Cenforce 150 (sildenafil 150 mg) and caffeine do not have a well-known direct dangerous interaction, but combining them may increase the chance of certain side effects in some people. Possible issues: Faster heartbeat, palpitations, jitteriness, or anxiety (caffeine can stimulate the nervous system, while sildenafil can affect blood pressure and circulation). Dizziness or lightheadedness, especially if you are sensitive to blood pressure changes. Headache or flushing, which are common with sildenafil and may also occur with caffeine in some Cenforce 150 . For safer use: Avoid taking a large amount of caffeine (for example, multiple strong coffees or energy drinks) around the time you take sildenafil. Avoid alcohol, as it can worsen dizziness and erectile problems. Do not take Cenforce 150 with nitrate heart medicines or certain interacting medicines. Also note that 150 mg of sildenafil is above the usual maximum recommended single dose (100 mg), so it is worth confirming the dose with a healthcare professional. If you tell me your age, how much caffeine you plan to take (coffee/tea/energy drink), and whether you have blood pressure or heart problems, I can give more tailored guidance.