How to choose the dose of Avanafil (Stendra)?

Erectile dysfunction (ED) is a common problem among men of all ages, which can significantly affect the quality of life and self-esteem. In search of an effective solution, many men turn to drugs designed to treat ED. Among them, Avanafil occupies a special place – a modern and effective remedy, characterized by rapid and relatively low risk of side effects.

However, to achieve maximum effectiveness and minimize risks, it is extremely important to choose the correct dosage of Avanafil. This process is individual and depends on many factors, including general health, age, the presence of concomitant diseases and other medications taken.

This comprehensive guide is designed to provide you with detailed information about Avanafil and help you understand the nuances of choosing the optimal dose. We will cover the mechanism of action of the drug, indications and contraindications for its use, factors affecting dosage, recommendations for use, possible side effects and important warnings. Our goal is to provide you with complete and reliable information so that you can make an informed decision about using Avanafil and achieve the desired results in the treatment of erectile dysfunction.

Avanafil: What is it and how does it work?

Avanafil belongs to a group of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. These drugs are designed specifically to treat erectile dysfunction by helping men achieve and maintain an erection strong enough for satisfactory sexual intercourse.

Mechanism of action of Avanafil

An erection is a complex physiological process involving the interaction of the nervous system, blood vessels, and hormones. During sexual arousal, nerve impulses stimulate the release of nitric oxide (NO) in the cavernous bodies of the penis. Nitric oxide, in turn, activates the enzyme guanylate cyclase, which leads to an increase in the level of cyclic guanosine monophosphate (cGMP).

cGMP plays a key role in relaxing the smooth muscles of the corpora cavernosa and the arterioles that supply blood to the penis. Relaxation of the smooth muscles allows the corpora cavernosa to fill with blood, resulting in an erection.

The PDE5 enzyme is responsible for breaking down cGMP. Avanafil, as a PDE5 inhibitor, blocks the action of this enzyme, thereby preventing the destruction of cGMP. As a result, the level of cGMP in the cavernous bodies remains elevated, which promotes longer-lasting relaxation of smooth muscles and improved blood flow in the penis, ensuring a stable erection.

It is important to note that Avanafil does not cause an erection spontaneously. Sexual stimulation is required for the drug to begin to work. Avanafil only enhances the natural processes that occur in the body during sexual arousal, helping to achieve and maintain an erection in response to stimulation.

Differences between Avanafil and other erectile dysfunction drugs

There are several erectile dysfunction drugs on the market that belong to the group of PDE5 inhibitors, such as Sildenafil (Viagra), Tadalafil (Cialis) and Vardenafil (Levitra). Avanafil differs from them in a number of characteristics that make it an attractive choice for many men.

One of the key differences of Avanafil is its rapid action . Avanafil starts to act within 15-30 minutes after taking it, which is much faster than most other drugs in this group. This allows men to take the drug immediately before the expected sexual intercourse, providing greater spontaneity and convenience.

Another important advantage of Avanafil is its relatively low risk of side effects . Due to its selectivity for PDE5, Avanafil has less effect on other types of phosphodiesterases, which reduces the likelihood of side effects such as headaches, facial flushing, nasal congestion, and visual disturbances that are often observed when taking other PDE5 inhibitors.

Additionally, Avanafil has a shorter half-life than Tadalafil, meaning that the drug is eliminated from the body sooner, which may be an advantage for men who want to minimize the duration of the drug’s action and potential side effects.

However, it is important to remember that each organism is individual, and the effectiveness and tolerability of various drugs may differ. The choice of a drug for the treatment of erectile dysfunction should be made individually after consultation with a doctor, taking into account the individual needs and characteristics of the patient.

Who is Avanafil indicated for?

Avanafil is indicated for the treatment of erectile dysfunction in adult men. This means that the drug is intended for men who have difficulty achieving or maintaining an erection sufficient for satisfactory sexual intercourse.

Indications for use of Avanafil

The primary indication for Avanafil is erectile dysfunction (ED) , also known as impotence. ED can be caused by a variety of factors, including:

Psychological factors: stress, anxiety, depression, relationship problems.
Organic factors: cardiovascular disease, diabetes, hypertension, high cholesterol, hormonal disorders, neurological diseases, spinal cord injuries, pelvic surgery, Peyronie’s disease.
Medicinal factors: taking certain medications, such as antidepressants, antihypertensive drugs, antipsychotics.
Lifestyle factors: smoking, alcohol abuse, drugs, sedentary lifestyle, obesity.

Avanafil can be effective in treating ED caused by various factors. The drug helps improve erectile function regardless of the cause of ED.

