Cenforce, which contains the active ingredient Sildenafil Citrate (the same as Viagra), is commonly used to treat erectile dysfunction (ED). While it can be effective in helping men with ED, like any medication, it may cause side effects. The severity and likelihood of side effects can vary depending on individual health conditions, dosage, and how the body responds to the drug. Here are the common and serious side effects of Cenforce: Common Side Effects: These side effects are generally mild and temporary: Headache: This is one of the most commonly reported side effects of Cenforce. Flushing (redness of the face or neck): Some people experience a feeling of warmth or redness in the skin. Indigestion or Upset Stomach: You might feel uncomfortable after taking the medication, including bloating or heartburn. Nasal Congestion: Some people report a stuffy nose after taking Cenforce. Dizziness or Lightheadedness: A feeling of dizziness or being lightheaded may occur, especially when standing up quickly. Back Pain: In some cases, Cenforce can cause muscle pain or discomfort, especially in the back. Vision Changes: Some people may experience temporary blurred vision or a blue tinge to their vision (due to the way Sildenafil affects blood flow in the eyes). Rash: Skin rashes can occasionally occur. Less Common but Serious Side Effects: These side effects are more rare but may require immediate medical attention: Priapism (Prolonged Erections): A painful, prolonged erection lasting more than 4 hours can occur. This is a medical emergency and requires immediate treatment to prevent long-term damage to the *****.