Description

Tamiflu 75mg capsules are used to treat and prevent influenza (flu) infections. The key points are:Tamiflu contains the active ingredient oseltamivir, which belongs to a group of medicines called neuraminidase inhibitors. These medicines help to ease or prevent the symptoms of the flu virus infection.Tamiflu 75mg hard capsules are available in blister packs of 10 capsules. The capsules consist of a grey opaque body and a light yellow opaque cap, both imprinted with “ROCHE” and “75 mg” in blue.For patients weighing 40 kg and over, the recommended dose of Tamiflu is 75 mg, which can be taken as 1 capsule. Tamiflu is typically taken twice daily for 5 days to treat the flu, or once daily for 10 days to prevent the flu.Tamiflu is not a vaccine, but rather an antiviral medication that helps treat or prevent influenza infection. It does not change the effectiveness of a flu vaccine, and patients may be prescribed both Tamiflu and a flu vaccine by their doctor.

Product Overview

Tamiflu 75mg capsules are used to treat and prevent influenza (flu) infections. The capsules contain the active ingredient oseltamivir, which belongs to a group of medicines called neuraminidase inhibitors.

Packaging and Dosage

The Tamiflu 75mg capsules are available in blister packs of 10 capsules. Each capsule has a grey opaque body and a light yellow opaque cap, both imprinted with “ROCHE” and “75 mg” in blue.For patients weighing 40 kg and over, the recommended dose of Tamiflu is 75 mg, which can be taken as 1 capsule. Tamiflu is typically taken twice daily for 5 days to treat the flu, or once daily for 10 days to prevent the flu.

Mechanism of Action

Tamiflu is an antiviral medication that helps treat or prevent influenza infection. It does not change the effectiveness of a flu vaccine, and patients may be prescribed both Tamiflu and a flu vaccine by their doctor.

Key Benefits of Tamiflu 75mg Capsules

• Treats and prevents influenza (flu) infections in adults and children aged 13 years and over
• Helps relieve flu symptoms like stuffy or runny nose, sore throat, cough, body aches, tiredness, headache, fever, and chills
• Prevents the flu virus from spreading inside the body
• Reduces the chances of developing flu complications like bronchitis, pneumonia, sinusitis, and earache
• Helps you recover faster from the flu

Key Ingredients

The active ingredient in Tamiflu 75mg capsules is oseltamivir phosphate. Each capsule contains 75mg of oseltamivir.The inactive ingredients are:

• Pre-gelatinised starch
• Povidone K30
• Croscarmellose sodium
• Talc
• Sodium stearyl fumarate
• Gelatin
• Black iron oxide
• Red iron oxide
• Yellow iron oxide
• Titanium dioxide
• Dehydrated alcohol
• Shellac
• n-Butyl alcohol
• FD&C Blue 2
• SDA-3A alcohol

Tamiflu (oseltamivir) is specifically used to treat and prevent infections caused by the influenza (flu) virus. The key points are:

• Tamiflu is an antiviral drug that works by attacking the flu virus to keep it from multiplying in the body. It helps reduce the duration and severity of flu symptoms.
• Tamiflu is not effective against other viral infections like the common cold or COVID-19. It only works against influenza A and B viruses.
• Tamiflu is not a substitute for the annual flu vaccine. It is meant to be used in addition to getting the flu shot, not instead of it.
• Tamiflu is most effective when taken within 48 hours of the onset of flu symptoms. It can shorten the duration of illness by about 1-3 days, especially in high-risk individuals.
• Tamiflu is primarily recommended for those at higher risk of flu complications, such as the elderly, those with weakened immune systems, or those with chronic medical conditions. However, healthier individuals may also benefit from taking it.

In summary, Tamiflu is specifically an antiviral medication for influenza and does not work against other viral infections.

Oseltamivir

Antiviral medication used to treat and prevent influenza

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Trade Name

Tamiflu

Drug Class

Neuraminidase inhibitor

Usage

Used to treat and prevent influenza A and B viruses

Mechanism of Action of Tamiflu (Oseltamivir)

Tamiflu (oseltamivir) is an antiviral medication that works by inhibiting the influenza virus neuraminidase enzyme. This enzyme is crucial for the release and spread of new viral particles from infected cells within the respiratory tract.By blocking neuraminidase, Tamiflu:

• Prevents new viral particles from being released from infected cells
• Reduces the ability of the virus to spread and infect other cells
• Helps alleviate flu symptoms and shorten the duration of illness

Oseltamivir is a prodrug that is converted to its active metabolite, oseltamivir carboxylate, primarily in the liver. The active metabolite is then distributed systemically and excreted mainly unchanged in the urine.In vitro resistance to oseltamivir can occur due to mutations in the hemagglutinin or neuraminidase genes of the influenza virus. However, resistance during therapeutic use has been uncommon and not documented during prophylactic use.

 

Chemical Structure of Oseltamivir

The chemical structure of oseltamivir, the active ingredient in Tamiflu, is:\ce{C16H28N2O4}The key structural features are:

• It is a cyclohexenecarboxylate ester, with an ethyl ester group.
• It has an acetamido group and an amino group attached to the cyclohexene ring.
• It has a pentan-3-yloxy substituent on the cyclohexene ring.

The full systematic chemical name is:
“ethyl (3R,4R,5S)-5-amino-4-acetamido-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate”The molecular weight of oseltamivir is 312.4 g/mol. It is a pro-drug that is converted to the active metabolite oseltamivir carboxylate in the body.The chemical structure of oseltamivir phosphate, the salt form used in the Tamiflu medication, is:\ce{C16H31N2O8P}This salt form has a phosphate group attached, with a molecular weight of 410.4 g/mol.

Dosage

• For adults and children 13 years and older, the recommended dose of Tamiflu is 75mg taken twice daily for 5 days to treat influenza, or 75mg once daily for 10 days to prevent influenza.
• For infants aged 0-12 months weighing 3-10kg, the recommended dose is 3mg/kg taken twice daily for 10 days to treat influenza in those with weakened immune systems, or 3mg/kg once daily for 10 days to prevent influenza.
• Tamiflu can be taken with or without food, but taking it with food may help reduce nausea and vomiting.
• For patients who cannot swallow capsules, a liquid suspension formulation is available or can be prepared from the capsules.

Storage

• Tamiflu 75mg capsules should be stored below 25°C (77°F).
• Do not freeze the medication.
• Keep Tamiflu out of the reach of children.
• Discard any unused portion and do not throw in the trash or flush down the toilet. Consult a pharmacist on proper disposal.

Reviews

The search results do not contain any specific reviews or feedback from patients or healthcare providers on the use of Tamiflu 75mg capsules. However, Tamiflu is a widely used antiviral medication for influenza, and its efficacy and safety have been well-established in clinical trials and real-world use.