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Viagra 50MG Tab — Side Effects & Warnings

Known side effects of Viagra 50MG Tab include Headache,flushing,dizziness,indigestion (dyspepsia),nasal congestion,nausea,visual disturbances (blurred vision/blue tinge),back pain. Not everyone experiences these side effects.

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated August 2026

Common Side Effects

Headache
flushing
dizziness
indigestion (dyspepsia)
nasal congestion
nausea
visual disturbances (blurred vision/blue tinge)
back pain

This is not an exhaustive list. Consult your doctor if you notice any unusual symptoms.

Important Warnings

Prescription-only medicine. Do not use with nitrates (e.g., nitroglycerin/isosorbide) or riociguat due to risk of severe hypotension. Use with caution in heart disease, recent heart attack/stroke, low blood pressure, uncontrolled high blood pressure, severe liver/kidney disease, retinitis pigmentosa, bleeding disorders, peptic ulcer, penile deformity, or conditions predisposing to priapism (e.g., sickle cell anemia). Seek urgent care for chest pain, sudden vision loss, sudden hearing loss, or erection lasting >4 hours (priapism).

Drug Interactions

Viagra 50MG Tab may interact with the following:

Nitrates (nitroglycerin
isosorbide)
riociguat
alpha-blockers (tamsulosin
prazosin) and other antihypertensives (additive BP lowering)
CYP3A4 inhibitors (ketoconazole
itraconazole
erythromycin
clarithromycin
ritonavir/cobicistat) increase levels
CYP3A4 inducers (rifampicin
carbamazepine
phenytoin) reduce effect
other PDE5 inhibitors or other ED treatments

Always tell your doctor about all medicines you are taking, including over-the-counter drugs and supplements.

Pregnancy Safety

Not recommended (not indicated for use in women)

Alcohol Interaction

Use with caution (alcohol may increase dizziness and can worsen erectile dysfunction)

Habit Forming

Storage

Store below 30°C in a cool, dry place. Protect from moisture and direct light. Keep out of reach of children.

Viagra 50MG Tab — Safety Summary

Composition: Sildenafil (50mg)
Prescription: Required (Rx)
Pregnancy: Not recommended (not indicated for use in women)
Alcohol: Use with caution (alcohol may increase dizziness and can worsen erectile dysfunction)
Habit forming: No

Viagra 50MG Tab — Safety FAQs

What should I do if I experience side effects?

Mild side effects often resolve on their own. If side effects are severe or persistent, stop the medicine and consult your doctor immediately.

Are all listed side effects common?

No. Some side effects are common while others are rare. Not everyone experiences side effects. Consult your doctor if you are concerned.

Can I take this medicine with other drugs?

Some medicines interact with each other. Always inform your doctor about all medicines you are currently taking.

When should I seek emergency help?

Seek immediate medical attention if you experience severe allergic reactions (difficulty breathing, swelling of face/throat), chest pain, or any life-threatening symptoms.

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Safety disclaimer

This information is for educational purposes only and is not a substitute for professional medical advice. If you experience severe side effects, seek medical attention immediately.