Sildenafil Teva
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When your partner is prescribed sildenafil for erectile dysfunction, understanding potential side effects helps you both prepare and respond appropriately. This practical guide covers common and serious side effects of sildenafil, what to watch for, and when to seek medical help. EverydayMeds offers both generic sildenafil and branded Viagra options through our UK-licensed prescribers.
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When PDE5 is suppressed, blood is able to flow more freely through the body—including to the (you guessed it) penis.

More blood flow to the penis means harder, more satisfying erections once you're sexually stimulated.
Most men experience mild side effects when taking sildenafil. As a partner, you may observe facial flushing or redness, particularly around the face and neck area. Your partner might complain of headaches, which affect approximately 16% of users. Nasal congestion is also common - you might notice them sounding slightly stuffy. Indigestion or stomach upset can occur, especially if taken with food. These effects typically begin within an hour of taking the medication and usually resolve within 4-6 hours.
Some men experience temporary visual disturbances, including a blue tinge to vision or increased sensitivity to light. While usually harmless, sudden vision loss in one or both eyes requires immediate medical attention. If your partner reports sudden changes in vision, stop the medication and seek emergency care immediately. Similarly, any sudden hearing loss or ringing in the ears needs urgent medical assessment.
Sildenafil can cause temporary drops in blood pressure, leading to dizziness or light-headedness. Watch for signs of your partner feeling faint, particularly when standing up quickly. Chest pain, irregular heartbeat, or shortness of breath during or after sexual activity requires immediate medical attention - call 999 if these occur. Men with existing heart conditions need particularly careful monitoring.
The most serious side effect is priapism - an erection lasting more than 4 hours. This is a medical emergency requiring immediate hospital treatment to prevent permanent damage. If this occurs, go to A&E immediately, regardless of embarrassment. Priapism affects less than 1% of users but requires urgent intervention.
Most side effects are manageable and temporary. Ensure your partner stays well-hydrated and avoids alcohol, which can worsen dizziness and headaches. Over-the-counter pain relief can help with headaches, but check with the prescriber first. If side effects are severe or persistent, contact EverydayMeds or your GP for advice about dose adjustment or switching between generic sildenafil and branded Viagra options.
Understanding these effects helps create a supportive environment. Many side effects are mild and become less noticeable over time as the body adjusts. Open communication about any symptoms ensures safety and builds confidence in the treatment. Remember that both generic sildenafil and Viagra contain the same active ingredient, so side effect profiles are identical regardless of which option your partner chooses.
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