Contraindications to the use of Avanafil

Although Avanafil is a relatively safe drug, there are certain contraindications to its use. Before starting to take Avanafil, it is important to familiarize yourself with these contraindications and inform your doctor about any existing diseases or conditions.

Contraindications to the use of Avanafil include:

Hypersensitivity to Avanafil or any other component of the drug.
Taking nitrates or nitric oxide donors. Avanafil may enhance the hypotensive effect of nitrates, which can lead to a dangerous drop in blood pressure. Nitrates are often used to treat angina (chest pain).
Severe cardiovascular diseases such as unstable angina, heart failure III-IV functional class according to NYHA, myocardial infarction or stroke within the last 6 months, uncontrolled arterial hypertension or hypotension, severe cardiac arrhythmias. Sexual activity puts additional strain on the heart, so men with severe cardiovascular diseases should be careful when taking drugs for the treatment of ED.
Severe liver or kidney dysfunction. Avanafil is metabolized in the liver and excreted by the kidneys, so patients with severe liver or kidney dysfunction may experience accumulation of the drug in the body and an increased risk of side effects.
Inherited degenerative diseases of the retina, such as retinitis pigmentosa. The safety and efficacy of Avanafil in patients with these diseases have not been established.
Concomitant use with strong CYP3A4 inhibitors such as ketoconazole, itraconazole, ritonavir, saquinavir, clarithromycin, telithromycin, nefazodone. These drugs can significantly increase the blood level of avanafil, which may lead to an increased risk of side effects.

Before starting to take Avanafil, be sure to consult with your doctor to rule out any contraindications and discuss the possible risks and benefits of treatment.

How to choose the correct dose of Avanafil?

Selecting the dose of Avanafil is an individual process that depends on many factors. It is important to remember that self-medication can be dangerous to your health. The optimal dose of Avanafil should be selected by a doctor, taking into account your individual characteristics and health condition.

Recommended starting doses of Avanafil

The usual starting dose of Avanafil is 100 mg . This dose should be taken approximately 15 to 30 minutes before planned sexual activity. In some cases, your doctor may recommend starting with a lower dose of 50 mg , especially for older patients, patients with mild to moderate liver or kidney impairment, or patients taking certain medications.

Depending on the effectiveness and tolerability of the drug, the dose may be increased to 200 mg or decreased to 50 mg . The maximum recommended daily dose of Avanafil is 200 mg . It is not recommended to take Avanafil more than once a day.

Factors Affecting Avanafil Dose Selection

Several factors may influence the choice of the optimal dose of Avanafil. Your doctor will take these factors into account when prescribing the drug and selecting the dosage.

Patient age: Elderly patients may have decreased liver and kidney function, which may affect the metabolism and elimination of Avanafil. Therefore, for patients over 65 years of age, it is generally recommended to start with a lower dose of 50 mg.
Patient’s health condition: The presence of concomitant diseases, especially cardiovascular diseases, liver or kidney dysfunction may affect the choice of Avanafil dosage. For patients with certain diseases, dosage adjustments or even contraindications to the use of the drug may be required.
Associated diseases Some diseases, such as diabetes, hypertension, high cholesterol, may affect the effectiveness of Avanafil. The doctor will take into account the presence of these diseases when selecting the dose and assessing the effectiveness of treatment.
Taking other medicines: Avanafil may interact with other medicines that may affect its effectiveness and safety. It is especially important to consider taking strong CYP3A4 inhibitors, nitrates, alpha-blockers and other drugs that affect blood pressure. Tell your doctor about all the medicines you are taking, including prescription drugs, over-the-counter medicines, vitamins and herbal supplements.

Avanafil Dose Adjustment

During treatment, the dose of Avanafil may be adjusted by the doctor depending on the individual response to the drug and tolerability.

Dose increase: If the initial dose of 100 mg is not effective enough, the doctor may recommend increasing the dose to 200 mg. The dose increase should be done gradually under the supervision of the doctor with an assessment of the effectiveness and tolerability of the drug.
If you experience side effects while taking Avanafil at a dose of 100 mg or 200 mg , your doctor may recommend reducing the dose to 50 mg. Reducing the dose may help reduce the severity of side effects while maintaining sufficient effectiveness of the drug.

It is important to remember that self-adjustment of the Avanafil dose without consulting your doctor is not recommended. Any changes in the dosage should be agreed upon with your doctor, who will assess your individual situation and make an informed decision.

How to take Avanafil?

Taking Avanafil correctly is important to achieve maximum effectiveness and minimize the risk of side effects. Follow your doctor’s recommendations and the instructions for the drug to ensure safe and effective treatment.

