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Vemlidy (Tenofovir Alafenamide)

Prescription requiredOnly Available By Prescription
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What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.


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Vemlidy (tenofovir alafenamide) is a prescription medication approved for the treatment of chronic hepatitis B virus (HBV) infection in adults with compensated liver disease. Vemlidy belongs to a class of antiviral drugs known as nucleotide reverse transcriptase inhibitors (NRTIs), which help prevent the virus from multiplying and can reduce the amount of the virus in the body. Vemlidy offers the advantage of being effective at a lower dose compared to other tenofovir drugs, potentially leading to fewer renal and bone side effects.

Before you buy Vemlidy, it is crucial that you talk to your healthcare provider about potential side effects and Vemlidy price.

Fact Table
Formula C21H29O5N6P
License FDA approved
Bioavailability High (under fasted conditions)
Legal status Prescription Drug
Chemical Name Tenofovir Alafenamide Fumarate
Elimination half-life Approximately 0.5 hours
Dosage (Strength) 25 mg tablets
Pregnancy Consult healthcare provider
Brands Vemlidy
Protein binding 80% (plasma)
PubChem CID 44468282
MedlinePlus a617040
ChEBI 87082
ATC code J05AF13
DrugBank DB09299
KEGG D10755
Routes of administration Oral

Buy Vemlidy (Tenofovir Alafenamide) online from online Canadian Pharmacy |


Vemlidy should be taken exactly as prescribed by your healthcare provider. The typical dosage is one tablet taken orally once daily with food. It is crucial to follow the dosing schedule closely and not to alter the dose or discontinue the medication without consulting your doctor. Regular follow-up appointments are necessary to monitor your liver function and the effectiveness of the treatment.


Vemlidy uses tenofovir alafenamide as its active ingredient.


Patients with a history of liver disease or those who are co-infected with HIV should use Vemlidy with caution. Regular liver function tests are recommended to monitor for potential worsening of liver disease.

Since tenofovir alafenamide can affect renal function, kidney function tests should be performed periodically during treatment.

Tenofovir drugs have been associated with bone loss; therefore, patients at risk of osteoporosis or who have existing bone health issues should discuss this with their healthcare provider.


Vemlidy can interact with other medications, which can alter how it or the other medications work. You should disclose all medications you are using, including prescription drugs, over-the-counter products, and herbal supplements, to your healthcare provider. Notable interactions include antiretrovirals, NSAIDs and supplements containing calcium or iron.

Side Effects

Like all medications, Vemlidy can cause side effects, though not everyone experiences them. Common side effects include:

  • Nausea
  • Fatigue
  • Headache
  • Stomach pain
  • Dizziness

Frequently Asked Questions about Vemlidy

Why is Vemlidy so expensive?

The high cost of Vemlidy is due to a variety of factors including the costs of research and development, manufacturing, and marketing. The lack of a generic version also contributes to its high price.

What is Vemlidy used for?

Vemlidy (tenofovir alafenamide) is an antiviral medication used to treat chronic hepatitis B virus (HBV) infection in adults and children aged 6 years and older.

Can Vemlidy cure hepatitis B?

While Vemlidy can suppress the hepatitis B virus and improve liver condition, it does not typically lead to a complete cure. Long-term treatment is often required.

How does Vemlidy work?

Vemlidy works by inhibiting the replication of the hepatitis B virus. It is converted inside liver cells to its active form, which incorporates into the viral DNA and terminates the DNA chain.

How long do you take Vemlidy?

The duration of Vemlidy treatment varies and can last several years. It is typically taken until the healthcare provider determines that treatment can be stopped.

Is there a generic for Vemlidy?

A generic version of Vemlidy has been approved by the FDA, but it may not be commercially available due to drug patents and/or drug exclusivity.

Is Vemlidy an immunosuppressant?

No, Vemlidy is not an immunosuppressant. It is an antiviral medication that works by inhibiting the replication of the hepatitis B virus.

When to stop Vemlidy?

Vemlidy should not be stopped without consulting a healthcare provider. Stopping Vemlidy can lead to a flare-up of hepatitis B. Regular monitoring and blood tests are required after stopping the medication.

IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.