ED Pill Comparison Tool
Recommended Medication
Key Features
When you’re trying to pick an erectile dysfunction (ED) pill, the choices can feel endless. Viagra Professional is often the first name that pops up, but there are several other options that might suit your lifestyle, budget, or medical needs better. This guide breaks down how Viagra Professional stacks up against the most common alternatives, covering everything from how fast they work to how much you’ll spend in the UK.
Key takeaways
- Viagra Professional uses 100mg of sildenafil, offering a reliable onset in 30‑60minutes and lasting up to 5hours.
- Cialis (tadalafil) can last 36hours, making it the go‑to for spontaneous plans.
- Levitra (vardenafil) provides a faster onset (15‑30minutes) but a shorter window (4‑5hours).
- Stendra (avanafil) works in as little as 15minutes with minimal food impact.
- Generic sildenafil matches the original’s efficacy at a fraction of the price, while herbal supplements lack clinical backing.
What is Viagra Professional?
Viagra Professional is a UK‑marketed brand of the phosphodiesterase‑5 (PDE‑5) inhibitor sildenafil. It comes in 100mg tablets, designed for men who need a strong, predictable response. The drug works by relaxing smooth muscle in the penis, allowing blood to flow in when sexual stimulation occurs. Because it’s a branded product, the price per tablet is higher than the generic version, but many users trust the consistency of the brand.
How does sildenafil function?
Sildenafil, the active ingredient in Viagra Professional, blocks the enzyme PDE‑5 that would otherwise degrade cGMP, a molecule that regulates blood vessel dilation. By preserving cGMP, the drug enhances blood flow to the corpora cavernosa, facilitating an erection. Its effects typically start within 30‑60minutes after ingestion and fade after about five hours. Food, especially high‑fat meals, can delay the onset, so many doctors advise taking it on an empty stomach.
Popular alternatives
While sildenafil dominates the market, several other PDE‑5 inhibitors offer distinct benefits. Below are the most widely prescribed brands.
Cialis (tadalafil) is famous for its “weekend pill” reputation. A 10mg dose can stay active for up to 36hours, giving you flexibility without needing to time the medication precisely.
Levitra (vardenafil) delivers a slightly quicker onset-often 15‑30minutes-while maintaining a duration similar to Viagra Professional (about 4‑5hours). It’s a good middle ground if you dislike the long tail of Cialis but want a faster kick‑in.
Stendra (avanafil) is the newest contender, working in as little as 15minutes with minimal food interference. Its 200mg tablets are designed for men who need rapid, reliable results without the dietary restrictions of sildenafil.
Generic sildenafil contains the same active molecule as Viagra Professional but is sold without a brand label. In the UK, a pack of 4×100mg tablets typically costs around £12‑£15, compared to £35‑£40 for the branded version.
Some men explore herbal remedies like Horny Goat Weed (Epimedium). While it’s popular in the supplement aisle, clinical trials are limited, and the potency varies widely. If you’re considering an herbal option, discuss it with a GP to avoid harmful interactions.
Side‑effect snapshot
- Viagra Professional (sildenafil): headache, flushing, upset stomach, rare visual changes.
- Cialis (tadalafil): back pain, muscle aches, indigestion, prolonged erections (rare).
- Levitra (vardenafil): dizziness, nasal congestion, rash.
- Stendra (avanafil): mild headache, nasal congestion, occasional back pain.
- Generic sildenafil: mirrors branded side‑effects.
- Herbal supplements: can cause blood pressure swings, interact with anticoagulants.

Comparison table
Brand | Active Ingredient | Typical Dose | Onset | Duration | Food Impact | UK Avg. Cost (4 tablets) |
---|---|---|---|---|---|---|
Viagra Professional | Sildenafil | 100mg | 30‑60min | 4‑5hrs | High‑fat meals delay | £35‑£40 |
Generic Sildenafil | Sildenafil | 100mg | 30‑60min | 4‑5hrs | High‑fat meals delay | £12‑£15 |
Cialis | Tadalafil | 10mg | 30‑120min | Up to 36hrs | Minimal | £30‑£35 |
Levitra | Vardenafil | 10mg | 15‑30min | 4‑5hrs | High‑fat meals delay | £28‑£33 |
Stendra | Avanafil | 200mg | 15‑30min | 4‑6hrs | Minimal | £40‑£45 |
Horny Goat Weed | Epimedium (herbal) | 500‑750mg (supplement) | Variable | Variable | None | £5‑£12 |
Decision checklist: Which pill fits you?
