Assurans (Sildenafil Citrate) — Patient Information

Assurans contains sildenafil citrate, a medicine used to treat certain sexual and blood-flow conditions. This guide is written to be clear and practical for everyday use in Australia. It explains how Assurans works, how it’s taken, what to expect, and important safety information.

Important: This information is general. Your prescriber/pharmacist (or healthcare professional) can help tailor advice to your specific health situation.

Quick Overview

• Active ingredient: Sildenafil citrate
• Common uses: Erectile dysfunction (ED) and pulmonary arterial hypertension (PAH), depending on the product strength and direction from a clinician
• How it works: Increases blood flow to the penis (for ED) or to the lungs (for PAH) by helping relax blood vessels
• Typical onset: Often within 30–60 minutes for ED
• Duration: Effects may last up to about 4 hours for ED
• Strengths: Available in different tablet strengths (as supplied by Australian pharmacy listings)

What Is Assurans?

Assurans is an oral medicine whose active component is sildenafil citrate. Sildenafil belongs to a class of medicines called PDE5 inhibitors (phosphodiesterase type 5 inhibitors).

In Australia, sildenafil products are available through appropriate medical pathways and pharmacy supply channels. The product you receive may vary in strength and how it is intended to be used, depending on the condition being treated.

How Sildenafil Works (Mechanism of Action)

Sildenafil helps the body’s natural response to sexual stimulation by supporting blood flow.

• PDE5 inhibition: Sildenafil blocks the enzyme PDE5.
• More cGMP: This helps increase cGMP (a chemical messenger involved in smooth muscle relaxation).
• Blood vessel relaxation: As smooth muscles relax, blood vessels widen (vasodilation), improving blood flow.
• For erectile dysfunction: Improved blood flow to penile tissue can support an erection when you are sexually stimulated.
• For pulmonary arterial hypertension: Relaxation of lung blood vessels can help reduce pressure in the pulmonary circulation.

Key point: Sildenafil does not create sexual desire by itself. For ED, it works best with sexual stimulation.

Pharmacokinetics (How the Body Processes Sildenafil)

Absorption: Sildenafil is absorbed from the gut after you take a tablet by mouth. Absorption can be slowed by a heavy meal (especially one high in fat).

Onset and peak levels: For ED, the effect often begins within about 30 minutes, with peak blood levels typically around 1 hour after dosing (timing can vary by person).

Distribution: Sildenafil distributes throughout the body. It is highly bound to plasma proteins.

Metabolism: The liver metabolises sildenafil primarily via CYP3A4 (a major drug-metabolising enzyme).

Elimination: Sildenafil and its metabolites are cleared mainly through the liver/bile and the kidneys. The elimination half-life is typically around several hours (commonly described as ~3–5 hours, though it varies by individual).

Why this matters: Medicines that affect liver enzymes (e.g., some antifungals/antibiotics) may increase or decrease sildenafil levels and side effects.

Indications (What Assurans Is Used For)

Depending on the approved use and product strength, Assurans/sildenafil may be used for:

• Erectile dysfunction (ED): Difficulty achieving or maintaining an erection suitable for sexual activity.
• Pulmonary arterial hypertension (PAH): Helps improve exercise capacity and symptoms in certain patients with PAH (this use is typically guided by a clinician and may involve different dosing schedules).

Always follow the specific instructions provided for the product you have been supplied.

Typical Use and Timing

For Erectile Dysfunction (ED)

• When to take: Take as directed, typically about 30–60 minutes before sexual activity.
• How long it may help: Effects can last for up to around 4 hours for many people.
• Sexual stimulation is required: Sildenafil supports the natural process; it does not automatically cause an erection.
• Maximum frequency: Do not exceed the dosing schedule provided on your instructions or by your healthcare professional.

For Pulmonary Arterial Hypertension (PAH)

PAH dosing is usually more regular than ED dosing and is tailored to individual needs. Follow your clinician’s direction for timing and tablet strength.

Dosing (General Guidance for Patients)

Because dosing varies with the condition being treated, age, kidney/liver function, and interacting medicines, this section provides general information rather than a personalised plan. Your supply may include specific dosing instructions—always follow those.

Common ED dosing approach (illustrative)

• Typical start doses for ED are often lower, with adjustment based on effectiveness and tolerance.
• Many regimens are taken as needed, within a set maximum limit per day.

