Oseltamivir Generic

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*Based on the difference between the U&C price submitted and the price the patient paid, as of April 2023.

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  2. Oseltamivir
    Generic for Tamiflu
    30 capsules $26.7 USD
    Save $261.00
  3. Oseltamivir
    Generic for Tamiflu
    30 capsules $27 USD
    Save $260.70
  4. Oseltamivir
    Generic for Tamiflu
    30 capsules $27.3 USD
    Save $260.40
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Do you need a prescription for oseltamivir?

Yes, oseltamivir is only available with a valid physician Rx.

How much is oseltamivir without Insurance in the US?

Our website gives two competitive savings options to US customers who wish to purchase oseltamivir, as either a brand or generic, if available. The first is access to medications through our mail-order online pharmacy. The second is by using the Now Patient Rx Advantage Card, which can be used in over 65,000 pharmacies nationwide, across America. If you are insured, then in most cases, the cash price will be significantly cheaper than the copay.

What will my out-of-pocket cost be for oseltamivir in the US?

There are no out-of-pocket (OOP) costs because we are currently only offering a cash-based option to purchase medications.

Is Now Patient a oseltamivir savings card?

Yes. Save up to 90% on your oseltamivir with the FREE Now Patient Rx Advantage card*.
*Based on the difference between the U&C submitted by the pharmacy and the price the patients pay.

Can you handle Rx transfers for home delivery in the US?

Yes. If you use the mail-order online pharmacy option, then we can handle requests by you to have your prescription transferred to our pharmacy for home delivery. We can even help you manage your refills by giving you timely reminders, so you do not run out of your medication.

Is Now Patient a oseltamivir coupon provider in the US?

No. Now Patient does not provide oseltamivir coupons or FREE oseltamivir samples.

Do you accept commercial, Medicare or Medicaid coverage for oseltamivir in the US?

No. Currently, we only offer cash-based options for purchase, therefore we do not require your insurance benefit details. In the future, our plan is to be able to handle commercial insurance, Medicare and Medicaid including cases where you have multiple health plans that provide benefit coverage (e.g. Medicaid and Commercial). We also anticipate being able to handle more complex scenarios such as using primary insurance combined with a manufacturer copay assistance program.

Does Now Patient work with Medicare?

Our cash-based prices for medications are typically cheaper than Medicare copays. We do not bill Medicare Part D (standalone drug coverage) or Medicare Advantage (combined health and drug coverage). When you purchase your medication from Now Patient, you will be doing so out of your pocket. The spend will not count towards your plan deductibles or gaps.

Does Now Patient work with Commercial Insurance?

Our cash-based prices for medications are typically cheaper than commercial plan copays. We do not bill your commercial plan. When you purchase your medication from Now Patient, you will be doing so out of your pocket. The spend will not count towards your plan deductibles or gaps.

What should you do if you use too much oseltamivir?


Call your doctor right away or seek immediate medical attention if your symptoms do not improve or they become worse after using oseltamivir. You can also call 800-222-1222 to reach the American Association of Poison Control Centers or use its online resource if you think you’ve used too much oseltamivir. But if you have severe symptoms, call 911 (or your local emergency number) immediately or go to the nearest emergency room.


If you think it is an emergency, call 999 or find your nearest A&E
If you need help now, but it’s not an emergency go to 111.nhs.uk or call 111. Alternatively you can speak to one of our pharmacists or use the Now Patient app to make an appointment with your GP.

What should I do if I miss my dose?

There are occasions when people forget to take their medication at correct prescribed times. This may not only have an effect on potentially making the medication less effective but it may also inadvertently lead to taking doses too close together, thereby increasing the risks of side effects.

Click here to find out what to do if you forgot to take your medication

What is generic oseltamivir?

Generic oseltamivir refers to the non-brand-name version of the medication. It contains the same active ingredient as the brand-name drug but is typically less expensive.

FDA approval of oseltamivir

Oseltamivir is approved by the U.S. Food and Drug Administration (FDA) for the treatment and prevention of influenza (flu) in children and adults.

Active ingredient of oseltamivir

The active ingredient of oseltamivir is oseltamivir phosphate.

US brand name of oseltamivir and manufacturer

Oseltamivir is available in the US under the brand name Tamiflu. It is manufactured by Genentech, Inc.

UK brand name of oseltamivir and manufacturer

In the UK, oseltamivir is available under the brand name Tamiflu. The manufacturer may vary depending on the brand name.

Prescription requirement for oseltamivir

A prescription (Rx) is required for oseltamivir in both the US and the UK.

Availability of oseltamivir in the UK with NHS prescription

Oseltamivir is available in the UK with an NHS prescription.

Conditions treated by oseltamivir

Oseltamivir is an antiviral drug used for the treatment of influenza (symptoms include blocked or runny nose, sore throat, cough, muscle aches, fatigue, headache, fever, and chills) caused by influenza A and influenza B viruses infection of the respiratory tract in adults and children 1 year of age and over.

Oseltamivir is not recommended in place of the influenza vaccination. The CDC (Centers for Disease Control and Prevention) recommends a yearly flu shot for the prophylaxis of influenza infection and new strains of the seasonal influenza virus.

How does oseltamivir work?

Oseltamivir is an antiviral medication that belongs to the class of neuraminidase inhibitors. It works by inhibiting the activity of the neuraminidase enzyme on the surface of the influenza virus. Oseltamivir is a pro-drug of the active metabolite (oseltamivir carboxylate). By blocking this enzyme, oseltamivir helps to prevent the release of newly formed viruses from infected cells and reduces the spread of the virus in the body.

Forms of oseltamivir available

Oseltamivir is available in the form of oral capsules and oral suspension.

Dosage of oseltamivir

The dosage of oseltamivir may vary depending on the individual’s age, weight, and the specific condition being treated. It is important to follow the recommended dosage instructions provided by the healthcare provider.

Directions for oseltamivir use

Oseltamivir should be taken exactly as directed by the healthcare provider. The capsules or suspension are usually taken orally, with or without food. It is important to start oseltamivir as soon as possible after the onset of flu symptoms for the most effective treatment.

Warnings and contraindications for oseltamivir

  • Oseltamivir may have certain risks and potential side effects. It is important to discuss these with a healthcare provider before starting the medication
  • Oseltamivir treatment is most effective when started within 48 hours of symptom onset
  • Tell your doctor if you have had a nasal flu vaccine in the past 2 weeks, if you have heart, lung, or kidney disease, are on dialysis, or have a weak immune system
  • Get emergency help if you have an allergic reaction to oseltamivir (hives, trouble breathing, swelling in your face, tongue or throat)
  • Oseltamivir passes into breast milk. Speak to your doctor before breast-feeding

Use of oseltamivir if pregnant or planning pregnancy

The use of oseltamivir during pregnancy should be discussed with a healthcare provider. It is generally considered safe for use during pregnancy, especially in severe cases of influenza.

Possible side effects of oseltamivir

In clinical trials, when compared to placebo, common side effects of oseltamivir included nausea, vomiting, headache, and pain. Serious adverse events are rare but can occur. Promptly report any adverse effects to a healthcare provider.

Interactions with other drugs

Oseltamivir may interact with other medications. It is important to inform your healthcare provider about all the medications you are taking, including prescription drugs, over-the-counter (OTC) drugs, dietary supplements, multivitamins, and herbal products, to avoid any adverse effects and potential drug interactions.

Similar drugs to oseltamivir

Other antiviral medications used for the treatment and prevention of influenza include zanamivir and peramivir.



Now Patient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information in this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.

The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.

Stefano Mirabello Medical Reviewer
Pharmacist / B.Pharm
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