Haloperidol, or norfloxacin, adult dosage is usually 0.1 to 0.2 g per time, 3 to 4 times a day. The specific dosage should follow the doctor’s advice according to the condition. Norfloxacin is indicated for urinary tract infections, prostatitis, gonorrhea, intestinal infections, typhoid fever and other infections caused by Salmonella. It is usually taken orally on an empty stomach, and the dose for adults is 0.1-0.2g/time, 3-4 times/day. The dose may be increased at the discretion of those who are seriously ill. This drug can cause abdominal pain, diarrhea, rash, dizziness, drowsiness and other adverse reactions. It is prohibited for those who are allergic to the drug. Use with caution in pregnant women, lactating women, and children. The specific dosage of Norfloxacin should be used under the guidance of a doctor or pharmacist, depending on the type of disease to be treated and the use of reasonable dosage to avoid adverse reactions.