Fildena 150 , like other medications containing Sildenafil Citrate, should not be taken more than once in a 24-hour period. Additionally, it's crucial to avoid high-fat meals before taking this medication, as it may delay the onset of action. Common side effects of Fildena 100 may include headache, flushing, dizziness, indigestion, nasal congestion, or changes in vision such as blurred vision or sensitivity to light. In rare cases, serious side effects like prolonged or painful erection (priapism), sudden vision loss, or hearing loss can occur. 

Seek immediate medical attention if you experience any severe side effects. It's vital to use Vidalista 40 under the guidance of a healthcare professional, as they can provide personalized advice, monitor for any adverse effects, and ensure it's safe and suitable for you based on your medical history and any existing health conditions. As with any medication, it's important to discuss with your doctor before starting Fildena 100 or any other treatment for erectile dysfunction, especially if you have underlying health issues or are taking other medications, to avoid potential interactions or complications.