Avanafil (Spedra/Stendra) for Erectile Dysfunction: Uses, Dosage & Side Effects

Avanafil (Spedra/Stendra) for Erectile Dysfunction: Uses, Dosage & Side Effects

Erectile dysfunction (ED) is one of the most common sexual health concerns worldwide, but it is also highly treatable. Among the medications available today, avanafil—sold under the brand names Spedra in Europe and Stendra in the United States—is known for its relatively rapid onset of action and generally favourable tolerability profile.

At PULSE Clinic, our medical team helps patients understand their ED treatment options so they can make informed decisions about their sexual health. Here's what you need to know about avanafil.

What Is Avanafil (Spedra/Stendra)?

Avanafil is a phosphodiesterase type 5 (PDE5) inhibitor, a class of prescription medicines used to treat erectile dysfunction. It works by inhibiting the PDE5 enzyme, helping the blood vessels in the penis relax and allowing increased blood flow during sexual stimulation. This can make it easier to achieve and maintain an erection.

Like other PDE5 inhibitors, avanafil does not cause an erection without sexual stimulation.

One of its main advantages is its relatively rapid onset of action, although the timing and effectiveness can vary between individuals.

How Does Avanafil Work?

Like other PDE5 inhibitors—including sildenafil (Viagra) and tadalafil (Cialis)—avanafil improves blood flow to the penis in response to sexual stimulation.

Key features of avanafil

• Relatively fast-acting — some men may begin to experience an effect within around 15 minutes, although individual responses vary.
• Several hours of effect — avanafil can provide an opportunity for sexual activity for several hours after taking a dose. This does not mean that an erection should last continuously.
• Generally well tolerated — common side effects include headache, flushing, nasal congestion, and indigestion, although side effects vary from person to person.

Dosage and How to Take Avanafil

Avanafil is usually taken as needed, approximately 15–30 minutes before sexual activity. It is available in 50 mg, 100 mg and 200 mg strengths.

The appropriate dose depends on factors such as your overall health, other medicines you take, kidney or liver function, and how you respond to treatment. Your doctor will recommend the most suitable dose for you.

Important dosing considerations

• Take orally — swallow the tablet with or without food.
• Timing matters — take it before sexual activity according to your doctor's instructions. Some men may experience an effect relatively quickly, but response varies.
• Limit alcohol — drinking large amounts of alcohol can increase the risk of dizziness, low blood pressure, and other side effects and may make it more difficult to achieve an erection.
• Do not exceed one dose in 24 hours.

Always follow the instructions provided by your prescribing healthcare professional rather than adjusting the dose yourself.

Potential Side Effects of Avanafil

Avanafil is generally well tolerated, but side effects can occur.

Common side effects

• Headache
• Flushing
• Nasal congestion or a stuffy nose
• Indigestion (dyspepsia)
• Dizziness

Side effects are often mild, but your individual risk depends on your health and other medicines you may be taking.

Rare but serious side effects requiring urgent medical attention

• Sudden vision loss or significant changes in vision
• Sudden hearing loss or significant changes in hearing
• An erection lasting longer than 4 hours (priapism)
• Chest pain or other concerning symptoms during sexual activity

Seek urgent medical attention if you experience any serious or unexpected symptoms.

Who Should Avoid Avanafil?

Avanafil is not suitable for everyone. Speak with a doctor before using it, and in some situations it should be avoided.

Important considerations include:

• Nitrate medicines — Avanafil must not be taken with nitrate medicines, which are commonly prescribed for chest pain. The combination can cause a potentially dangerous drop in blood pressure.
• Certain heart conditions—Men with unstable or serious cardiovascular conditions may need to avoid sexual activity or PDE5 inhibitors until their condition has been medically assessed.
• Severe liver or kidney impairment — Avanafil may not be suitable depending on the severity of the condition and should only be used following medical assessment.
• Allergy to avanafil or its ingredients — Anyone with a known allergy should not take the medicine. Seek medical attention if you develop signs of a serious allergic reaction, such as significant swelling or difficulty breathing.

You should also tell your healthcare provider about all prescription medicines, over-the-counter medicines, and supplements you take, as some can interact with avanafil.

Avanafil vs. Other PDE5 Inhibitors

Avanafil belongs to the same drug class as sildenafil (Viagra), tadalafil (Cialis) and vardenafil (Levitra). They work in broadly similar ways, but their onset and duration differ.

Individual responses can vary, and factors such as food, alcohol, other medicines and underlying health conditions can affect how well a PDE5 inhibitor works.

Avanafil may be an appealing option for men who value a relatively rapid onset, while tadalafil may be preferred by some men who want a longer window of opportunity. The best choice depends on individual health factors and treatment goals.

