View LITFULO savings options available to you including Manufacturer Coupons, Rx Advantage Savings Card, Canadian Prescription Savings or LITFULO Patient Assistance Program.

Programs are suitable for individuals who want to buy LITFULO without insurance, with insurance or for those who are underinsured. You can pay as little as $0 per fill.*

Manufactured by Pfizer

*Applicable to Drug Coupons & Patient Assistance Programs

This content is intended for US audiences only

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    Drug Coupons

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    Patient Assistance Programs

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Jamie Winn NowPatientGreen tick
Updated on 26 Apr 2024

Learn more about LITFULO

What is LITFULO?

What is LITFULO?

LITFULO is the brand name for ritlecitinib and is available as an oral capsule.

What dosages is LITFULO available in?

What dosages is LITFULO available in?

LITFULO is available as a 50 mg oral capsule.

What is LITFULO used for?

What is LITFULO used for?

LITFULO is a JAK kinase and tyrosine kinase inhibitor and is used to treat severe hair loss (alopecia areata) in people ages 12 years and older.

How does LITFULO work?

How does LITFULO work?

LITFULO is a kinase inhibitor. It works by blocking enzymes (proteins) called Janus kinase (JAK) and tyrosine kinase. This prevents the activation of other proteins in your immune system from attacking hair follicles and causing hair loss.

How do I take LITFULO?

How do I take LITFULO?

LITFULO is typically dosed at 50 mg by mouth once daily.

Is it safe for me to take LITFULO?

Is it safe for me to take LITFULO?

LITFULO is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you.

LITFULO Common Side Effects

LITFULO Common Side Effects

Common side effects of LITFULO:

  • Headache
  • Diarrhea
  • Acne
  • Rash
  • Hives
LITFULO Serious Side Effects

LITFULO Serious Side Effects

Serious side effects are rare with LITFULO. Contact your healthcare provider immediately if you experience any of the following.

  • Stroke: sudden weakness in your body, trouble speaking, confusion, dizziness
  • Arterial thrombosis (blood clot in the heart): chest pain; short of breath; pain in the jaw, neck, or back; feeling weak or light-headed
  • Pulmonary embolism (blood clot in the lung): cough, chest pain, trouble breathing, racing heart
    Deep vein thrombosis (blood clot in the leg): leg cramp, swelling, pain, muscle tightness
  • Serious bleeds: bleed or bruise easily, bleeding that’s hard to stop, coughing blood, stomach pain, blood in urine or stool
  • Serious infections: fever, difficulty breathing, diarrhea, weakness, cough, stomach pain, sweating, chills, burning when you urinate, urinating more often
    Allergic reaction: hives, rash, feeling faint, trouble breathing, swelling of your lips or tongue
Effects of other drugs, drug classes and over-the-counter products on LITFULO

Effects of other drugs, drug classes and over-the-counter products on LITFULO

The following medications may interact with LITFULO:

  • Certain CYP3A substrates: Additional monitoring and dose adjustment of CYP3A substrate should be considered.
  • Certain CYP1A2 substrates: Additional monitoring and dose adjustment of CYP1A2 substrate should be considered
  • Certain CYP3A inducers: Coadministration with strong inducers of CYP3A is not recommended
Who makes LITFULO?

Who makes LITFULO?


Is LITFULO safe in pregnancy?

Is LITFULO safe in pregnancy?

It is not known if LITFULO will harm your unborn baby.
Females who are able to become pregnant: Tell your healthcare provider if you are pregnant or plan to become pregnant during treatment with LITFULO. There is a pregnancy registry for people who take LITFULO during pregnancy. Report pregnancies to Pfizer Inc. at 1-877-390-2940.


What to do if you missed your LITFULO dose

The FDA's medical product safety reporting program for health professionals, patients and consumers.

Learn more about reporting side effects
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Drug Savings Tips

Medical Disclaimer

NowPatient 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 on 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.

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