Premature Ejaculation Causes, Symptoms And Treatment By Dr. Sujoy Dasgupta [66b3bf]
2025-07-30
Post Time: 2025-07-30
**Erectile dysfunction (ED)**, a condition affecting millions of men worldwide, can significantly impact self-esteem and relationships. Fortunately, advancements in medical science have introduced various treatments, and one noteworthy option is **avanafil**, marketed under the brand name **Stendra**. Unlike other ED medications, avanafil is known for its rapid onset of action, making it a practical choice for men seeking spontaneity in their intimate moments. This article will delve into the details of **avanafil**, its mechanism of action, effectiveness, potential side effects, and comparisons with other ED drugs. ## What is Avanafil (Stendra)? **Avanafil** is a phosphodiesterase type 5 (PDE5) inhibitor, a class of drugs designed to treat **erectile dysfunction**. Approved by the FDA in 2012, Stendra works by increasing blood flow to the penis, enabling a man to achieve and sustain an erection suitable for sexual activity. What distinguishes avanafil from other PDE5 inhibitors like sildenafil (Viagra), tadalafil (Cialis), and vardenafil (Levitra) is its fast-acting nature and, to some extent, its side effect profile. | Feature | Avanafil (Stendra) | Sildenafil (Viagra) | Tadalafil (Cialis) | Vardenafil (Levitra) | |-----------------|--------------------|---------------------|-------------------|--------------------| | Onset of Action | 15-30 minutes | 30-60 minutes | 30-60 minutes | 30-60 minutes | | Duration of Effect | 6 hours | 4-5 hours | Up to 36 hours | 4-5 hours | | Food Interaction| Minimal | Can be delayed by high-fat meals | Minimal | Can be delayed by high-fat meals | | Dosage | 50mg, 100mg, 200mg | 25mg, 50mg, 100mg | 2.5mg, 5mg, 10mg, 20mg | 2.5mg, 5mg, 10mg, 20mg| ## How Does Avanafil Work? The mechanism of action of **avanafil** is similar to other PDE5 inhibitors. During sexual stimulation, nitric oxide (NO) is released in the corpus cavernosum, the erectile tissue of the penis. NO activates an enzyme that produces cyclic guanosine monophosphate (cGMP). cGMP relaxes the smooth muscle in the blood vessels of the penis, allowing for increased blood flow. This increased blood flow is what causes an erection. **PDE5**, on the other hand, is an enzyme that breaks down cGMP. Avanafil inhibits PDE5, which means cGMP levels remain elevated, prolonging the relaxation of the smooth muscle and facilitating a sustained erection. Here's a simplified view of the biochemical process: 1. **Sexual Stimulation**: Triggers the release of nitric oxide (NO). 2. **NO Activation**: Activates an enzyme to produce cGMP. 3. **cGMP Accumulation**: cGMP relaxes blood vessels in the penis, increasing blood flow. 4. **PDE5 Inhibition**: Avanafil inhibits PDE5, preventing cGMP breakdown. 5. **Sustained Erection**: High cGMP levels ensure continued vasodilation, supporting the erection. ### Clinical Studies Supporting Avanafil's Efficacy Numerous clinical trials have demonstrated the efficacy of avanafil in treating erectile dysfunction. A study published in the journal *Urology* found that avanafil improved erectile function in a significantly higher proportion of men compared to a placebo. Furthermore, the medication was shown to be effective across different age groups and severities of ED. The rapid onset of avanafil is attributed to its fast absorption, allowing some men to achieve an erection in as little as 15 minutes. | Study | Year | Subjects | Outcome | |--------------------|------|--------------|--------------------------------------------------------------| | *Urology* | 2012 | Several hundred men | Improved erectile function, rapid onset, well-tolerated | | *J Sex Med* | 2013 | Men with ED | Effectiveness across various ED severities and age groups | ## Advantages of Avanafil Over Other ED Medications The primary advantage of **avanafil** is its **rapid onset of action**. This can be particularly appealing to men who prefer a more spontaneous approach to sexual activity, unlike medications that need to be taken an hour or more in advance. In addition, the relatively short duration of its effects, typically around 6 hours, can also be a benefit for some users. Other advantages include: * **Minimized Food Interaction**: Unlike sildenafil and vardenafil, the effectiveness of avanafil is not significantly affected by food, even high-fat meals. This provides greater convenience and flexibility in timing. * **Lower Incidence of Side Effects**: Compared