この記事の概要
Vardenafil is a PDE5 (phosphodiesterase 5) inhibitor used to treat Erectile Dysfunction (ED), which can be caused by a variety of factors including age, lifestyle, and stress, It affects many men around the world. Vardenafil is one of the most effective ED medications and is recognized for its rapid action and safety. Here we will discuss vardenafil's mechanism of action, onset and duration of effect, dosage, side effects, and contraindications in detail.
Vardenafil is a PDE5 (phosphodiesterase 5) inhibitor used to treat Erectile Dysfunction (ED), which can be caused by a variety of factors including age, lifestyle, and stress, It affects many men around the world. Vardenafil is one of the most effective ED medications and is recognized for its rapid action and safety. Here we will discuss vardenafil’s mechanism of action, onset and duration of effect, dosage, side effects, and contraindications in detail.
1. Treatment of Erectile Dysfunction (ED)
- Action Sequence.
- Vardenafil promotes erections by dilating blood vessels in the penis and increasing blood flow during sexual stimulation. Specifically, it inhibits the PDE5 enzyme and prevents the breakdown of a substance called cyclic GMP (cGMP), which causes the smooth muscles of blood vessels to relax and increases blood flow to the penis. This allows for a natural erection.
- Onset of effect: (1)
- Vardenafil begins to take effect approximately 30 minutes after it is taken. The onset of effect is relatively fast, and it is considered to be one of the fastest-acting ED drugs.
- Duration: 1.5 hours
- The duration of effect is approximately 4-5 hours. During this time, sexual stimulation will help promote erection. Because of its relatively short duration, planned use is recommended.
2. Methods of administration
- General Dosage:.
- It is taken 30 minutes to 1 hour before sexual activity. The usual dosage is 10 mg or 20 mg, but the dosage may be adjusted under the guidance of the physician, depending on the patient’s response and side effects.
- Vardenafil is sensitive to the effects of food and may delay the onset of effects, especially if taken with a meal that is high in fat. It should be taken separately from meals or with a light meal.
Characteristics of Effectiveness
- High selectivity: Highly selective
- Vardenafil is highly selective for PDE5 and has a low effect on other PDE enzymes. Therefore, the risk of side effects is relatively low.
- Low cardiovascular impact:.
- Although it is believed to have less cardiovascular impact than other PDE5 inhibitors, it is important that patients with heart disease or blood pressure problems consult a physician before use.
Side effects4. Side effects
- Common side effects:.
- headache
- Facial flushing (hot flashes)
- nasal congestion
- indigestion
- dizziness
- Rare side effects:.
- Persistent erections (priapism): painful erections that last more than 4 hours and require urgent treatment.
- Visual abnormalities: vision may appear bluish, but this is temporary.
- Hearing impairment: Sudden loss of hearing and tinnitus have been reported, but are very rare.
5. Contraindications and Precautions
- Concomitant use with nitrates:.
- Concomitant use with vardenafil is contraindicated if nitrates are being used. Concomitant use may cause severe hypotension.
- Patients with cardiovascular disease:.
- Patients with heart disease or low blood pressure should always consult with a physician for proper evaluation prior to use.
Summary
Vardenafil is an effective medication for erectile dysfunction (ED) and is characterized by rapid onset of effects. However, be sure to follow proper usage and consult with your physician when taking it, especially if you have a pre-existing medical condition or are taking other medications. It is important to understand the side effects and contraindications before using vardenafil safely. Used properly, vardenafil can be of great help in the treatment of ED.
