Oseflu 75 mg contains Oseltamivir Phosphate, an oral antiviral medication used for the treatment and prevention of influenza (flu) caused by influenza virus types A and B. It is effective in reducing the severity and duration of flu symptoms when started early and also plays a vital role in preventing influenza in individuals who have been exposed to infected persons. Oseflu 75 mg is widely used in both community and clinical settings during influenza outbreaks.

রেজিস্টার্ড চিকিৎসকের পরামর্শ অনুযায়ী ঔষধ সেবন করুন

Composition

• Active ingredient: Oseltamivir Phosphate 75 mg

• Dosage form: Capsule

Therapeutic Class

• Respiratory antiviral agent

• Influenza neuraminidase inhibitor

Pharmacology and Mode of Action

Oseltamivir is a prodrug that is converted in the body to its active metabolite, oseltamivir carboxylate. This active form inhibits neuraminidase (sialidase), an enzyme found on the surface of influenza viruses. Neuraminidase is essential for viral replication and the release of newly formed viruses from infected host cells. By inhibiting this enzyme, Oseflu 75 mg prevents the spread of the virus within the respiratory tract, thereby limiting disease progression and reducing infectivity.

Indications

Oseflu 75 mg is indicated for:

• Treatment of influenza in adults and children over one year of age when influenza virus is circulating in the community

• Prevention (prophylaxis) of influenza in adults and adolescents aged 13 years and older who have been in close contact with someone diagnosed with influenza

• Prophylaxis during community outbreaks of influenza under medical advice

Dosage and Administration

Oseflu 75 mg may be taken with or without food; however, taking it with meals may improve gastrointestinal tolerability.

• Treatment of influenza:

  • Adults and adolescents (13 years and older): 75 mg twice daily for 5 days

  • Treatment should ideally begin within 48 hours of symptom onset

• Prophylaxis of influenza:

  • Following close contact with an infected individual: 75 mg once daily for at least 7 days

  • During community outbreaks: 75 mg once daily for up to 6 weeks, with protection lasting as long as therapy continues

For patients who have difficulty swallowing, the capsule may be opened and mixed with sweetened food products such as chocolate syrup, sweetened condensed milk, apple sauce, or yogurt. The mixture should be swallowed immediately after preparation.

রেজিস্টার্ড চিকিৎসকের পরামর্শ অনুযায়ী ঔষধ সেবন করুন

Drug Interactions

Based on pharmacological and pharmacokinetic studies, clinically significant drug interactions with Oseflu 75 mg are unlikely. Co-administration with amoxicillin does not affect plasma levels of either drug.

Contraindications

Oseflu 75 mg is contraindicated in patients with known hypersensitivity to oseltamivir or any component of the formulation.

Side Effects

The most commonly reported side effects are nausea and vomiting, usually mild to moderate and occurring during the first two days of therapy. Less common adverse events (occurring in less than 1% of patients) include anemia, pneumonia, fever, unstable angina, pseudomembranous colitis, and peritonsillar abscess.

Pregnancy and Lactation

Oseflu 75 mg is classified as Pregnancy Category C. There are insufficient human data to fully assess risk during pregnancy. It should be used during pregnancy or breastfeeding only if the potential benefit outweighs the potential risk to the fetus or infant.

Precautions and Warnings

• Oseflu 75 mg is effective only against influenza virus types A and B

• Efficacy when treatment is started after 40 hours of symptom onset has not been established

• Dose adjustment is recommended in patients with renal impairment (creatinine clearance <30 mL/min)

Storage Conditions

• Store at 25°C

• Reconstituted suspension should be stored at 2–8°C for up to 17 days or at 25°C for up to 10 days

• Do not freeze

Oseflu 75 mg is a trusted antiviral therapy for managing and preventing influenza, helping reduce symptom severity, limit viral spread, and protect high-risk individuals when used as directed.