- Timing flexibility? If you want a “anytime” option, Cialis’s 36‑hour window is unmatched.
- Quick onset? Stendra and Levitra are the fastest, ideal for spontaneous encounters.
- Budget constraints? Generic sildenafil delivers the same effect as Viagra Professional for a third of the price.
- Food considerations? If you often have a hearty dinner, choose a drug with minimal food impact-Cialis or Stendra.
- Health profile? Men on nitrates or with severe heart disease should avoid all PDE‑5 inhibitors; consult a GP before starting.
How to get your prescription in the UK
All the pharmaceuticals listed above require a prescription from a qualified GP or a licensed sexual health clinic. You can:
- Book a face‑to‑face appointment with your GP and discuss symptoms openly.
- Use accredited online telemedicine services that provide a rapid prescription after a brief questionnaire and video call.
- Visit a private sexual health clinic for same‑day assessments.
Once you have a prescription, you can fill it at any pharmacy. Prices differ between NHS‑provided prescriptions (often subsidised) and private purchases. For example, a private pack of generic sildenafil may cost £12, while the same pack via an NHS prescription could be covered fully or partially depending on eligibility.
Practical tips for safe use
- Start with the lowest effective dose-most men begin with 50mg of sildenafil and adjust.
- Never combine PDE‑5 inhibitors with nitrate medication (e.g., nitroglycerin) - it can cause a dangerous blood pressure drop.
- Alcohol in moderation is fine; excessive drinking can blunt the drug’s effect.
- Store tablets at room temperature, away from moisture.
- If you miss a dose (unlikely with on‑demand pills), do not double up; wait until the next opportunity.
Frequently Asked Questions
Is Viagra Professional the same as regular Viagra?
Yes. Viagra Professional contains the same 100mg dose of sildenafil as the original Pfizer‑branded Viagra. The main difference lies in branding and price.
Can I take Viagra Professional with alcohol?
A moderate amount of alcohol (one or two drinks) usually won’t affect the drug, but heavy drinking can reduce its effectiveness and increase side‑effects like dizziness.
Why does Cialis last so long?
Cialis’s active ingredient, tadalafil, has a longer half‑life (about 17.5hours) compared with sildenafil’s 4‑5hour half‑life, which translates into a therapeutic window of up to 36hours.
Is it safe to buy generic sildenafil online?
It can be safe if you use a reputable, licensed pharmacy that requires a prescription. Beware of black‑market sites that sell counterfeit tablets.
Do herbal supplements work for ED?
Evidence is limited. Some men report mild improvements, but herbal products lack the rigorous testing that PDE‑5 inhibitors undergo. Always discuss with a doctor before trying them.
Next steps
1. Evaluate the decision checklist above and pinpoint which factor matters most to you.
2. Book a GP or tele‑medicine appointment to discuss ED symptoms openly.
3. Once you have a prescription, compare prices for the brand versus generic versions. Remember that the cheapest option with the same active ingredient (generic sildenafil) often offers the same result.
4. Start with the lowest effective dose and monitor how your body reacts. If side‑effects appear, talk to your doctor about adjusting the dose or switching to a different drug.
5. Keep the conversation going with your partner-open communication can improve confidence and overall satisfaction.
Choosing the right ED medication is a personal decision that blends medical safety, lifestyle fit, and cost. By understanding how Viagra Professional measures up against alternatives, you can make an informed choice that works for you.
1 Comments
When you're weighing Viagra Professional against the other pills, it's worth noting that the onset timing really hinges on whether you eat a heavy meal. A 100 mg dose of sildenafil tends to hit its stride in about half an hour if your stomach is relatively empty. The cost gap between the branded version and the generic can feel steep, but many folks swear by the consistency of the brand. Ultimately, balance the budget with how predictable you need the effect to be.
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