Today i test blood and my alt is 74 is this normal or not .and i am taking those tablets from last 7 days.( levofloxacin 250 mg....paracitamol 500 mg.

No reliable way: Zero alcohol, no ibuprofen. Maybe it'll drop. Maybe not. The key is that you understand a raised liver enzyme indicates a problem -- perhaps as simple as a medication allergy, beer, or lack of exercise; perhaps hepatitis B or C, hemochromatosis or Wilson's or autoimmune hepatitis waiting to kill you if it's missed. Be savvy, insist your physician explain the cause.