Sildenafil, the active ingredient in many erectile dysfunction (ED) medications including Viagra and Cenforce, has revolutionised men’s sexual health treatment since its introduction. Yet, one of the most common questions men face is: What dosage should I take—50mg, 100mg, or 200mg?
Choosing the right Sildenafil dosage isn’t just about how “strong” a pill is. It’s about balancing effectiveness with safety, understanding how your body responds, and considering long-term treatment outcomes. This article offers a comprehensive comparison between Sildenafil 50mg, 100mg, and 200mg to help you make an informed decision.
Understanding How Sildenafil Works
Before diving into dosage comparisons, it’s helpful to understand how Sildenafil works in the body. Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor, a class of drugs that enhances blood flow to the penis during sexual stimulation. It doesn’t create arousal but helps sustain an erection by relaxing blood vessels and allowing improved circulation.

Once taken, Sildenafil is usually effective within 30 to 60 minutes, with effects lasting between 4 to 6 hours depending on dosage, metabolism, and other health factors.
Why Dosage Matters in ED Treatment
Selecting the correct Sildenafil dosage is essential to:
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Achieve the desired sexual performance
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Minimise unwanted side effects
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Avoid long-term dependency or tolerance issues
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Ensure safety, especially if you have underlying health conditions
Sildenafil is available in several strengths, but the three most commonly prescribed doses are 50mg, 100mg, and 200mg.
Sildenafil 50mg: The Starting Dose
Who is it for?
Sildenafil 50mg is typically the recommended starting dose for most men who are trying ED treatment for the first time. It’s suitable for those with:
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Mild to moderate erectile dysfunction
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No previous experience with PDE5 inhibitors
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Concerns about potential side effects
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A lower body weight or higher sensitivity to medications
Effectiveness
For many men, 50mg is sufficient to achieve and maintain an erection during sexual activity. Clinical trials suggest that this dosage provides satisfactory results for approximately 60–70% of users.
Pros
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Lower risk of side effects
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Safe for first-time users
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Easy to adjust (either up or down)
Cons
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May not be strong enough for men with severe ED
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Shorter duration of action compared to higher doses in some individuals
Recommended Product: Cenforce 50mg
Sildenafil 100mg: The Most Common Dose
Who is it for?
Sildenafil 100mg is the standard or maintenance dose for many men. It is often prescribed when 50mg fails to produce the desired effect or when a more reliable and consistent outcome is needed. It suits:
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Men with moderate to severe ED
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Those who have tried 50mg with limited success
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Men without major contraindications or health concerns
Effectiveness
100mg offers a high success rate, with around 75–80% of users reporting satisfactory erections. It provides a good balance between strength and tolerability for most users.

Pros
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Reliable and consistent
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Suitable for long-term use (with medical supervision)
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Still within the safe range for most healthy men
Cons
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Moderate increase in side effects like flushing, headache, or dizziness
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Should not be combined with other vasodilators or alcohol
Recommended Product: Cenforce 100mg
Sildenafil 200mg: Maximum Strength
Who is it for?
Sildenafil 200mg is considered a high-dose prescription, typically reserved for men with severe or treatment-resistant ED. It may be recommended only when:
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Both 50mg and 100mg have failed
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The patient is healthy enough to tolerate stronger medication
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There are no underlying cardiovascular risks
Note: This dose should only be taken under direct medical supervision.
Effectiveness
For some men, 200mg can make the difference between frustration and restored confidence. However, it also carries the highest risk of side effects, including:
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Severe headache
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Visual disturbances (e.g., bluish vision)
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Low blood pressure
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Nausea or chest pain
Pros
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Potent and fast-acting
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May help men unresponsive to other doses
Cons
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Higher risk of adverse reactions
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Not suitable for long-term daily use
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Not ideal for men over 65 or those with underlying conditions
Recommended Product: Cenforce 200mg
Comparison Table: Sildenafil Dosages
Dosage | Best For | Effectiveness | Risk of Side Effects | Duration |
---|---|---|---|---|
50mg | First-time users, mild ED | Moderate | Low | 4–5 hours |
100mg | Most common, moderate ED | High | Moderate | 5–6 hours |
200mg | Severe, treatment-resistant ED | Very High | High | 6+ hours |
How to Know Which Dose is Right for You
There is no one-size-fits-all dosage of Sildenafil. The right dose depends on:
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Your age and weight
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General health
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Other medications you’re taking
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Frequency of sexual activity
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Previous responses to similar medications
Always start with the lowest effective dose, and increase only if necessary under professional guidance.

When to Adjust Your Dose
Consider increasing your dose if:
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You’ve taken 50mg but experience weak or no erections
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The effects wear off too quickly
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You’ve used it multiple times with inconsistent results
Consider reducing your dose if:
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You experience strong side effects (nausea, headaches, flushing)
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You’re combining it with other medications
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You have kidney or liver issues

Safety and Precautions
Before taking Sildenafil—regardless of dosage—you should:
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Consult a GP or sexual health specialist
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Avoid taking nitrates or alpha-blockers
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Limit alcohol, as it can reduce effectiveness
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Avoid grapefruit juice, which can affect absorption

People with serious heart conditions, recent strokes, or extremely low blood pressure should avoid Sildenafil unless cleared by a doctor.
Can You Split Sildenafil Tablets to Adjust Dosage?
Some men wonder if they can cut a 100mg tablet in half to get a 50mg dose or split a 200mg pill to reduce cost. While it is technically possible, this depends on:
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Whether the tablet is scored
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The integrity of the active ingredient
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Manufacturer guidelines
If you’re considering splitting tablets, consult your pharmacist or physician first.
Buying Sildenafil Online in Australia
At CenforceAU, we provide a discreet, secure and fully Australian-supported service to help you access:
We guarantee genuine medications, express shipping, and complete customer privacy. No awkward pharmacy queues—just trusted service delivered discreetly to your door.
Final Thoughts: Start Small, Stay Safe
Finding the right Sildenafil dosage is about effectiveness and safety working together. While 100mg is the most commonly used dose, many men find 50mg sufficient. 200mg is an option only for those who truly need it—and always under supervision.
If you’re just getting started, don’t rush for the highest strength. Begin with 50mg or 100mg and monitor how your body responds.
Need Help Choosing the Right Dose?
Speak to our support team or call us directly at (+61) 043 019 9348. We’re here to guide you toward the best Sildenafil solution for your lifestyle and needs.