to other ED drugs, some users report a lower incidence of common side effects such as headaches, flushing, and nasal congestion with avanafil. However, this can vary from individual to individual. * **Flexibility in Dosage**: Available in three different dosages (50 mg, 100 mg, and 200 mg), avanafil provides flexibility for men to adjust their intake as prescribed by their physician based on their needs and response. ## Dosage and Administration of Avanafil **Avanafil** is available in three dosage strengths: **50 mg, 100 mg, and 200 mg**. The recommended starting dose is generally **100 mg**, taken as needed approximately **15 to 30 minutes** before sexual activity. The dose may be adjusted based on individual response and tolerability, ranging from 50 mg to 200 mg. It is crucial to take avanafil only as directed by a doctor and to adhere to recommended dosing guidelines. Taking more than the prescribed dose can increase the risk of side effects. **Key Points on Dosage and Administration:** - **Dosage Form:** Oral tablet. - **Time Before Activity:** 15-30 minutes before intercourse. - **Starting Dose:** Typically 100mg. - **Adjustments:** Based on efficacy and side effect. - **Frequency:** No more than once in 24 hours. ## Potential Side Effects and Precautions Like all medications, **avanafil** can cause side effects, though not everyone experiences them. Common side effects associated with avanafil include: * Headache * Flushing (redness of the skin) * Nasal congestion * Dizziness Less common but more serious side effects could include: * Vision changes * Hearing loss or ringing in the ears * Priapism (prolonged, painful erection lasting longer than four hours) * Chest pain or heart problems It is critical to consult a healthcare provider if you experience any severe or persistent side effects. **Avanafil** should be used with caution in individuals with certain pre-existing conditions such as: * Cardiovascular disease * Liver or kidney problems * Low blood pressure * A history of prolonged erections Men who are taking nitrates or other medications should also inform their doctor since there could be potentially harmful drug interactions with avanafil. ## Avanafil vs. Other PDE5 Inhibitors While all PDE5 inhibitors work on a similar principle, their characteristics vary. Here's a brief comparison: **Avanafil (Stendra)**: Fastest acting, relatively lower incidence of some side effects, shorter duration of effect (around 6 hours), minimal food interaction. **Sildenafil (Viagra)**: Slower onset (30-60 minutes), affected by high-fat meals, common side effects, duration of effect around 4-5 hours. **Tadalafil (Cialis)**: Slower onset (30-60 minutes), longer duration of action (up to 36 hours), minimal food interaction, some common side effects. **Vardenafil (Levitra)**: Slower onset (30-60 minutes), affected by high-fat meals, common side effects, duration of effect around 4-5 hours. The choice between these medications should be made in consultation with a doctor who can assess individual needs and medical history. | Comparison Point| Avanafil | Sildenafil | Tadalafil | Vardenafil | |---------------|------------|-------------|-----------|-----------| | Onset of Action| Fastest | Slow | Slow | Slow | | Duration | Short | Moderate | Long | Moderate | | Food Impact | Minimal | Significant| Minimal | Significant| ## Conclusion: Is Avanafil the Right Choice for You? **Avanafil (Stendra)** stands out as a quick-acting and effective solution for **erectile dysfunction**. Its fast onset of action, minimal food interaction, and comparatively lower side effect profile make it an attractive option for men seeking spontaneity in their sexual lives. However, like all medications, it is not without potential side effects, and it's essential to discuss its use with a healthcare provider. By considering the specific characteristics of **avanafil** and comparing it with other ED treatments, you can make an informed decision that best suits your individual health needs and preferences. Premature ejaculation causes, symptoms and treatment male labido enhancements by Dr. Sujoy Dasgupta Our Other Health viagra on empty or full stomach Related Channels Health Inside | English - Health Inside | বাংলা - Health Inside | हिंदी - For More Healthy Information in Bengali Please visit Follow our Facebook Page facebook.com/healthinside.in for any query mail us @ [email protected] you can also call @ +91 9681578800 for olive oil and lemon juice better than viagra and cialis further information