LECOURSE-500

Mechanism of Action

Levofloxacin is a broad spectrum antibacterial agent. It act by inhibiting the enzyme DNA gyrase (Topoisomerase 2) and Topoisomerase 4.DNA gyrase helps in the formation of a highly condensed three dimensional structure of the DNA by its nicking and closing activity and also by introducing negative supercoil in to the DNA double helix. Levofloxacin inhibits DNA gyrase which results in abnormal linkage between opened DNA and gyrase and negative supercoiling is also impaired. This will inhibits transcription of DNA in to RNA and subsequent protein synthesis.

PharmacoKinetics

Absorption: It is rapidly and completely absorbed after oral administration.

Distribution: It is distributed widely in the body.

Metabolism: It undergoes insignificant metabolism in the liver.

Excretion: Drug is excreted mainly through urine.

Half-life

6-8 hours

Adverse Effects

1. Nausea  2. Vomiting  3. Diarrhoea  4. Abdominal discomfort  5. Restlessness  6. Dizziness  7. Drowsiness  8. Arthralgia  9. Rash 10. Confusion  11. Insomnia  12. Anorexia  13. Bad taste  14. Headache  15. Photosensitivity.

Special Precautions

1.Hepatic impairment  2.Renal impairment  3.Epilepsy  4.Cerebral arteriosclerosis 5. Caution while driving the vehicle or operating machine or involved in any hazardous activities. 6. Avoid exposure to sun light 7. CNS disease

Pregnancy

Contraindicated

Breastfeeding

Contraindicated

Old Age

Use with caution

Children

Contraindicated. 

Contraindications

Hypersensitivity to Levofloxacin and other Fluoroquinolones

Indications

1.Sinusitis  2.Bronchitis  3.Pneumonia  4.Urinary tract infection 5.Traveler`s diarrhoea  6.Skin and soft tissue infections

Dosage & Administration

Adults:  Dose is determined on the basis of severity of the infection, type of infecting organism, age, weight and renal function of the patient.

Sinusitis, Bronchitis, Pneumonia, Skin and soft tissue infections: 500 mg daily for 1 – 2 week

Urinary tract infection: 250 mg / day for 10 days

Traveler`s diarrhoea: 500 mg / day along with Loperamide

Schedule

H

Storage

Store at 25 – 30°C in a tightly closed container.

Overdose

Give supportive measures and symptomatic treatment. Empty the stomach. Maintain appropriate hydration.

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LECOURSE-500

LECOURSE-500

Pharmacology of Drug: Levofloxacin

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