Sildenafil Teva
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When comparing erectile dysfunction treatments, Viagra (sildenafil) and Cialis (tadalafil) are the two most popular options. Both are proven PDE5 inhibitors that can effectively treat ED, but they differ in duration, onset time, and how they fit into your lifestyle. Understanding these differences helps you make an informed choice about which treatment may be more suitable for your needs and preferences.
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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.
Both Viagra (sildenafil) and Cialis (tadalafil) belong to a class of medications called PDE5 inhibitors. They work by blocking the enzyme phosphodiesterase type 5, which increases blood flow to the penis during sexual arousal. Neither medication causes automatic erections - sexual stimulation is still required for both treatments to be effective.
The most significant difference between these treatments is how long they remain active in your system. Viagra typically provides effectiveness for 4-6 hours after taking a dose, making it suitable for planned sexual activity. Cialis, however, can remain effective for up to 36 hours, earning it the nickname "the weekend pill" due to its longer window of opportunity.
This extended duration doesn't mean you'll have an erection for 36 hours - rather, you may be able to achieve erections more easily during this timeframe when sexually aroused. The choice between shorter or longer duration often depends on your lifestyle and relationship preferences.
Viagra usually takes effect within 30-60 minutes of taking it, though fatty meals can delay this onset. It's generally recommended to take Viagra on an empty stomach or after a light meal for optimal effectiveness. Cialis also typically works within 30 minutes and is less affected by food, making it more flexible around meal times.
Viagra is available in 25mg, 50mg, and 100mg strengths, with 50mg being the standard starting dose. Cialis comes in 2.5mg, 5mg, 10mg, and 20mg tablets. Cialis also offers a daily low-dose option (2.5mg or 5mg), which can be taken regularly rather than as needed, providing continuous readiness for sexual activity.
Both medications share similar potential side effects, including headache, flushing, nasal congestion, and digestive issues. However, some men may find they tolerate one medication better than the other. Viagra is slightly more associated with visual disturbances, while Cialis may occasionally cause back pain or muscle aches.
At EverydayMeds, patients can choose between branded medications and their generic equivalents at checkout. Generic sildenafil contains the same active ingredient as Viagra but typically costs significantly less. Similarly, generic tadalafil offers the same effectiveness as branded Cialis at a reduced price point, making treatment more accessible without compromising quality.
Your lifestyle and preferences play a crucial role in determining which treatment may be more suitable. If you prefer planned, shorter-duration treatment, Viagra or generic sildenafil might be ideal. If you value spontaneity and prefer not to time your medication precisely, Cialis or generic tadalafil could be more convenient.
Some men find that switching between treatments or trying both helps them determine which works better for their individual response and lifestyle needs. Both are prescription-only medicines in the UK, requiring consultation with a qualified prescriber who can assess your suitability and medical history.
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