Colestid and Valacyclovir drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Colestid (colestipol hydrochloride) and Valacyclovir (valacyclovir hydrochloride). Common drug interactions include blood pressure decreased among females and cytokine release syndrome among males.

The phase IV clinical study analyzes what interactions people have when they take Colestid and Valacyclovir. It is created by eHealthMe based on reports of 29 people who take the same drugs from the FDA, and is updated regularly.

What is Colestid?

Colestid has active ingredients of colestipol hydrochloride. It is often used in irritable bowel syndrome. eHealthMe is studying from 2,233 Colestid users. Check the latest studies of Colestid.

What is Valacyclovir?

Valacyclovir has active ingredients of valacyclovir hydrochloride. It is often used in genital herpes. eHealthMe is studying from 42,107 Valacyclovir users. Check the latest studies of Valacyclovir.



On Jul, 27, 2026

29 people who take Colestid and Valacyclovir together, and have interactions are studied.

Colestid and Valacyclovir drug interactions.

What are the common drug interactions of Colestid and Valacyclovir, by gender? *:

female:

  1. Blood pressure decreased
  2. Chest discomfort
  3. Heart rate decreased
  4. Presyncope
  5. Pulse absent
  6. Supraventricular tachycardia (rapid heart rhythm originating at or above the atrioventricular node)
  7. Troponin increased
  8. Blood pressure increased
  9. Fall
  10. Adjustment disorder with depressed mood

male:

  1. Cytokine release syndrome (immediate complication occurring with the use of anti-t cell antibody infusions)
  2. Confusional state
  3. Loss of consciousness
  4. Pain
  5. Pharyngitis (inflammation of the pharynx, causing a sore throat)
  6. Sinusitis (inflammation of sinus)
  7. Abdominal discomfort
  8. Blood bilirubin increased
  9. Blood potassium decreased
  10. Clostridial infection (infectious conditions by clostridium bacteria)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Clostridial infection (infectious conditions by clostridium bacteria)
  2. Folliculitis (infection of hair root)
  3. Pharyngitis (inflammation of the pharynx, causing a sore throat)
  4. Sinusitis (inflammation of sinus)

30-39:

n/a

40-49:

  1. Adjustment disorder with depressed mood
  2. Anxiety
  3. Dyspnoea (difficult or laboured respiration)
  4. Sjogren's syndrome (a disease that causes dryness in the mouth and eyes)
  5. Spinal stenosis (narrowing of spinal column)
  6. Chest pain
  7. Dizziness
  8. Visual impairment

50-59:

  1. Blood pressure decreased
  2. Chest discomfort
  3. Heart rate decreased
  4. Presyncope
  5. Pulse absent
  6. Supraventricular tachycardia (rapid heart rhythm originating at or above the atrioventricular node)
  7. Troponin increased
  8. Blood pressure increased
  9. Fall
  10. Humerus fracture (injury to the upper arm bone)

60+:

  1. Confusional state
  2. Cytokine release syndrome (immediate complication occurring with the use of anti-t cell antibody infusions)
  3. Glaucoma (increased fluid pressure in the eye with vision loss)
  4. Infestation (the state of being invaded or overrun by parasites)
  5. Loss of consciousness
  6. Osteoarthritis (a joint disease caused by cartilage loss in a joint)
  7. Pain
  8. Platelet count decreased
  9. Pneumonia
  10. Sinusitis (inflammation of sinus)

What are the existing conditions these people have? *

  1. Multiple Myeloma (cancer of the plasma cells): 12 people, 41.38%
  2. Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 12 people, 41.38%
  3. Insomnia (sleeplessness): 6 people, 20.69%
  4. Diarrhea: 6 people, 20.69%
  5. Pain: 5 people, 17.24%
  6. Stress And Anxiety: 4 people, 13.79%
  7. Stomatitis (inflammation of mucous membrane of mouth): 4 people, 13.79%
  8. Pneumonia: 4 people, 13.79%
  9. Neuropathy Peripheral (surface nerve damage): 4 people, 13.79%
  10. Joint Pain: 4 people, 13.79%

* Approximation only. Some reports may have incomplete information.

Do you take Colestid and Valacyclovir?

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Related studies:

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

Browse all drug interactions of Colestid and Valacyclovir:

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 Colestid:

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 Valacyclovir:

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 Colestid 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 Valacyclovir 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 colestipol hydrochloride and valacyclovir hydrochloride (the active ingredients of Colestid and Valacyclovir, respectively), and Colestid and Valacyclovir (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.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.



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