Sildenafil 100 mg is an approved treatment for erectile dysfunction, helping men to restore their sexual function.

Sildenafil 100 mg: what is its effect?

Notre équipe éditoriale

Medically reviewed by Notre équipe éditoriale

Written by Anne-Sophie Laignel

Last updated 1/3/2025 - 6 min read

Sildenafil 100 mg is one of the most well-known treatments for erectile dysfunction (ED), a condition that affects millions of men around the world. More than just a medication, it represents an effective solution to help men regain a satisfying sexual life. But how exactly does it work, and how long does its effect last? This article breaks down its mechanism of action, duration of effect, and its implications for users.

The mechanism of action of Sildenafil

Sildenafil, known under the brand name Viagra®, belongs to a class of medications called phosphodiesterase type 5 (PDE5) inhibitors. This drug acts directly on the biological mechanisms that regulate erection.

  1. The biological basis of erection: When a man is sexually stimulated, his body releases nitric oxide (NO) into the tissues of the penis. This molecule activates an enzyme that produces cyclic guanosine monophosphate (cGMP), responsible for the relaxation of smooth muscles and the increase of blood flow in the penis. This process allows for an erection.
  2. The role of PDE5: PDE5 is an enzyme that breaks down cGMP, ending an erection. In some men, excessive PDE5 activity can prevent a sustained erection.
  3. How Sildenafil works: Sildenafil inhibits the action of PDE5, allowing cGMP to remain active for a longer period. This prolongs the relaxation of smooth muscles and promotes sufficient blood flow to maintain an erection.

It is essential to note that Sildenafil does not induce a spontaneous erection. Sexual stimulation is necessary for it to work.

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The stages of effectiveness

  1. Absorption: Sildenafil begins to be absorbed into the bloodstream approximately 30 to 60 minutes after ingestion. To optimize its effect, it is recommended to take it on an empty stomach, as a heavy or fatty meal can delay its absorption.
  2. Maximum effect: The effects of Sildenafil are generally at their peak between 1 and 2 hours after ingestion.
  3. Duration of effect: A 100 mg dose may remain effective for about 4 to 6 hours, although this duration can vary from one individual to another. Some men report some effectiveness up to 8 hours after taking it.

The duration of Sildenafil's effect: influencing factors

The duration of Sildenafil's effect can vary depending on several factors:

  1. Individual metabolism: Each person metabolizes the drug at a different rate. Younger or healthier men may experience longer effects than those with metabolic or liver problems.
  2. Nutrition: A heavy or fatty meal can slow down the absorption of the medication, delaying its effect.
  3. Dose: The standard dose is 50 mg, but Sildenafil 100 mg is prescribed for more severe cases. A higher dose may prolong the effect, but it can also increase the risk of side effects.
  4. General health status: Health issues such as diabetes, heart diseases, or hormonal disorders can affect the effectiveness of Sildenafil.
  5. Interactions with other substances: Excessive consumption of alcohol or the use of certain medications can alter the effects of Sildenafil.

How to safely take Sildenafil 100 mg?

  1. Medical Prescription: Sildenafil must be prescribed by a doctor after a complete evaluation of your health condition.
  2. Respect the dosage: Never exceed the prescribed dose. An overdose can lead to serious complications, such as priapism (prolonged and painful erection).
  3. Follow the instructions: Take the medication about an hour before sexual activity.
  4. Consult in case of side effects: Side effects may include headaches, facial flushing, visual disturbances, or digestive issues. If these symptoms persist, consult your doctor.

The benefits of Sildenafil

  1. Fast and efficient: Its quick action and reasonable duration make it a popular choice.
  2. Established reputation: Millions of men around the world have been successfully using Sildenafil since its introduction in 1998.
  3. Availability: It is widely available in generic forms, making treatment more accessible.

Sildenafil 100 mg is a recognized treatment for erectile dysfunction, offering an effective and temporary solution to improve the quality of sexual life. Thanks to its targeted mechanism of action and its duration of effect of 4 to 6 hours, it allows men to regain their self-confidence. However, its use must be supervised by a health professional. By consulting a doctor, especially through online platforms like kano.care, you can access a quick medical evaluation and obtain a suitable treatment, safely and discreetly.

