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

Summary:

Drug interactions are reported among people who take Minocycline hydrochloride (minocycline hydrochloride) and Valacyclovir (valacyclovir hydrochloride). Common drug interactions include hospitalisation among females and pancytopenia among males.

The phase IV clinical study analyzes what interactions people have when they take Minocycline hydrochloride and Valacyclovir. It is created by eHealthMe based on reports of 23 people who take the same drugs from the FDA, and is updated regularly.

What is Minocycline hydrochloride?

Minocycline hydrochloride has active ingredients of minocycline hydrochloride. It is often used in acne. eHealthMe is studying from 5,255 Minocycline hydrochloride users. Check the latest studies of Minocycline hydrochloride.

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, 21, 2026

23 people who take Minocycline hydrochloride and Valacyclovir together, and have interactions are studied.

Minocycline hydrochloride and Valacyclovir drug interactions.

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

female:

  1. Hospitalisation
  2. Sinusitis (inflammation of sinus)
  3. Abdominal pain
  4. Hepatic vein thrombosis (obstruction in the veins of the liver caused by a blood clot)
  5. Hunger
  6. Limb injury
  7. Muscle rupture (tear in muscle)
  8. Nocturia (the need to get up in the night to urinate)
  9. Oral herpes (viral infection of mouth)
  10. Peripheral coldness

male:

  1. Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
  2. Cellulitis (infection under the skin)
  3. Enteritis infectious (infection with feline parvovirus (fpv), also known as feline panleucopenia virus)
  4. Febrile neutropenia (fever with reduced white blood cells)
  5. Gastrointestinal disorder (functional problems of gastrointestinal tract)
  6. Haemoglobin decreased
  7. Hyperplasia (enlargement of an organ or tissue)
  8. Ileus (a painful obstruction of the ileum or other part of the intestine)
  9. White blood cell count decreased

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

0-1:

n/a

2-9:

n/a

10-19:

  1. Brain abscess
  2. Cystitis haemorrhagic (blood in the urine and painful voiding)
  3. Dyspnoea (difficult or laboured respiration)
  4. Fluid retention (an abnormal accumulation of fluid in the blood)
  5. Infection
  6. Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
  7. Pneumonia
  8. Respiratory failure (inadequate gas exchange by the respiratory system)
  9. Tachycardia (a heart rate that exceeds the range of 100 beats/min)
  10. Arthritis infective (purulent invasion of a joint by an infectious agent which produces arthritis)

20-29:

  1. Dermatitis atopic (inflammatory, chronically relapsing, non-contagious and pruritic skin disorder)
  2. Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
  3. Erythema (redness of the skin)
  4. Erythema multiforme (a type of hypersensitivity reaction)
  5. Lichenification (thickening and hardening of the skin)
  6. Lung transplant
  7. Pain in extremity
  8. Pyrexia (fever)
  9. Scab (a hard coating on the skin formed during the wound healing)
  10. Skin erosion (a discontinuity of the skin)

30-39:

  1. Confusional state
  2. Suicide attempt
  3. Vitamin d decreased

40-49:

  1. Sinusitis (inflammation of sinus)
  2. Abdominal pain
  3. Hepatic vein thrombosis (obstruction in the veins of the liver caused by a blood clot)
  4. Hospitalisation
  5. Hunger
  6. Limb injury
  7. Muscle rupture (tear in muscle)
  8. Nocturia (the need to get up in the night to urinate)
  9. Oral herpes (viral infection of mouth)
  10. Peripheral coldness

50-59:

  1. Melanosis (a disorder of pigmentation of the wall of the colon)

60+:

  1. Abscess (pus)
  2. Arthralgia (joint pain)
  3. Bladder disorder
  4. Eye infection
  5. Eye pain
  6. Intraocular pressure increased
  7. Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
  8. Peripheral swelling

What are the existing conditions these people have? *

  1. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 8 people, 34.78%
  2. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 8 people, 34.78%
  3. Drowsiness: 6 people, 26.09%
  4. Pain: 5 people, 21.74%
  5. Sedation: 3 people, 13.04%
  6. Graft Versus Host Disease (the donated bone marrow or stem cells view the recipient's body as foreign, and the donated cells/bone marrow attack the body): 3 people, 13.04%
  7. Bacterial Infection: 3 people, 13.04%
  8. Constipation: 3 people, 13.04%
  9. Cytomegalovirus Infection: 3 people, 13.04%
  10. Depression: 3 people, 13.04%

* Approximation only. Some reports may have incomplete information.

Do you take Minocycline hydrochloride 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 Minocycline hydrochloride 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 Minocycline hydrochloride:

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 Minocycline hydrochloride 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 minocycline hydrochloride and valacyclovir hydrochloride (the active ingredients of Minocycline hydrochloride and Valacyclovir, respectively), and Minocycline hydrochloride 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.

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