Recommendations for taking Avanafil

Avanafil is taken orally , the tablet should be swallowed whole with plenty of water.
The drug should be taken approximately 15-30 minutes before planned sexual activity . Avanafil starts to work quickly, so it should not be taken in advance.
The recommended starting dose is 100 mg . The dose may be adjusted by your doctor depending on the effectiveness and tolerability.
The maximum recommended daily dose is 200 mg . Do not take Avanafil more than once a day.
Do not exceed the recommended dose of Avanafil. Overdose may increase the risk of side effects.
If you miss a dose of Avanafil, do not take a double dose to make up for the missed one. Take your next dose at the usual time.

Avanafil interactions with food and alcohol

Avanafil is not dependent on food intake . The drug can be taken both on an empty stomach and after meals. However, eating fatty foods can slow down the absorption of Avanafil and slightly delay the onset of its action.

Alcohol consumption should be limited while taking Avanafil. Alcohol may worsen some of the side effects of Avanafil, such as dizziness and low blood pressure. Excessive alcohol consumption may also reduce the effectiveness of the drug.

Possible side effects of Avanafil

Like any medication, Avanafil can cause side effects. In most cases, side effects are mild to moderate and go away on their own. However, in some cases, serious side effects may occur that require medical attention.

The most common side effects

The most common side effects of Avanafil include:

headache
Facial flushing (hot flashes)
Nasal congestion
Dizziness
Digestive disorders (dyspepsia)
Back pain
Inflammation of the throat (nasopharyngitis)

These side effects are usually temporary and do not require specific treatment. They usually disappear within a few hours after taking the drug.

Serious side effects and when to call a doctor

In rare cases, Avanafil may cause serious side effects that require immediate medical attention. If you experience any of the following symptoms, contact your doctor immediately:

A prolonged and painful erection (priapism) lasts more than 4 hours. Priapism is a serious condition that can lead to damage to the penile tissue and irreversible impotence.
Sudden loss of vision in one or both eyes (non-arteritic anterior ischemic optic neuropathy – NAIO). NAIO is a rare but serious condition that can lead to permanent blindness.
Sudden loss or deterioration of hearing, ringing in the ears (tinnitus).
Symptoms of an allergic reaction such as rash, itching, swelling of the face, lips, tongue or throat, difficulty breathing.
Chest pain, irregular heartbeat, shortness of breath, dizziness, nausea during sexual activity.

Although serious side effects of Avanafil are rare, it is important to be aware of them and seek immediate medical attention if they occur.

Avanafil Overdose

Overdose of Avanafil is unlikely if the recommended dose is followed. However, accidental or intentional overdose may cause overdose symptoms.

Symptoms of overdose

Symptoms of an Avanafil overdose may include:

Increased side effects such as headaches, facial flushing, nasal congestion, dizziness, indigestion, back pain.
Severe decrease in blood pressure (hypotension).
Rapid heartbeat (tachycardia).
Chest pain.
Changes in vision.

What to do in case of overdose

In case of overdose of Avanafil, seek immediate medical attention. There is no specific antidote to Avanafil. Treatment of overdose is usually symptomatic and supportive, aimed at relieving symptoms and maintaining vital body functions.

Important caveats regarding taking Avanafil

Before you start taking Avanafil, it is important to read the important warnings and precautions to ensure safe and effective treatment.

Interaction with other drugs

Avanafil may interact with other medications, which may affect its effectiveness and safety. It is especially important to consider interactions with the following groups of drugs:

Nitrates and nitric oxide donors: Concomitant use of Avanafil with nitrates or nitric oxide donors is strictly contraindicated , as this may lead to a dangerous decrease in blood pressure, which can be fatal.
Strong CYP3A4 inhibitors (ketoconazole, itraconazole, ritonavir, saquinavir, clarithromycin, telithromycin, nefazodone): Co-administration of these drugs is contraindicated as they may significantly increase Avanafil blood levels, increasing the risk of side effects.
Moderate CYP3A4 inhibitors (erythromycin, amprenavir, aprepitant, diltiazem, fluconazole, fosamprenavir, grapefruit juice): Concomitant use with these drugs may increase Avanafil blood levels. A dose reduction of Avanafil to 50 mg may be required.
Alpha blockers (doxazosin, tamsulosin, terazosin, alfuzosin): Concomitant use with alpha blockers may result in a decrease in blood pressure. Caution should be exercised when using them concurrently and treatment with Avanafil should be started at a lower dose of 50 mg.
Other erectile dysfunction medications: It is not recommended to take Avanafil with other PDE5 inhibitors or other erectile dysfunction medications because this may increase the risk of side effects.
Antihypertensive agents Avanafil may enhance the hypotensive effect of antihypertensive agents. Caution should be exercised when used concomitantly and blood pressure should be monitored.

