PREVYMIS
Are you tired of high medication costs? Our service offers unbeatable savings on your PREVYMIS prescription medication. We provide a range of solutions to help you save up to 100% on your medication costs*. Whether you are insured, uninsured, underinsured, or simply looking to reduce your out-of-pocket expenses, we've got you covered.
Manufactured by Merck & Co., Inc.
*You can pay as little as $0 per fill using Drug Coupons or Patient Assistance Programs. Subject to applicability & eligibility requirements.
This content is intended for US audiences only
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PREVYMIS key facts
What is PREVYMIS?
PREVYMIS is the brand name for letermovir and is available as an oral tablet and IV injection.
What dosages is PREVYMIS available in?
PREVYMIS is available as a 240 mg and 480 mg oral tablet and a 240 mg/12 mL (20 mg/mL) or 480 mg/24 mL (20 mg/mL) IV injection.
What is PREVYMIS used for?
PREVYMIS is an antiviral and is used to prevent cytomegalovirus (CMV) infection in adults:
Who received a stem cell transplant and tests positive for CMV
Who received a kidney transplant and are at high risk for CMV infection
How does PREVYMIS work?
PREVYMIS is an antiviral medication. It stops a certain enzyme (protein) in cytomegalovirus (CMV) from working. This prevents the virus from being able to replicate (copy itself) and grow.
How do I take PREVYMIS?
PREVYMIS is typically started right before or within a month after you’ve received your stem cell or kidney transplant. You’ll continue to take this medication until 100 days after your stem cell transplant, or 200 days after your kidney transplant.
The typical dose is 480 mg by mouth once daily. If you can’t take medications by mouth, PREVYMIS can also be given as an injection into the veins (IV) by a healthcare provider.
Your dose might differ if you’re also taking cyclosporine.
Is it safe for me to take PREVYMIS?
PREVYMIS 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. PREVYMIS is contraindicated with:
Pimozide.
Ergot Alkaloids.
Pitavastatin and simvastatin when co-administered with cyclosporine.
PREVYMIS Common Side Effects
Common side effects of PREVYMIS:
- Nausea
- Diarrhea
- Vomiting
- Swelling in arms or legs
- Cough
- Headache
- Fatigue
- Stomach pain
PREVYMIS Serious Side Effects
Serious side effects are rare with PREVYMIS.
Effects of other drugs, drug classes and over-the-counter products on PREVYMIS
The following medications may interact with PREVYMIS:
- Dosage Adjustment: If PREVYMIS is co-administered with
- cyclosporine, the dosage of PREVYMIS should be decreased to
- 240 mg once daily.
- Co-administration of PREVYMIS may alter the plasma concentrations
- of other drugs and other drugs may alter the plasma concentrations
- of PREVYMIS. Consult the full prescribing information prior to and
- during treatment for potential drug interactions.
Who makes PREVYMIS?
Merck & Co., Inc.
Is PREVYMIS safe in pregnancy?
No adequate human data are available to establish whether PREVYMIS poses a risk to pregnancy
outcomes. PREVYMIS should only be used during pregnancy if the benefit to you is worth the possible risk to your baby.
The FDA's medical product safety reporting program for health professionals, patients and consumers.
Learn more about reporting side effectsDrug Savings Guide
A practical guide to saving money and receiving support with prescription costs
How can NowPatient help me to lower the cost of my PREVYMIS prescription?
After you create a FREE account with NowPatient, you will have access to 4 programs that can help lower the cost of your PREVYMIS prescription
Applicability to each program will be dependent on your insurance status.
How do the NowPatient PREVYMIS savings programs work?
After you have created your FREE account with NowPatient, you can access the various programs from your account dashboard. Each program has clear instructions on how to check your eligibility. You can see how the process works by clicking on the feature link below and seeing the ‘How it works’ steps.
Drug Coupon and Patient Assistance Programs require an eligibility quiz to be completed.
Are the NowPatient PREVYMIS savings programs suitable for everyone, regardless of insurance status?
No. Each program has its own eligibility and applicability requirements. The table below shows if a program is available to you, based on your insurance status.
| Rx Advantage Card* for PREVYMIS | Canadian Prescription Savings* for PREVYMIS | PREVYMIS Drug Coupon* | PREVYMIS Patient Assistance Program* | |
| Insured (federal, state or government) | Available | Available | Not Available | Available If Offered by Pharmaceutical Company |
| Insured (Commercial or Private) | Available | Available | Available If Offered by Pharmaceutical Company | Available If Offered by Pharmaceutical Company |
| Uninsured | Available | Available | Not Available | Available If Offered by Pharmaceutical Company |
| Insured but without pharmacy benefit or drug coverage | Available | Available | Not Available | Available If Offered by Pharmaceutical Company |
*This is not insurance.
Are the NowPatient drug savings programs suitable for brand and generic versions of PREVYMIS?
No. Each program has applicability requirements. Please see below
| Rx Advantage Card* for PREVYMIS | Canadian Prescription Savings* for PREVYMIS | PREVYMIS Drug Coupon* | PREVYMIS Patient Assistance Program* | |
| Brand | Yes | Yes | Yes, If Offered by Pharmaceutical Company | Yes, If Offered by Pharmaceutical Company |
| Generic | Yes | Yes | No | No |
*This is not insurance.
