Medically reviewed by Notre équipe éditoriale
Written by Anne-Sophie Laignel
Last updated 1/4/2025 - 6 min read
Tadalafil 20 mg is a commonly used treatment for erectile dysfunction (ED) and certain symptoms related to benign prostatic hyperplasia (BPH). It belongs to the class of phosphodiesterase type 5 (PDE5) inhibitors, medications that act on vascular mechanisms to promote erection in the presence of sexual stimulation. This article provides a detailed examination of its mode of action, distinctive features, and duration of effectiveness.
Tadalafil works by inhibiting the PDE5 enzyme, a molecule that normally degrades cGMP, a crucial chemical messenger for the relaxation of the smooth muscles of the blood vessels. During sexual arousal, the body releases nitric oxide (NO), which triggers the production of cGMP. This in turn promotes increased blood flow into the penile corpora cavernosa, leading to an erection.
By blocking PDE5, Tadalafil allows cGMP to remain active for a longer period, which prolongs and strengthens the erection. However, it is essential to note that this medication does not cause an automatic erection: sexual stimulation is still required to trigger the effect.
Tadalafil 20 mg is intended for single use, usually 30 minutes before planned sexual activity. It can be taken with or without food, making it a convenient medication for most users. For daily use, lower doses (2.5 mg or 5 mg) may be prescribed, providing more spontaneity.
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One of the main characteristics of Tadalafil is its long duration of action. Unlike other PDE5 inhibitors, such as Sildenafil (Viagra), which last between 4 and 6 hours, Tadalafil can remain active for up to 36 hours. This exceptional duration has earned it the nickname 'weekend pill', as it allows for spontaneous sexual activity over an extended period after taking it.
However, the exact duration can vary based on several individual factors, such as age, overall health, or the concurrent use of other medications. Therefore, it is important to follow medical recommendations to optimize its effectiveness.
Tadalafil is well tolerated by the majority of users, with often moderate side effects such as headaches, hot flashes, muscle pain, or indigestion. It is contraindicated in individuals taking nitrates (for heart conditions), as this combination can cause a dangerous drop in blood pressure.
Before starting a treatment, a medical consultation is essential to assess any potential contraindications or drug interactions.
Tadalafil 20 mg is an effective and long-lasting therapeutic option for erectile dysfunction. Its unique mode of action and extended duration of effect make it appealing to many users. However, it should be used under the supervision of a healthcare professional to ensure optimal safety and results tailored to individual needs.
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REAL IMPACT
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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