Tell your doctor about all medications you take, including prescription drugs, over-the-counter drugs, vitamins, and herbal supplements, so your doctor can evaluate possible interactions and design a safe and effective treatment plan.

Impact on the ability to drive a car and other mechanisms

Avanafil may cause dizziness and blurred vision in some patients. Therefore, you should be careful when driving a car or operating other machinery, especially at the beginning of treatment and after increasing the dose. If you experience dizziness or blurred vision, refrain from driving and performing potentially hazardous activities until these symptoms disappear.

Where to buy Avanafil and how to distinguish the original drug from a fake?

Avanafil is a prescription drug, so it can only be purchased from a pharmacy with a doctor’s prescription . Do not buy Avanafil from unlicensed places or through untrustworthy websites, as this may be dangerous to your health. You may buy a counterfeit drug that does not contain the active substance or contains harmful impurities.

Signs of the original drug

To distinguish the original Avanafil from a fake, pay attention to the following signs:

Packaging: The original drug has high-quality packaging with a clear seal, without errors and inaccuracies. The packaging must contain the name of the drug, dosage, batch number, expiration date, name and logo of the manufacturer, information on storage conditions and method of application.
Blister: Avanafil tablets are usually packed in foil blisters. The blister must be intact, without damage. Each cell of the blister must be clearly separated from the others.
Tablets: Original Avanafil tablets have a specific appearance, shape and color, which corresponds to the manufacturer’s description. The tablets may be marked with the dosage and the name of the drug.
Quality Certificate: When purchasing a drug at a pharmacy, you can ask the pharmacist to provide a quality certificate for the drug. The quality certificate confirms that the drug has passed quality control and meets established standards.
Price: The original Avanafil cannot be too cheap. Too low a price may be a sign of a fake. Compare prices in different pharmacies to get an idea of the average market price of the drug.

If you have any doubts about the originality of the drug, it is better to refrain from purchasing it and contact another pharmacy or consult a doctor.

Alternative Treatments for Erectile Dysfunction

Avanafil is an effective drug for the treatment of erectile dysfunction, but there are other treatments that may be considered depending on the individual needs and preferences of the patient.

Other drugs for the treatment of erectile dysfunction

In addition to Avanafil, there are other PDE5 inhibitors on the market, such as:

Sildenafil (Viagra): The first drug from the group of PDE5 inhibitors, well-studied and effective. Begins to act 30-60 minutes after administration.
Tadalafil (Cialis): It has a long-lasting effect (up to 36 hours), which allows you to take the drug in advance and not be tied to the time of sexual intercourse.
Vardenafil (Levitra): Similar to Sildenafil, but may have a slightly lower risk of some side effects.

The choice of a drug from the group of PDE5 inhibitors depends on the individual characteristics of the patient, his preferences and the doctor’s recommendations.

Non-drug treatments for erectile dysfunction

In some cases, erectile dysfunction can be treated with non-drug treatments, especially if ED is caused by psychological or lifestyle factors. Non-drug treatments may include:

Psychotherapy: May be effective in treating ED caused by psychological factors such as stress, anxiety, depression, relationship problems.
Lifestyle changes: Stopping smoking, limiting alcohol consumption, eating a healthy diet, exercising regularly, losing weight, and controlling blood sugar and blood pressure can all have a positive effect on erectile function.
Vacuum erectors: Mechanical devices that create a vacuum around the penis, promoting blood flow and an erection.
Penile injections: Administration of medications directly into the corpora cavernosa of the penis to stimulate an erection.
Surgical treatment (penile prosthesis): Considered in cases of severe ED when other treatments are not effective.

The choice of treatment method for erectile dysfunction should be made individually after consultation with a doctor, taking into account the cause of ED, the individual characteristics of the patient and its advantages.

Conclusion

Selecting the dose of Avanafil is an important step in achieving optimal results in the treatment of erectile dysfunction. The optimal dose is individual and depends on many factors, including age, health condition, concomitant diseases and taking other medications. The initial dose is usually 100 mg, but can be adjusted by the doctor depending on the effectiveness and tolerability of the drug.

Avanafil is an effective and safe drug for the treatment of erectile dysfunction, characterized by rapid action and a relatively low risk of side effects. However, it is important to remember about possible contraindications and side effects, as well as interactions with other drugs.

Before you start taking Avanafil, be sure to consult your doctor. The doctor will assess your health, rule out contraindications, select the optimal dose and provide recommendations for taking the drug. Self-medication can be dangerous to your health.

Remember that erectile dysfunction is a common problem that can be treated. Seeing a doctor and using the right approach to treatment will help you regain your quality of life and self-confidence.