Avoid intake of Nitrate capsules or the drug used to treat angina pectoris, including isosorbide dinitrate, isosorbide mononitrate due to the fact with cenforce 150mg it results in serious fall in B.P.avoid consumption of α-Blockers like terazosin, doxazocin, Prazosin, due to the fact in combination with cenforce 150mg , it leads to excessive drop in blood stress