Cenforce 120 contains sildenafil, a PDE-5 inhibitor used for erectile dysfunction (ED). Emergency medical consultation is needed if you experience serious or unusual symptoms after taking it. Seek urgent medical help if you have: An erection lasting more than 4 hours (priapism), even if it is not painful. Chest pain, severe shortness of breath, fainting, or severe dizziness. Sudden loss of vision or major vision changes. Sudden hearing loss or ringing in the ears with hearing changes. Signs of a severe allergic reaction, such as swelling of the face/throat, trouble breathing, or severe rash. You should also seek medical advice before using Cenforce 120 mg if you: Take nitrate medicines for chest pain (this combination can cause a dangerous drop in blood pressure). Have significant heart disease, uncontrolled blood pressure problems, or a recent heart attack or stroke. Take medicines that may interact with sildenafil. A 120 mg sildenafil dose is higher than the commonly recommended maximum dose used in many ED treatment guidelines, so it is especially important not to increase the dose or repeat it without medical guidance. If you tell me whether you have already taken Cenforce 120 mg and what symptoms (if any) you are experiencing, I can help you decide how urgent the situation may be.