Patient support

Need more information about patient assistance for PREVYMIS?

The Merck Access Program for PREVYMIS may be able to help:

  • Identify your insurance benefits
  • Obtain information about out-of-pocket costs
  • Provide information on co-pay assistance options for eligible patients
  • Refer you to the Merck Patient Assistance Program for eligibility determination (provided through the Merck Patient Assistance Program, Inc.)
  • Answer questions about the enrollment form
Learn more

Questions? Contact the Merck Access Program at 855-404-5278 Mon-Fri,
8 AM to 8 PM (ET), to speak to a representative.

Need More Information About Patient Assistance for PREVYMIS® (letermovir)?

Learn how PREVYMIS works to help prevent CMV

Learn how PREVYMIS works to help prevent CMV

Find out if you’re eligible to activate and print a coupon

Find out if you’re eligible to activate and print a coupon

What is PREVYMIS® (letermovir)?

PREVYMIS is a prescription medicine used to help prevent:

 

Cytomegalovirus (CMV) infection and disease in adults who have received an allogeneic hematopoietic stem cell (bone marrow) transplant and who have a high risk for getting CMV infection and disease.

 

It is not known if PREVYMIS is safe and effective in children under 18 years of age.

Important Safety Information

Do not take PREVYMIS if you take pimozide or ergot alkaloids.

 

If you are taking PREVYMIS with cyclosporine, do not take pitavastatin or simvastatin.

 

Before taking PREVYMIS, tell your healthcare provider about all your medical conditions, including if you have kidney or liver problems; are pregnant or plan to become pregnant, since it is not known if PREVYMIS will harm your unborn baby; and if you are breastfeeding or plan to breastfeed, since it is not known if PREVYMIS passes into your breast milk. Talk to your healthcare provider about the best way to feed your baby while taking PREVYMIS.

 

Tell your healthcare provider about all of the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. PREVYMIS may affect the way other medicines work, and other medicines may affect how PREVYMIS works and can cause serious side effects.

 

Know the medicines you take. Keep a list of medicines and show it to your healthcare provider and pharmacist when you get a new medicine. Your healthcare provider or pharmacist will tell you if it is safe to take PREVYMIS with other medicines. Do not start or stop taking another medicine without telling your healthcare provider first.

 

The most common side effects of PREVYMIS include nausea, diarrhea, vomiting, swelling in your arms and legs, cough, headache, tiredness, and stomach (abdominal) pain. These are not all the possible side effects of PREVYMIS.

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.

 

Please read the accompanying Patient Information for PREVYMIS, and discuss it with your health care provider.

 

The Physician Prescribing Information also is available.

What is PREVYMIS® (letermovir)?

PREVYMIS is a prescription medicine used to help prevent:

 

Cytomegalovirus (CMV) infection and disease in adults who have received an allogeneic hematopoietic stem cell (bone marrow) transplant and who have a high risk for getting CMV infection and disease.

 

It is not known if PREVYMIS is safe and effective in children under 18 years of age.

PREVYMIS is a prescription medicine used to help prevent:
 
Cytomegalovirus (CMV) infection and disease in adults who have received an allogeneic hematopoietic stem cell (bone marrow) transplant

PREVYMIS is a prescription medicine used to help prevent:

 

Cytomegalovirus (CMV) infection and disease in adults who have received an allogeneic hematopoietic stem cell (bone marrow) transplant and who have a high risk for getting CMV infection and disease.

Important Safety Information for PREVYMIS® (letermovir)

Do not take PREVYMIS if you take pimozide or ergot alkaloids.

 

If you are taking PREVYMIS with cyclosporine, do not take pitavastatin or simvastatin.

 

Before taking PREVYMIS, tell your healthcare provider about all your medical conditions, including if you have kidney or liver problems; are pregnant or plan to become pregnant, since it is not known if PREVYMIS will harm your unborn baby; and if you are breastfeeding or plan to breastfeed, since it is not known if PREVYMIS passes into your breast milk. Talk to your healthcare provider about the best way to feed your baby while taking PREVYMIS.

 

Tell your healthcare provider about all of the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. PREVYMIS may affect the way other medicines work, and other medicines may affect how PREVYMIS works and can cause serious side effects.

 

Know the medicines you take. Keep a list of medicines and show it to your healthcare provider and pharmacist when you get a new medicine. Your healthcare provider or pharmacist will tell you if it is safe to take PREVYMIS with other medicines. Do not start or stop taking another medicine without telling your healthcare provider first.

 

The most common side effects of PREVYMIS include nausea, diarrhea, vomiting, swelling in your arms and legs, cough, headache, tiredness, and stomach (abdominal) pain. These are not all the possible side effects of PREVYMIS.

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.

 

Please read the accompanying Patient Information for PREVYMIS, and discuss it with your health care provider.

 

The Physician Prescribing Information also is available.

Do not take PREVYMIS if you take pimozide or ergot alkaloids.

Do not take PREVYMIS if you take pimozide or ergot alkaloids.

 

If you are taking PREVYMIS with cyclosporine, do not take pitavastatin or simvastatin.

 

Before taking PREVYMIS, tell your healthcare provider about all your medical conditions, including if you have kidney or liver problems; are pregnant or plan