Erectile Dysfunction (ED) Medication Prices

PULSE Clinic offers a comprehensive range of alternative PDE5 inhibitor treatments for erectile dysfunction (ED). To help you evaluate options based on your treatment goals and budget, current pricing for both branded and generic ED medications available at the clinic is detailed below:

For more information about the medication and ordering process, please get in touch with our online pharmacy service at pulseliving@pulse-clinic.com or chat with us on your preferred platform:

Is Avanafil Right for You?

Before starting avanafil, it is worth discussing the following with your doctor:

• Do you want an ED treatment with a relatively rapid onset?
• Have you experienced unwanted side effects with another ED medicine?
• Do you have any heart, liver, or kidney conditions?
• Are you taking medicines that could interact with avanafil?
• Would another PDE5 inhibitor or ED treatment be more appropriate for your needs?

A medical consultation can help determine whether avanafil or another treatment is suitable for you.

What Causes Erectile Dysfunction?

Erectile dysfunction can have many possible causes, and several factors may contribute at the same time.

1. Medical conditions

These may include diabetes, cardiovascular disease, high blood pressure, obesity, multiple sclerosis, Parkinson's disease and Peyronie's disease.

2. Lifestyle factors

Smoking, excessive alcohol consumption, recreational drug use and physical inactivity can contribute to ED.

3. Medications

Certain medicines, including some antidepressants, antihistamines and blood pressure medicines, may contribute to erectile difficulties.

4. Psychological factors

Stress, anxiety, depression and relationship difficulties can affect sexual function and may contribute to ED.

5. Hormonal factors

Hormonal conditions, including clinically diagnosed testosterone deficiency, can sometimes contribute to erectile difficulties.

6. Ageing

The likelihood of ED tends to increase with age, partly because the risk of conditions associated with erectile difficulties also increases. However, ED is not simply an inevitable part of ageing and should be assessed when it occurs.

Because ED is often multifactorial, a proper medical evaluation can help identify potential underlying causes and guide appropriate treatment.

Treatment Options for Erectile Dysfunction

ED treatment is not one-size-fits-all. Depending on the underlying cause and the individual's health, treatment options may include:

1. Oral medicines — PDE5 inhibitors such as sildenafil, tadalafil, avanafil, and vardenafil can improve blood flow to the penis during sexual stimulation.
2. Lifestyle changes — stopping smoking, limiting alcohol, staying physically active and maintaining a healthy weight can support overall cardiovascular and sexual health.
3. Counselling or psychological therapy — this may be helpful when stress, anxiety, or other psychological factors contribute to ED.
4. Treatment for hormonal conditions — men with confirmed hormonal deficiencies may benefit from appropriate hormone treatment under medical supervision.
5. Vacuum erection devices — medical devices that use controlled suction to help produce and maintain an erection.
6. Shockwave therapy — a non-invasive treatment used in some settings for selected men with ED, particularly where a vascular component may be involved. Evidence and suitability should be discussed with a qualified healthcare professional.
7. Surgical treatment — may be considered for selected men when other treatments are unsuccessful or when a specific structural problem is present.

The most appropriate treatment depends on the cause of ED, overall health, medication history, and personal preferences.

Frequently Asked Questions

How fast does avanafil work?

Avanafil may begin to work in around 15–30 minutes in some men, making it one of the PDE5 inhibitors known for a relatively rapid onset. However, individual response varies, and sexual stimulation is still required.

How long does avanafil last?

Avanafil can provide an opportunity for sexual activity for several hours after taking a dose. The duration varies between individuals and does not mean that an erection should last continuously.

Can I take avanafil with alcohol?

Drinking large amounts of alcohol while taking avanafil can increase the risk of dizziness, low blood pressure and other side effects and may make it harder to achieve an erection. Ask your healthcare provider about alcohol consumption based on your individual health and treatment.

Is avanafil safer than Viagra?

Avanafil and sildenafil have similar overall safety considerations, but their side-effect profiles and tolerability can vary between individuals. Neither medication is automatically safer for everyone. Your doctor can help determine which option is more appropriate for you.

Who shouldn't take avanafil?

Avanafil should not be taken with nitrate medicines because the combination can cause a dangerous drop in blood pressure. Men with certain cardiovascular conditions or severe liver or kidney impairment may also need to avoid it or undergo medical assessment before treatment.

Talk to a PULSE Clinic doctor

Avanafil (Spedra/Stendra) is a PDE5 inhibitor that offers a relatively rapid onset and can be an effective treatment option for some men with erectile dysfunction. However, the most appropriate treatment depends on your individual health, the cause of ED, and any other medicines you may be taking.

Book a confidential consultation with the PULSE Clinic medical team to discuss whether avanafil or another ED treatment is right for you.

Contact us at info.bkk@pulse-clinic.com or chat on your preferred platform:

Medical disclaimer: This article is for general educational purposes only and does not replace professional medical advice. Always consult a licensed healthcare provider before starting, stopping, or changing any medication.