Cenforce 150 mg is a conventional sildenafil tablet, it can generally be swallowed whole with a glass of water. Sildenafil tablets are intended for oral use and conventional tablets should be swallowed with water. One important point: 150 mg is above the usual maximum recommended Cenforce 150 mg dose of 100 mg, so Cenforce 150 mg should not be taken unless specifically prescribed by a healthcare professional. Also, sildenafil should not be combined with nitrate medicines, because this can cause a dangerous drop in blood pressure.