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 that helps men with erectile dysfunction. By relaxing the blood vessels in the penis, it significantly enhances blood flow during sexual arousal. VIAGRA is effective only when sexual stimulation occurs; it is not intended for individuals without erectile dysfunction, nor is it suitable for women.
Important Considerations Before Use
Before using VIAGRA, consult your healthcare provider if you:
- Are taking nitrates for chest pain, as this can lead to dangerously low blood pressure.
- Use nitric oxide donors (like amyl nitrite) due to similar risks.
- Have allergies to sildenafil or any ingredients in VIAGRA.
- Have severe heart or liver conditions.
- Recently suffered from a stroke or heart attack, or have low blood pressure.
- Have rare hereditary eye disorders, such as retinitis pigmentosa.
- Have experienced vision loss linked to non-arteritic anterior ischaemic optic neuropathy (NAION).
Special Precautions with VIAGRA
Inform your doctor if you have:
- Sickle cell anemia, leukemia, or multiple myeloma.
- A penile deformation or Peyronie's disease.
- Pre-existing heart issues, which require a thorough assessment before engaging in sexual activity.
- A stomach ulcer or bleeding disorders like hemophilia.
If you experience sudden vision loss or decrease, discontinue VIAGRA and seek immediate medical assistance.
Considerations for Children and Adolescents
VIAGRA is not recommended for individuals under 18 years of age.
Considerations for Patients with Kidney or Liver Issues
Make sure to inform your doctor if you have kidney or liver problems, as a lower dose may be necessary.
Interactions with Other Medications
Always inform your doctor or pharmacist about any medications you are currently taking, including over-the-counter drugs. VIAGRA may interact with certain medications, especially those prescribed for chest pain. In emergencies, make sure to tell healthcare providers if you've taken VIAGRA and when.
Do not combine VIAGRA with nitrates or nitric oxide donors due to the risk of severe blood pressure drops.
If you're on protease inhibitors for HIV, your doctor might start you with a lower dose of VIAGRA (25 mg).
Patients taking alpha-blockers for high blood pressure or prostate issues may experience dizziness due to potential low blood pressure. It's advisable to be on a regular daily dose of alpha-blockers before starting VIAGRA, and your doctor may recommend a lower dose (25 mg) of VIAGRA.
Taking VIAGRA with Food and Drink
You can take VIAGRA with or without food, but be aware that a heavy meal may delay its effectiveness. Limiting alcohol intake prior to use is advisable, as excessive drinking can impair your ability to achieve an erection.
Pregnancy and Breastfeeding
VIAGRA is not intended for use by women.
Driving and Machinery Use
Due to possible dizziness and vision changes, assess how VIAGRA affects you before driving or operating machinery.
Important Information About VIAGRA Ingredients
If you've been advised by your doctor to avoid certain sugars (like lactose), consult with them before using VIAGRA.
How to Use VIAGRA
Always adhere to your doctor's instructions when using VIAGRA. The typical starting dose is 50 mg. Do not exceed one dose per day, and take it about an hour before planned sexual activity, swallowing the tablet whole with a glass of water.
If the dosage feels too strong or weak, consult your doctor. VIAGRA requires sexual stimulation to work effectively and usually takes effect within 30 minutes to one hour, although a heavy meal may prolong this time.
If VIAGRA does not lead to an erection or if it does not last long enough for sexual intercourse, inform your healthcare provider.
Overdose
Taking more than the prescribed dose of VIAGRA can heighten side effects without improving effectiveness. Stick to the recommended dosage and contact your doctor if you accidentally take more than advised.
If you have any questions regarding the use of this medication, reach out to your healthcare provider.
Possible Side Effects
Like all medications, VIAGRA may cause side effects, although not everyone will experience them. Reported side effects are generally mild to moderate and short-lived.
In case of chest pain during or after sex:
- Sit in a semi-upright position and stay calm.
- Avoid using nitrates for chest pain relief.
- Contact your doctor immediately.
All medications, including VIAGRA, can lead to allergic reactions. If you notice symptoms like sudden wheezing, breathing difficulties, dizziness, or swelling of the face, lips, throat, or eyelids, seek immediate medical care.
Prolonged, painful erections have been reported with VIAGRA; if an erection lasts over four hours, contact a physician immediately.
If you experience sudden vision loss or decrease, stop taking VIAGRA and seek immediate medical attention.
Common Side Effects (likely in more than 1 in 10 patients):- Headache
- Facial flushing
- Indigestion
- Visual disturbances (including color tinges, light sensitivity, blurred vision)
- Nasal congestion
- Dizziness
- Vomiting
- Skin rash
- Eye bleeding
- Eye irritation
- Double vision
- Irregular heartbeat
- Muscle pain
- Drowsiness
- Fatigue
- High blood pressure
- Low blood pressure
- Stroke
- Nosebleeds
- Sudden hearing loss
Additional rare side effects reported post-marketing include heartbeat irregularities, chest pain, sudden death, heart attacks, or decreased blood flow to the brain. Most of these cases occurred in men with pre-existing heart conditions, and a direct relationship to VIAGRA remains unconfirmed. There have also been rare reports of seizures and severe skin reactions requiring immediate medical attention.
If any side effect becomes serious or if you notice any not mentioned here, inform your doctor right away.
Storage Guidelines
- Keep out of reach of children.
- Store below 30шC.
- Keep in the original packaging to protect against moisture.
- Do not use VIAGRA after the expiration date on the carton, which refers to the last day

