Tamiflu (oseltamivir phosphate) is an antiviral medication used to treat and prevent influenza (flu) in adults and children. When started early, it can help reduce the severity and length of flu symptoms.
Through Klarity Health, you can connect with a board-certified provider and, if medically appropriate, receive a Tamiflu prescription within 24 hours.*
Providers on Klarity Health are independent practitioners with clinical autonomy; a diagnosis, treatment, or prescription is not guaranteed.
Providers on Klarity Health are independent practitioners with clinical autonomy; a diagnosis, treatment, or prescription is not guaranteed.
Your provider will discuss treatment options with you, which may or may not include medication.
Klarity Health connects you with experienced, licensed providers who specialize in the influenza treatment. Select your state to see available providers.
You can request a Tamiflu prescription online through telehealth platforms like Klarity Health. If the provider determines it is medically appropriate based on your symptoms and health history, they can send a prescription directly to your preferred pharmacy. A Tamiflu prescription is only provided when clinically appropriate.
Take the first step—schedule an online visit with a provider on Klarity Health to see if Tamiflu is right for you.
Tamiflu dosage varies by age and purpose:
For treatment:
• Adults and adolescents (13+ years): 75 mg twice daily for 5 days.
• Children (2 weeks to 12 years): Weight-based dosing, twice daily for 5 days.
For prevention (after exposure):
• Adults and adolescents (13+ years): 1 dose once daily for 10 days or as prescribed.
• Children (1 to 12 years): Weight-based dosing once daily for 10 days.
Tamiflu can be taken with or without food, though taking it with food may help prevent stomach upset. Always finish the full course, even if you start feeling better.
Common side effects may include:
• Nausea and vomiting
• Headache
• Fatigue
• Nosebleeds
• Abdominal pain
Rare but serious side effects:
• Severe allergic reactions (rash, swelling, difficulty breathing)
• Seizures, confusion, or unusual behavior, especially in children and teens
Warnings:
• Stop taking Tamiflu and contact a doctor immediately if you experience an allergic reaction or severe rash.
• Inform your doctor if you are pregnant or nursing, have heart or breathing issues, a weakened immune system, kidney problems, or other health concerns.
• Tell your doctor about any medications you are taking or if you’ve had a nasal-spray flu vaccine within the past two weeks.
The cost of Tamiflu can vary based on dosage and pharmacy. Below are typical retail and discounted prices:
Medication | Dosage (Quantity) | Average retail price (Drugs.com) | GoodRx discount price (Los Angeles, CA) |
Tamiflu oral capsule | 30 mg (10 capsules) | $154.72 | $141.79–$159.99 |
Tamiflu oral capsule | 45 mg (10 capsules) | $154.72 | $141.79–$159.99 |
Tamiflu oral capsule | 75 mg (10 capsules) | $167.82 | $154.29–$172.69 |
Prices may vary by location. Using a GoodRx coupon can help lower your cost. Always check for discounts before filling your prescription.
Several antiviral medications can treat or prevent the flu. Here’s how Tamiflu compares:
Medication | Type | Applicable population | Target virus | Prescription required |
Tamiflu (Oseltamivir phosphate) | Neuraminidase inhibitor | ≥2 weeks old for treatment; ≥1 year old for prevention | Influenza A and B | Yes |
Xofluza (Baloxavir marboxil) | Cap-dependent endonuclease inhibitor | ≥5 years old for treatment and prevention | Influenza A and B | Yes |
Relenza (Zanamivir) | Neuraminidase inhibitor | ≥7 years old for treatment; ≥5 years old for prevention | Influenza A and B | Yes |
Rapivab (Peramivir) | Neuraminidase inhibitor | ≥6 months old for treatment | Influenza A and B | Yes |
Reviews from real patients who received treatment from healthcare providers on Klarity Health.
*Appointments are generally available within 24 hours. Free initial consultations are available only with select providers. Prescriptions, particularly for controlled substances, may require an in-person evaluation depending on the state of residence and current federal regulations.
The information provided in this article is for educational purposes only and should not be construed as medical advice. Always seek the guidance of a qualified healthcare professional with any questions or concerns you have regarding your health. Providers on Klarity Health are independent practitioners with clinical autonomy. Nothing in this article is intended to diagnose or treat any condition, including guaranteeing prescription medication of any kind or dosage. Not all providers on Klarity Health prescribe all medications, particularly medications that are controlled substances.
If you’re having a mental health crisis or experiencing a psychiatric emergency, it’s crucial to seek immediate help from a mental healthcare professional, such as a psychiatrist, psychologist, or therapist. You can also call your local emergency services, visit your nearest emergency room, or contact a crisis hotline, such as the National Suicide Prevention Lifeline, by calling or texting 988 or dialing the Lifeline’s previous phone number, 1-800-273-TALK (1-800-273-8255) in the U.S.