Libtayo (cemiplimab-rwlc) is a brand-name drug prescribed for specific types of cancer in adults. Libtayo is a solution given as an intravenous (IV) infusion by a healthcare professional. The drug is typically given every 3 weeks.

Libtayo is approved by the Food and Drug Administration (FDA) to treat:

Your doctor may prescribe this drug if you have already tried other medications to treat your specific cancer.

Libtayo is a biologic drug and belongs to a group of drugs called programmed death receptor-1 blockers. Libtayo is not available in biosimilar version.

Keep reading for specific information about the dosage of Libtayo, including its strength and how the medication is given. For a comprehensive look at Libtayo, see this article.

This article describes typical dosages for Libtayo provided by the drug’s manufacturer. However, your doctor will prescribe the Libtayo dosage that’s right for you.

Note: The reason “-rwlc” appears at the end of the drug’s name is to show that the drug is distinct from similar medications that may be created in the future.

* Locally advanced and metastatic cancers are cancers that have spread to other areas of your body.

The following chart summarizes Libtayo’s dosage. Your doctor will determine the dosage that’s best for you.

FormStrengthDosing
solution given by IV infusion350 milligrams per 7 milliliters of solution (mg/mL)350 mg every 3 weeks, given over 30 minutes

Below is in-depth information about Libtayo dosage for its approved uses.

Libtayo form

Libtayo comes as a solution in a vial. The solution is given by IV infusion by your doctor or another healthcare professional. You’ll receive your infusion at your doctor’s office, a hospital, or an infusion site.

Libtayo strength

Libtayo only comes in one strength: 350 milligrams per 7 milliliters of solution (mg/mL).

Typical dosages

Your doctor will recommend the best dosage of Libtayo for you. They will ultimately prescribe the smallest dosage that provides the desired effect.

The following information describes dosages that are commonly used or recommended. However, be sure to take the dosage your doctor prescribes for you. Your doctor will determine the best dosage to fit your needs.

Dosage for cutaneous squamous cell carcinoma

To treat certain types of locally advanced or metastatic cutaneous squamous cell carcinoma, the recommended Libtayo dosage is 350 mg every 3 weeks.

You’ll typically receive Libtayo infusions until your condition worsens, you have bothersome side effects, or for up to 24 months.

Dosage for basal cell carcinoma

For treating certain types of locally advanced or metastatic basal cell carcinoma, the recommended dosage of Libtayo is 350 mg every 3 weeks.

You’ll typically receive Libtayo infusions until your condition worsens, you have bothersome side effects, or for up to 24 months.

Dosage for non-small cell lung cancer

To treat certain types of locally advanced or metastatic non-small cell lung cancer, the recommended Libtayo dosage is 350 mg every 3 weeks.

You’ll typically receive Libtayo infusions until your condition worsens or you have bothersome side effects.

Long-term treatment

Libtayo is meant to be used as a long-term treatment. If you and your doctor determine that Libtayo is safe and effective for you, you’ll likely take it long term.

Before you start taking Libtayo, your doctor will discuss your treatment plan with you.

Libtayo comes as a solution that’s given by IV infusion (an injection through a vein over time). Your doctor or another healthcare professional will give your dose of Libtayo at a doctor’s office, hospital, or infusion site. It’s typically given over 30 minutes.

If you notice any side effects from the drug, tell your doctor right away. These side effects may happen during or after the infusion. Your doctor may recommend slowing down, pausing, or even stopping your infusion. This will depend on the type of side effects that you have. (To learn about the side effects of Libtayo, see this article.)

If you miss your appointment for your Libtayo infusion, call your doctor’s office. They’ll reschedule your appointment as soon as possible.

It’s important not to miss your Libtayo infusion appointments. If you do not get your dose every 3 weeks, Libtayo may not work as well as it should to treat your cancer.

To help make sure that you don’t miss an infusion appointment, try using a medication reminder. This can include setting an alarm or using a timer. You could also download a reminder app on your phone.

The dosages in this article are typical dosages provided by the drug’s manufacturer. If your doctor recommends Libtayo for you, they will prescribe the dosage that’s right for you. If you have questions about the dosage of Libtayo that’s best for you, talk with your doctor.

Besides learning about dosage, you may want other information about Libtayo. These additional articles might be helpful:

Disclaimer: Medical News Today has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or another healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.