such as lactose, consult your healthcare provider before taking VIAGRA.
Usage Instructions
Always adhere to your doctor?s instructions for taking VIAGRA. The typical starting dose is 50 mg. Do not exceed one dose in a 24-hour period, and take the tablet about one hour before anticipated sexual activity with a full glass of water. If you feel the effects are too strong or too weak, consult your doctor.
Remember, VIAGRA will only help achieve an erection if you are sexually stimulated. It typically takes 30 minutes to an hour to work but may take longer with a heavy meal.
If VIAGRA fails to produce an erection or if it does not last long enough for intercourse, inform your healthcare provider.
What If You Take Too Much VIAGRA?
Excessive dosing can lead to intensified side effects. Doses over 100 mg do not enhance effectiveness, so stick to your prescribed amount. If you suspect an overdose, contact your doctor immediately.
Possible Side Effects
Like all medications, VIAGRA may cause side effects, though not everyone will experience them. Most reported side effects are mild to moderate and transient.
If you experience chest pain during or after sexual activity:
- Stay calm and sit in a semi-upright position.
- Avoid taking nitrates for relief.
- Seek immediate medical attention.
All medications, including VIAGRA, can trigger allergic reactions. If you notice symptoms like sudden wheezing, difficulty breathing, dizziness, or facial swelling, contact your doctor right away.
Prolonged and painful erections have been reported?if an erection lasts over four hours, seek medical help immediately.
Sudden vision loss is another critical concern; stop taking VIAGRA and consult your doctor without delay.
The most common side effect, experienced by over 10% of users, is a headache. Other common side effects (1-10%) include facial flushing, indigestion, visual changes (color tinge, light sensitivity, blurred vision), nasal congestion, and dizziness. Uncommon side effects may include vomiting, skin rash, and irregular heartbeat, among others. Rare side effects include high or low blood pressure, fainting, or sudden hearing loss.
If any side effects become severe or you notice any not mentioned here, inform your healthcare provider.
Storage Instructions
- Keep out of reach of children.
- Store below 30шC.
- Keep in the original packaging to protect from moisture.
Do not use VIAGRA after the expiration date on the package. Dispose of unused medications responsibly to protect the environment?consult your pharmacist for guidance.

