Comparing Sildenafil vs Spedra for Erectile Dysfunction

When choosing between ED treatments, many men compare sildenafil (including Viagra) with Spedra (avanafil). Both are effective PDE5 inhibitors, but they differ in onset time, duration, and cost. Sildenafil, available as both branded Viagra and generic versions, has been proven effective for over 25 years. Understanding these differences can help you make an informed choice about which treatment may be more suitable for your needs.

  • Sildenafil typically costs significantly less than Spedra, especially as a generic option
  • Spedra may work faster (15-30 minutes) whilst sildenafil takes 30-60 minutes
  • Both treatments last approximately 4-6 hours and require sexual stimulation to work
  • Sildenafil has extensive clinical data with over two decades of proven safety and effectiveness
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Not sure which one? Here's the honest comparison.

Sildenafil
~60 min
~4 hrs
you like to plan ahead
Tadalafil (as-needed)Most prescribed
~30 min
up to 36 hrs
you want a whole weekend covered
Tadalafil Daily
always active
continuous
you never want to think about timing
Vardenafil
~15–30 min
~8 hrs
you want the fastest onset

How ED treatment works in your body.

Increases blood flow

Increases blood flow

When PDE5 is suppressed, blood is able to flow more freely through the body—including to the (you guessed it) penis.

Increase erections

Increase erections

More blood flow to the penis means harder, more satisfying erections once you're sexually stimulated.

Sildenafil vs Spedra: Key Differences and Similarities

How Both Medications Work

Sildenafil and Spedra both belong to a class of medications called PDE5 inhibitors. They work by blocking the phosphodiesterase type 5 enzyme, 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.

Speed of Action

One of the main differences between these treatments is how quickly they begin working. Spedra (avanafil) may start working within 15-30 minutes, making it one of the faster-acting ED treatments available. Sildenafil typically takes 30-60 minutes to become effective, though this can vary between individuals.

Food intake can affect both medications, but Spedra may be less affected by meals compared to sildenafil. Fatty meals can particularly delay sildenafil's onset of action.

Duration of Effect

Both sildenafil and Spedra provide similar duration of effectiveness, typically lasting 4-6 hours. This doesn't mean an erection will last this long, but rather that the medication may help achieve erections during this window when sexually stimulated.

Dosage Options

Sildenafil is available in 25mg, 50mg, and 100mg strengths, with 50mg being the typical starting dose. At EverydayMeds, patients can choose between branded Viagra or generic sildenafil at checkout - both contain the same active ingredient. Spedra comes in 50mg, 100mg, and 200mg tablets, with 100mg being the standard starting dose.

Cost Considerations

Generic sildenafil offers significant cost savings compared to Spedra whilst providing the same proven effectiveness. This makes sildenafil particularly attractive for men seeking long-term ED treatment. Even branded Viagra may be more cost-effective than Spedra for many patients.

Clinical Evidence and Experience

Sildenafil has over 25 years of clinical use and extensive research data supporting its safety and effectiveness. It was the first oral PDE5 inhibitor approved for ED treatment. Spedra, whilst newer, also has strong clinical trial data showing its effectiveness.

Side Effects Profile

Both medications may cause similar side effects, including headaches, facial flushing, indigestion, and nasal congestion. Some users report that Spedra may have fewer side effects, though individual responses vary considerably. Both are generally well-tolerated when used appropriately under medical supervision.

Which Treatment Might Suit You?

The choice between sildenafil and Spedra often depends on individual priorities. If faster onset is important and cost isn't a primary concern, Spedra might be preferred. For those seeking proven effectiveness at lower cost, sildenafil represents excellent value.

At EverydayMeds, our UK-licensed prescribers can help determine which treatment may be most suitable based on your medical history, current medications, and personal preferences during your online consultation.

What you need to know about erectile dysfunction

It's one of the most common conditions we treat, and one of the most treatable.

What is Erectile Dysfunction?
ED means finding it hard to get or keep an erection firm enough for sex. It's not unusual to have an off night; the point at which it's worth doing something is when it's happening regularly, or when it's starting to bother you.
How will I feel when I take ED medication?
For most men, nothing feels different day to day. The medication works in the background — when you're sexually aroused, it helps blood flow where it's needed, so erections come more easily and last longer. It doesn't cause arousal on its own. Some men notice mild, short-lived effects like a headache, facial flushing or a stuffy nose, which usually pass as the dose wears off.
Why do I need a prescription for ED medication?
ED treatments are prescription-only medicines in the UK because they aren't suitable for everyone — for example, alongside certain heart conditions or medications like nitrates. That's why we ask you to complete a short online consultation first. A UK-registered prescriber reviews your answers to make sure your chosen treatment is safe and right for you before it's dispensed.
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