Adjustments may be needed

• Liver impairment may require lower dosing.
• Kidney impairment may require lower dosing.
• Older age may increase sensitivity.
• Drug interactions (especially enzyme inhibitors) can raise sildenafil levels and side effects.

Practical tip: If you’re not getting the desired effect, do not simply increase the dose without advice. Instead, consider factors like timing, food, alcohol, and interacting medicines.

Food Interactions

Food can affect how fast sildenafil works. A heavy or high-fat meal may slow absorption, which can delay onset.

• If you take sildenafil after a large/heavy meal, it may take longer to start working.
• For best timing (ED), many people find it helps to take it with a lighter meal or when not immediately after a heavy dinner.
• Food generally does not remove sildenafil’s effect, but it may shift the timing.

Hydration: Staying hydrated may help overall comfort, though avoid excessive alcohol (see below).

Alcohol Interactions

Drinking alcohol can affect erections and sexual performance directly, even if sildenafil is taken correctly.

• Alcohol may increase dizziness or light-headedness when combined with sildenafil.
• Heavy alcohol can make ED less responsive, regardless of the medication.
• If you experience headaches, flushing, or nausea, consider reducing alcohol intake on future occasions.

Safety note: Avoid driving or operating machinery if you feel dizzy after taking sildenafil.

Medicine Interactions (Very Important)

Certain medicines can be dangerous to combine with sildenafil because they may cause severe blood pressure drops or significantly alter sildenafil levels.

Medicines that must NOT be combined (nitrates)

Do not take sildenafil with nitrates (often used for chest pain/angina). This combination can cause a dangerous fall in blood pressure.

• Nitroglycerin (glyceryl trinitrate)
• Isosorbide dinitrate / isosorbide mononitrate
• “Poppers” containing amyl nitrite or similar nitrites

Other strong CYP3A4 inhibitors

Some medicines can increase sildenafil levels, raising the risk of side effects such as low blood pressure, dizziness, and headaches.

• Some antifungals (e.g., ketoconazole, itraconazole)
• Some HIV protease inhibitors
• Some antibiotics/medicines affecting CYP3A4

Alpha-blockers (for prostate/urinary symptoms or blood pressure)

Sildenafil combined with alpha-blockers may lower blood pressure further in some people, causing dizziness or faintness. Your clinician may recommend careful timing or a lower starting dose.

Riociguat (for pulmonary hypertension)

Combining sildenafil with riociguat is generally not recommended due to the risk of excessive blood pressure lowering.

Other ED medicines

Avoid using sildenafil with other PDE5 inhibitors (e.g., tadalafil, vardenafil) at the same time unless your clinician specifically advises it.

Blood pressure medicines

Sildenafil can enhance the blood-pressure-lowering effects of some medications. Most people tolerate this well, but those prone to low blood pressure should be cautious and seek advice.

Always tell your pharmacist about all medicines and supplements you take, including herbal products.

Safety Profile and Side Effects

Common side effects

These may occur soon after taking sildenafil and usually lessen as your body adjusts:

• Headache
• Flushing (warmth/redness of the face)
• Dizziness or light-headedness
• Indigestion or stomach discomfort
• Nasal congestion
• Visual changes (e.g., mild blurring or increased light sensitivity) in some people

Serious but uncommon warning signs

Seek urgent medical help if you experience:

• Chest pain or severe shortness of breath
• Fainting or severe dizziness
• Sudden vision loss or severe visual disturbance
• Sudden hearing loss or ringing with hearing changes
• Priapism (an erection lasting 4 hours or more)
• Severe allergic reactions (swelling of face/lips, difficulty breathing)

When sildenafil may be unsafe

• If you have been advised not to take PDE5 inhibitors due to your medical history
• If you take nitrates or riociguat
• If you have certain heart conditions where sexual activity or blood pressure changes are risky

Heart and circulation note: Sexual activity can stress the cardiovascular system. If you have heart disease, discuss suitability with a healthcare professional.

Practical Use Tips for Best Results

• Plan the timing: Take 30–60 minutes before sex for ED (adjust based on how you personally respond).
• Choose a lighter meal: Avoid heavy, high-fat meals right before dosing if you want predictable timing.
• Use sexual stimulation: Sildenafil works best when you’re aroused.
• Start low and assess: If your clinician recommends a starting dose, use it consistently before changing.
• Keep track of effects: Note timing, meal size, alcohol intake, and response—this helps refine next steps.
• Avoid mixing with unsafe medicines: Especially nitrates and riociguat.
• Do not exceed the daily maximum: Taking more does not reliably improve results and increases risk.
• Watch for side effects: Headache or flushing can be normal; severe symptoms require medical attention.

