Introduction to Fildena 100

Fildena 100 is a widely used medication for treating erectile dysfunction (ED) in men. Produced by Fortune Healthcare, it contains sildenafil citrate, the same active ingredient as Viagra. Sildenafil citrate works by enhancing blood flow to the penis, facilitating the achievement and maintenance of an erection.

The Mechanisms Behind Fildena 100

  1. Role of Sildenafil Citrate
    • Sildenafil citrate is a phosphodiesterase type 5 (PDE5) inhibitor.
    • It specifically targets the PDE5 enzyme found in the smooth muscle cells of the blood vessels supplying the penis.
  2. Inhibition of PDE5 Enzyme
    • PDE5 is responsible for breaking down cyclic guanosine monophosphate (cGMP), a molecule that regulates blood flow in the penis.
    • By inhibiting PDE5, sildenafil citrate prevents the breakdown of cGMP, thereby increasing its levels.
  3. Increase in cGMP Levels
    • During sexual arousal, nitric oxide (NO) is released in the erectile tissue of the penis.
    • NO activates the enzyme guanylate cyclase, leading to an increase in cGMP levels.
    • Elevated cGMP levels cause relaxation of the smooth muscle cells in the blood vessels of the penis, allowing them to dilate and increase blood flow.
  4. Enhanced Blood Flow
    • The relaxation and dilation of blood vessels increase blood flow to the corpora cavernosa, the spongy erectile tissues in the penis.
    • Increased blood flow results in the engorgement and expansion of these tissues, leading to an erection.
  5. Sustaining the Erection
    • Higher levels of cGMP help maintain the erection by keeping the blood vessels dilated and ensuring a steady flow of blood to the penis.
    • The erection subsides naturally after sexual activity as cGMP is eventually broken down by PDE5 once sexual stimulation ends.

Benefits of Understanding Fildena 100’s Mechanisms

  1. Targeted Action
    • Knowing that Fildena 100 specifically targets the PDE5 enzyme helps in understanding its effectiveness in treating ED.
    • The targeted action ensures that the medication works precisely where needed without affecting other parts of the body.
  2. Quick Onset and Prolonged Duration
    • Fildena 100 typically starts working within 30 to 60 minutes of ingestion, making it convenient for spontaneous sexual activity.
    • Its effects can last up to 4 hours, providing a suitable window for intimacy without the need for exact timing.
  3. Improved Sexual Performance
    • By facilitating stronger and longer-lasting erections, Fildena 100 enhances sexual performance and satisfaction for both partners.
    • Understanding the underlying mechanisms can help men feel more confident in the medication’s ability to improve their sexual health.
  4. Informed Decision-Making
    • A clear understanding of how Fildena 100 works can help individuals make informed decisions about their ED treatment.
    • It allows for better communication with healthcare providers and ensures that the chosen treatment aligns with personal health needs and expectations.

Usage and Dosage

  • Dosage: The recommended dose is one Fildena 100 mg tablet taken as needed, about one hour before sexual activity. Do not exceed one tablet per day.
  • Administration: Swallow the tablet whole with water. It can be taken with or without food, although a high-fat meal may delay its onset of action.
  • Precautions: Consult a healthcare provider before using Fildena 100, especially if you have underlying health conditions or are taking other medications. Avoid consuming alcohol and grapefruit juice, as they can interfere with the medication’s effectiveness.

Potential Side Effects

Common side effects of Fildena 100 mg include:

  • Headache
  • Flushing
  • Indigestion
  • Nasal congestion
  • Dizziness

Less common but serious side effects may include:

  • Sudden vision or hearing loss
  • Chest pain or irregular heartbeat
  • Shortness of breath
  • Severe allergic reactions

Seek immediate medical attention if any serious side effects occur.


Fildena 100 mg should not be used by individuals who:

  • Are allergic to sildenafil or any other ingredients in the medication.
  • Are taking nitrates for chest pain or heart problems.
  • Have severe liver or kidney disease.
  • Have recently suffered a stroke or heart attack.
  • Have low blood pressure or certain rare inherited eye diseases.


Understanding the science and mechanisms behind Fildena 100 mg provides valuable insights into its effectiveness as a treatment for erectile dysfunction. By inhibiting the PDE5 enzyme and increasing cGMP levels, Fildena 150 enhances blood flow to the penis, leading to improved erectile function. This knowledge can empower users to make informed decisions about their ED treatment and enhance their confidence in the medication’s ability to improve their sexual health. Always consult with a healthcare provider to ensure that Fildena 100 mg is the right choice for your specific condition.