Fildena 50 (sildenafil 50 mg) does not normally cause physical dependence or addiction. Sildenafil works temporarily by increasing blood flow to the ***** during ***** stimulation, and long-term use has not been shown to cause lasting harmful effects. N nhs.uk +1 You may, however, feel psychologically dependent on it if you become worried that you can't have sex without the tablet. That's different from physical addiction. A few important points: 50 mg is the usual starting dose for sildenafil when needed. Don't take it more than once in 24 hours. N nhs.uk If you suddenly need it more often or erections are becoming increasingly difficult without it, it's worth discussing with a doctor, because ED can be associated with conditions such as high blood pressure, diabetes, or cardiovascular disease. N nhs.uk Don't use sildenafil with nitrate medicines for chest pain. N nhs.uk If you want, I can also explain whether taking Fildena 50 regularly (e.g., several times a week) is safe.