Besibac Ophthalmic Suspension

Introduction

Besibac Ophthalmic Suspension 0.6% is an antibiotic belonging to the class of fluoroquinolone. It is used to treat bacterial infections of the eyes, nose, and throat.

Uses

Besibac Ophthalmic Suspension 0.6% is used to treat bacterial conjunctivitis, bacterial keratitis, bacterial rhinitis, and bacterial pharyngitis.

Brand Name	Besibac
Type	Ophthalmic Suspension
Weight	0.6%
Generic	Besifloxacin
Manufacturer	Popular Pharmaceuticals Ltd.
Available in	English বাংলা

Mechanism of Action

Besibac Ophthalmic Suspension 0.6% exerts its antimicrobial action by inhibiting the enzymes, DNA gyrase and topoisomerase IV, which are essential for the bacterial DNA replication, transcription, and repair. This results in the inhibition of the growth and multiplication of the bacteria.

How Long Does it Take to Work?

Besibac Ophthalmic Suspension 0.6% may start to work within 24 hours of administration. A full course of therapy, as prescribed by the doctor, is necessary for the complete resolution of the infection.

Absorption

The bioavailability of Besibac Ophthalmic Suspension 0.6% is approximately 77%. It is rapidly absorbed from the ocular surface and is present in the ocular tissues for up to 12 hours.

Route of Elimination

Besibac Ophthalmic Suspension 0.6% is eliminated through the kidneys by glomerular filtration.

Dosage

Adults and children (1 year of age and older): Instill one drop in the affected eye(s) 3 times a day for 7 days.

Pediatric Use: The safety and effectiveness of Besifloxacin in infants below one year of age have not been established. The efficacy of Besifloxacin in treating bacterial conjunctivitis in pediatric patients one year or older has been demonstrated in controlled clinical trials.

Geriatric Use: No overall differences in safety and effectiveness have been observed between elderly and younger patients.

The recommended dosage of Besibac Ophthalmic Suspension 0.6% is as follows:

Conjunctivitis: 1 drop of 0.6% Besibac Ophthalmic Suspension 0.6% ophthalmic solution administered 3 times daily into the affected eye(s).
Keratitis: 1 drop of 0.6% Besibac Ophthalmic Suspension 0.6% ophthalmic solution administered 4-5 times daily into the affected eye(s).
Rhinitis and Pharyngitis: 500 mg of Besibac Ophthalmic Suspension 0.6% oral suspension administered twice daily for 5-7 days.

Administration

Besibac Ophthalmic Suspension 0.6% is available in two forms: ophthalmic solution and oral suspension. The ophthalmic solution is used for ocular infections and the oral suspension is used for respiratory infections.

Side Effects

The common side effects of Besibac Ophthalmic Suspension 0.6% include eye irritation, headache, dizziness, and nausea. Other rare side effects include allergic reactions, palpitations, tachycardia, and gastrointestinal upset.

Toxicity

Besibac Ophthalmic Suspension 0.6% has low toxicity and most of the side effects are mild and reversible. In case of severe side effects, the medication should be discontinued and the patient should seek medical help.

Precautions

Besibac Ophthalmic Suspension 0.6% should be used with caution in patients with known hypersensitivity to quinolones. It should be avoided in patients with a history of myasthenia gravis due to the risk of worsening of the symptoms. It should be used with caution in patients with a history of epilepsy or other seizure disorders, as it may increase the frequency of seizures.

Interaction

Besibac Ophthalmic Suspension 0.6% has the potential to interact with other medications. It should not be used in combination with any other quinolones or antacids containing magnesium, aluminum, or iron, as it may decrease its absorption. It should also be used with caution in combination with other medications such as anticoagulants, antiplatelet agents, immunosuppressants, and antidiabetics.

Disease Interactions

Besibac Ophthalmic Suspension 0.6% should be used with caution in patients with known hypersensitivity to quinolones, myasthenia gravis, epilepsy, and other seizure disorders, kidney or liver disease, and diabetes.

Drug Interactions

Besibac Ophthalmic Suspension 0.6% should not be used in combination with other quinolones or antacids containing magnesium, aluminum, or iron, as it may decrease its absorption. It should also not be used in combination with anticoagulants, antiplatelet agents, immunosuppressants, and antidiabetics.

Food Interactions

Besibac Ophthalmic Suspension 0.6% should be taken at least two hours before or six hours after the consumption of food, dairy products, antacids, vitamins, and iron supplements to reduce the risk of interaction.

Pregnancy Use

Besibac Ophthalmic Suspension 0.6% should not be used during pregnancy, unless absolutely necessary. It is not known if it is safe for use during breastfeeding.

Lactation Use

Besibac Ophthalmic Suspension 0.6% should not be used during breastfeeding, as it may pass into breast milk and harm the nursing infant.

Acute Overdose

In cases of accidental overdose, supportive measures such as gastric lavage and symptomatic management should be given. The patient should be closely monitored for signs of toxicity and side effects.

Contraindication

Besibac Ophthalmic Suspension 0.6% is contraindicated in patients with known hypersensitivity to quinolones, myasthenia gravis, epilepsy, and other seizure disorders.

Use Direction

Besibac Ophthalmic Suspension 0.6% should be administered exactly as prescribed by the doctor. The medication should be used at regular intervals and for the full duration of the prescribed therapy. Dosage should not be increased without consulting the doctor.

Storage Condition

Besibac Ophthalmic Suspension 0.6% should be stored at room temperature in a cool, dry place. The ophthalmic solution should be kept in its original container and should not be exposed to direct sunlight or heat.