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Sildenafil and tadalafil work by increasing blood flow to the penis, thus facilitating an erection, but their use requires a prescription to avoid side effects.

What medication should be taken to achieve an erection?

Erectile dysfunction affects many men at different times in their lives. Whether related to stress, fatigue, medical or psychological causes, it can have a significant impact on self-confidence and quality of life. Faced with this issue, many seek medicinal solutions to achieve a satisfactory erection. However, it is essential to remember that only treatments prescribed by a doctor after a consultation are acceptable. Self-medication or purchasing drugs from unapproved sites can be dangerous to health.

Medicinal treatments such as Viagra and Cialis, available through Kano.care, offer an immediate and scientifically validated solution, unlike dietary supplements which remain unproven.

Medication vs Dietary Supplement for better erections.

In a market flooded with solutions for erectile dysfunction, it is essential to distinguish truly effective treatments from products that are at best supplementary, at worst ineffective. The difference between a medication and a dietary supplement is crucial, as it directly affects the health and effectiveness of the proposed solutions. At Kano, we have chosen to offer our patients access to approved medicinal treatments prescribed by health professionals, thus ensuring optimal and effective management of erectile dysfunction.

Viagra is an effective medication for erectile dysfunction, but its use must be supervised by a healthcare professional. Indeed, improper use can lead to serious side effects and dangerous interactions.

How to buy Viagra? (or Sildenafil)

Viagra is a medication used to treat erectile dysfunction, but unlike other products that are freely available, it cannot be purchased directly from a pharmacy or online without a prescription. Its acquisition is based on a medical prescription, as its use must be regulated to ensure its effectiveness and to avoid health risks. Discover in this article why Viagra requires a prescription, how a medical consultation on Kano.care proceeds, and why one should be wary of products sold illegally online.

Kano.care offers a responsible approach with online medical consultations and authentic treatments.

Why can't you buy Cialis online without a consultation and a medical prescription?

Purchasing Cialis online without a medical prescription exposes you to major dangers, such as counterfeit drugs, illegal websites, and the lack of medical follow-up. This treatment for erectile dysfunction requires a prior medical evaluation to ensure its effectiveness and to avoid risks associated with contraindications or improper dosing. Kano.care offers a legal and secure alternative through online consultations, reliable prescriptions, and fast and discreet delivery. By choosing Kano.care, you benefit from comprehensive care that respects medical practices and focuses on your intimate health.

Les sites qui proposent du Viagra sans ordonnance sont souvent illégaux et insécurisés, mettant en danger la santé et les données personnelles des utilisateurs.

Pourquoi vous ne pouvez pas acheter du Viagra en ligne sans consultation et prescription médicale?

Le Viagra, reconnu mondialement pour son efficacité dans le traitement de la dysfonction érectile, ne doit pas être considéré comme un médicament anodin. Son acquisition requiert une approche responsable et encadrée par des professionnels de santé. Si vous vous interrogez sur l’impossibilité d’acheter légalement du Viagra en ligne sans consultation médicale, sachez que cela repose sur des impératifs de sécurité, de légalité et de santé publique. Cet article met en lumière les dangers de l’achat non encadré de Viagra et présente l’approche rigoureuse de Kano.care, qui offre un accès légal, sécurisé et médicalement supervisé à ce traitement.

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Treatments for erectile dysfunction, such as Viagra®, Cialis®, Levitra®, and Spedra®, carry potential risks that vary depending on the patient's health condition. They may cause serious side effects, including cardiovascular issues, dangerous drug interactions, or prolonged erections (priapism), which require immediate medical attention. It is essential never to take these medications without the advice of a qualified healthcare professional. A thorough medical consultation is necessary to determine the appropriate treatment for each individual, taking into account medical history and contraindications. Additionally, it is crucial to ensure that the medications are obtained from reliable and authorized sources. Medications purchased outside legal channels or without a prescription may be counterfeit, ineffective, or even harmful to health. Always consult a doctor before using these treatments and obtain medications from a licensed pharmacy.

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