The most common side effects of  Cenforce FM 100 mg, which contains Sildenafil Citrate as its active ingredient, typically include:

1. Headache: This is one of the most frequently reported side effects.

2. Flushing: Some individuals may experience redness or warmth in the face, neck, or chest.

3. Indigestion: This can manifest as stomach discomfort or upset.

4. Nasal congestion: A stuffy or runny nose may occur in some users.

5. Dizziness or lightheadedness: Some people may feel dizzy or experience a spinning sensation.

6. Blurred vision: Vision changes, such as blurred vision or increased sensitivity to light, can occur.

These side effects are usually mild to moderate and often diminish as the medication's effects wear off. However, if any side effects persist or worsen, it's important to seek medical advice. Additionally, serious side effects such as sudden vision or hearing loss are rare but require immediate medical attention. It's crucial to consult a healthcare provider before using Cenforce FM 100 mg or any medication containing Sildenafil to discuss potential risks, interactions, and suitability based on individual health status.