Alternative Options

If Assurans is not suitable or not working as expected, there may be other options.

Other PDE5 inhibitors

• Tadalafil (often longer-lasting; sometimes used more frequently depending on regimen)
• Vardenafil
• Avanafil

Non-medicine approaches

• Lifestyle changes: improving sleep, reducing alcohol, increasing activity, and addressing stress
• Managing underlying conditions: diabetes, hypertension, cardiovascular disease
• Counselling/sex therapy: can help when psychological factors are involved
• Mechanical options: vacuum erection devices may be appropriate in some cases

PAH-specific alternatives

For pulmonary arterial hypertension, treatment may involve other classes of medicines (e.g., endothelin receptor antagonists, prostacyclin pathway agents). These decisions should be made with a specialist.

Assurans and Australia: Market / Legal Context

In Australia, erectile dysfunction and pulmonary arterial hypertension therapies are regulated to ensure appropriate supply and safe use. Availability can depend on:

• Product formulation and strength
• Indication (ED vs PAH)
• Regulatory status and how the product is supplied in the pharmacy channel
• Safety screening for medical suitability and interactions, especially nitrates and cardiovascular risk

Always use legitimate pharmacy supply routes. Be cautious with unverified online sellers and counterfeit products.

Recent guidance note: Australia’s medicines supply and telehealth practices can change over time. For the most current information, check updates from Australian regulatory authorities and your pharmacy’s guidance.

Delivery and Availability (Online Pharmacy)

Assurans may be available via participating Australian online pharmacies, subject to stock levels, product strength, and eligibility checks. Delivery typically depends on:

• Your location within Australia
• Order cut-off times and dispatch schedules
• Standard or express post options (where offered)

What to expect: You will usually receive a confirmation email, tracking details (if included), and delivery to the address provided during checkout.

Storage: Keep tablets in the original packaging, store at room temperature as directed on the label, and protect from moisture.

Frequently Asked Questions (FAQ)

1) How quickly does Assurans work?

For erectile dysfunction, effects often begin within 30–60 minutes. A heavy meal can delay onset. For many people, the benefit lasts up to about 4 hours, though individual response varies.

2) Can I take Assurans every day?

That depends on what you’re treating and the specific dosing instructions for your product strength. ED dosing is usually as needed, while PAH dosing is often regular. Follow the directions provided with your supply.

3) Will sildenafil cause an erection automatically?

No. Sildenafil supports erections by improving blood flow, but sexual stimulation is still required.

4) What if it doesn’t work the first time?

Consider timing, food, and alcohol. Ensure you took it with the recommended interval before sexual activity. If it’s not working consistently, speak with a healthcare professional before changing dose.

5) Is it safe with alcohol?

Small amounts may be tolerated by some people, but alcohol can worsen erections and increase side effects such as dizziness. Heavy drinking can reduce effectiveness and increase risk. Use caution.

6) What medicines should I avoid?

The most critical are nitrates (for angina) and riociguat. Also discuss alpha-blockers and medicines that affect liver enzymes. Always provide your full medicine list to your pharmacist.

7) What should I do if I have side effects?

Common mild effects (e.g., headache, flushing) often settle. If you have severe dizziness, chest pain, fainting, vision/hearing changes, or an erection lasting 4 hours or more, seek urgent medical attention.

8) Can I drive after taking Assurans?

If you feel dizzy or light-headed, avoid driving or operating machinery until you feel well again.

9) Are there lifestyle changes that improve results?

Yes. Reducing smoking, moderating alcohol, improving exercise and weight, controlling diabetes and blood pressure, and addressing stress can improve erectile function and cardiovascular health.

10) How do I store Assurans tablets?

Store at room temperature in the original packaging, away from moisture. Keep out of reach of children.

Summary

Assurans (sildenafil citrate) is a PDE5 inhibitor that supports improved blood flow. For erectile dysfunction, it can help you achieve and maintain an erection when sexually stimulated, often starting within an hour. For pulmonary arterial hypertension, sildenafil supports lung blood vessels under specialist guidance.

For best results and safety: take it at the right time, be mindful with food and alcohol, and avoid dangerous interactions—especially nitrates. If you have concerns about your health, heart condition, or medicine list, ask a pharmacist or healthcare professional before using.

Key Information at a Glance