Opsumit and Valcyte drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Opsumit (macitentan) and Valcyte (valganciclovir hydrochloride). Common drug interactions include blood creatinine increased among females and agranulocytosis among males.

The phase IV clinical study analyzes what interactions people have when they take Opsumit and Valcyte. It is created by eHealthMe based on reports of 14 people who take the same drugs from the FDA, and is updated regularly.

What is Opsumit?

Opsumit has active ingredients of macitentan. eHealthMe is studying from 67,926 Opsumit users. Check the latest studies of Opsumit.

What is Valcyte?

Valcyte has active ingredients of valganciclovir hydrochloride. It is often used in cmv - immunocompromised host. eHealthMe is studying from 6,409 Valcyte users. Check the latest studies of Valcyte.



On Aug, 10, 2026

14 people who take Opsumit and Valcyte together, and have interactions are studied.

Opsumit and Valcyte drug interactions.

What are the common drug interactions of Opsumit and Valcyte, by gender? *:

female:

  1. Blood creatinine increased
  2. Cellulitis (infection under the skin)
  3. Foot fracture
  4. Neuropathic arthropathy (a progressive destruction of bone and joints)
  5. Osteomyelitis (infection of bone)
  6. Peripheral swelling
  7. Purpura (purplish discoloration of the skin)
  8. Renal transplant
  9. Vasculitis (inflammation of a blood vessel or blood vessels)
  10. Cervix enlargement

male:

  1. Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection)
  2. Pain
  3. Supraventricular tachycardia (rapid heart rhythm originating at or above the atrioventricular node)
  4. Liver transplant
  5. Lung transplant
  6. Nausea (feeling of having an urge to vomit)
  7. Vomiting
  8. Abdominal distension
  9. Adverse drug reaction
  10. Arthralgia (joint pain)

What are the common drug interactions of Opsumit and Valcyte, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

n/a

50-59:

  1. Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection)
  2. Liver transplant
  3. Pneumonia staphylococcal (pneumonia staphylococcal infections are usually caused by the organism staphylococcus aureus)

60+:

  1. Pain
  2. Atrial flutter (an abnormal heart rhythm that occurs in the atria of the heart)
  3. Renal transplant
  4. Respiratory depression (respiration has a rate below 12 breaths)
  5. Supraventricular tachycardia (rapid heart rhythm originating at or above the atrioventricular node)
  6. Cellulitis (infection under the skin)
  7. Dyspnoea (difficult or laboured respiration)
  8. Fatigue (feeling of tiredness)
  9. Foot fracture
  10. Lung transplant

What are the existing conditions these people have? *

  1. Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 6 people, 42.86%
  2. Cytomegalovirus Infection: 4 people, 28.57%
  3. Respiratory Depression (respiration has a rate below 12 breaths): 3 people, 21.43%
  4. Pulmonary Hypertension (increase in blood pressure in the lung artery): 1 person, 7.14%
  5. Cor Pulmonale Chronic (long lasting enlargement of the right ventricle of the heart): 1 person, 7.14%
  6. Cor Pulmonale (enlargement of the right ventricle of the heart): 1 person, 7.14%
  7. Chronic Kidney Disease: 1 person, 7.14%

* Approximation only. Some reports may have incomplete information.

Do you take Opsumit and Valcyte?

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Opsumit and Valcyte:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Opsumit:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all side effects of Valcyte:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Opsumit and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Valcyte and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

How the study uses the data?

The study uses data from the FDA. It is based on macitentan and valganciclovir hydrochloride (the active ingredients of Opsumit and Valcyte, respectively), and Opsumit and Valcyte (the brand names). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

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