If you have Medicare Part D or Medicare Advantage and none of the PREVYMIS savings options are applicable or affordable for me, what can you do?
If you are insured with Medicare and the PREVYMIS drug savings options are not applicable to you and still remain unaffordable, then you can check Medicaid eligibility in your state by following the instructions at HealthCare.gov.
The government site is easy to use and after you have selected your state, it will navigate you to the appropriate contact point to make the application. State Medicaid programs may cover the full cost of your medication.
People who qualify for both Medicare and Medicaid are called ‘dual eligibles’.
If you are denied Medicaid for PREVYMIS, and you are still unable to afford your copay or co-insurance element (for example if you are in the coverage gap or Donut Hole) then you may be eligible for a federal support program like Low Income Subsidy. To be eligible for Low Income Subsidy, you need to be a resident in one of the 50 States or the District of Columbia. You can check eligibility online at SSA Medicare D Extra Help. You can also call Social Security at 1-800-772-1213 (TTY 1-800-325-0778).
I am uninsured or underinsured and none of the PREVYMIS prescription saving options are applicable or affordable for me, what can I do?
If you are uninsured or underinsured (for example, PREVYMIS is not covered by your plan) and the drug savings options are not applicable or still unaffordable, then you can check Medicaid eligibility in your state by following the instructions at HealthCare.gov.
The government site is easy to use and you can select your state and it will navigate you to the appropriate contact point to make the application. State Medicaid programs may cover the full cost of your medication.
If you are denied and all else fails, and if you have been prescribed PREVYMIS for an FDA-approved indication, you can call the pharmaceutical company to see if they have any other assistance programs.
I am commercially or privately insured and none of the PREVYMIS prescription saving options are applicable or affordable for me, what can I do?
If your medication is not covered by your plan, you can you can appeal your insurance company’s decision. Sometimes, a formal appeal can result in the drug being covered if it is deemed medically necessary.
If you cannot afford your copay, then you can check Medicaid eligibility in your state by following the instructions at HealthCare.gov.
However, being privately insured might complicate your eligibility for Medicaid, as having private insurance may be considered in the financial eligibility assessment.
The government site is easy to use and you can select your state and it will navigate you to the appropriate contact point to make the application. If you qualify, state Medicaid may cover the full cost of your medication.
If I have federal, state or commercial insurance and none of the PREVYMIS prescription saving options are applicable or affordable for me, are there any other support organisations that can help me with my co-insurance or copay?
If you have already tried Medicaid and received a denial letter or if you are insured with Medicare and have been denied Low-Income Subsidy, then you can try one of the following organizational support programs:
1. Patient Access Network Foundation (PAN) assistance for PREVYMIS
If you are having trouble paying for your PREVYMIS medication due to unaffordable copays or deductibles, the Patient Access Network Foundation (PAN), may be able to assist you. To qualify for PAN assistance for PREVYMIS you will need to meet one or all of the following criteria:
- Your income is below 400% of the federal poverty level
- PREVYMIS is prescribed for an approved FDA indication
- You live in and receive treatment in the United States or U.S. territories, even if you do not have U.S. citizenship
- You have Medicare insurance coverage that covers PREVYMIS
- If PREVYMIS is listed on PAN’s list of covered medications
You can check the Patient Access Network Foundation Website for more information.
2. HealthWell Foundation Copay Program for PREVYMIS
If you are having trouble paying for your PREVYMIS medication due to unaffordable copays or deductibles, the HealthWell Foundation Copay Program may be able to assist you. To qualify for assistance for PREVYMIS you will need to meet the following criteria:
- You live in and are being treated in the United States
- You are insured and your plan covers PREVYMIS
- If PREVYMIS is listed on the HealthWell Foundation’s list of covered medications
You can check the HealthWell Foundation Website for more information.
3. Patient Advocate Foundation Co-Pay Relief Program for PREVYMIS
Patient Advocate Foundation’s Co-Pay Relief program exists to help reduce the financial distress you or your family may face when paying for your PREVYMIS treatment. If you qualify and can demonstrate the need, the foundation will provide you with direct payment covering co-pays, co-insurance, and deductibles. To qualify for assistance for PREVYMIS you will need to meet the following criteria:
- You must be currently insured and have coverage for PREVYMIS
- You must have a confirmed diagnosis and treatment plan
- You must reside and receive treatment in the United States
- Your Income must fall at or below 300% or 400% of the Federal Poverty Guideline (FPG) with consideration for the Cost of Living Index (COLI) and number in the household
- Applications can also be completed by contacting the program sponsor, toll-free at 866-512-3861.
You can check the Patient Advocate Foundation Website for more information.
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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Our head of US services is Dr. Jamie Winn.
You can lower the cost of your prescription medications using our various savings programs which include drug coupons, savings card and manufacturer-sponsored patient assistance programs.
We do not provide any prescribing services or dispensing services in the United States.
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