Suhagra 100 mg, which contains Sildenafil Citrate (the same active ingredient found in Viagra), can cause side effects in some individuals. While many people tolerate Suhagra well, it is important to be aware of the potential side effects. Common Side Effects of Suhagra 100 mg: Headache: One of the most common side effects associated with Sildenafil is a headache, which typically resolves after some time. Flushing: You may experience a feeling of warmth, redness, or a flushed appearance, especially in the face, neck, or chest. Indigestion (Dyspepsia): Suhagra can cause upset stomach, heartburn, or indigestion, which can be bothersome for some people. Nasal Congestion: A  Suhagra 100 mg or runny nose is another common side effect. Dizziness or Lightheadedness: Some users may experience a sensation of dizziness, especially when standing up quickly. Visual Disturbances: Some men may notice changes in vision, such as a blue tinge to vision, blurred vision, or heightened sensitivity to light. These symptoms are typically short-lived. Back Pain or Muscle Aches: Muscle pain or discomfort in the back is a possible side effect of Suhagra. Serious Side Effects: Although rare, serious side effects can occur. Seek immediate medical attention if you experience any of the following: Priapism: This is a rare but serious condition where an erection lasts for more than 4 hours. This condition requires immediate medical attention, as it can lead to permanent damage to the penis. Sudden Vision Loss: Vision changes, including sudden vision loss in one or both eyes, could indicate a condition called non-arteritic anterior ischemic optic neuropathy (NAION). NAION is a serious condition that can lead to permanent blindness and requires urgent medical intervention. Sudden Hearing Loss: Some users may experience sudden hearing loss or ringing in the ears (tinnitus). This could be a sign of a serious condition and should be evaluated by a doctor immediately. Chest Pain or Irregular Heartbeat: Chest pain or irregular heartbeats (arrhythmias) can be serious and require emergency medical attention. Severe Dizziness or Fainting: Sudden dizziness, lightheadedness, or fainting can be signs of low blood pressure, which can be a serious side effect. Precautions and Warnings: Heart Conditions: If you have a history of heart disease, heart attack, or stroke, it is important to consult a healthcare provider before taking Suhagra 100 mg. Erectile dysfunction medications can cause a slight drop in blood pressure, which may not be safe for individuals with heart conditions. Nitrate Medications: Suhagra should never be taken with nitrate medications (often prescribed for chest pain or heart problems) as the combination can cause a severe and dangerous drop in blood pressure.