Vicodin 500mg if you have be sure you have one to two tablets every four to six hours as a patient to pain.to buy vicodin 500mg online this medicine may be taken with or without food.It’s typically used to treat moderate to severe pain, & can also be found as norco & lortab.take this medication exactly as prescribed to lower the risk of addiction. side effect of drowsiness, headache,dry mouth blurred vision.The dosage is based on your medical condition & response to treatment. do not increase your dose, take the medication or take it for a longer time than prescribed.