Arginine hcl side effects, by duration, gender and age (a phase IV clinical study of FDA data)

Summary:

Side effects are reported by people who take Arginine hcl (l - arginine). Common side effects include alopecia among females and abdominal pain upper among males.

The phase IV clinical study is created by eHealthMe based on 75 reports from the FDA, and is updated regularly.

What is Arginine Hcl?

Arginine hcl has active ingredients of l - arginine. eHealthMe is studying from 118 Arginine hcl users. Check the latest studies of Arginine hcl.

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On Aug, 22, 2026

75 people who take Arginine Hcl and have side effects are studied.

Arginine hcl side effects.

What are the common side effects of Arginine Hcl, by gender? *:

female:

  1. Alopecia (absence of hair from areas of the body)
  2. Drug hypersensitivity
  3. Acidosis (build-up of carbon dioxide in the blood)
  4. Anaemia (lack of blood)
  5. Angina pectoris (chest pain due to ischemia of the heart muscle)
  6. Aortic valve incompetence
  7. Back pain
  8. Blood urea increased
  9. Chest pain
  10. Death

male:

  1. Abdominal pain upper
  2. Arthralgia (joint pain)
  3. Adrenal insufficiency (a condition in which the adrenal glands do not produce adequate amounts of steroids)
  4. Alopecia (absence of hair from areas of the body)
  5. Anaphylactic reaction (serious allergic reaction)
  6. Arthropathy
  7. Balance disorder
  8. Blood pressure abnormal
  9. Blood testosterone decreased
  10. Cholestasis (a condition where bile cannot flow from the liver to the duodenum)

What are the common side effects of Arginine Hcl, by age (0-1 to 60+) *:

0-1:

  1. Blood urea increased
  2. Myelosuppression (a decrease in the production of blood cells)

2-9:

  1. Diarrhoea
  2. Langerhans' cell histiocytosis

10-19:

  1. Acne (skin problems that cause pimples)
  2. Anaphylactic reaction (serious allergic reaction)
  3. Diarrhoea
  4. Melas syndrome (melas (myopathy, encephalopathy, lactic acidosis, and stroke-like episodes) is a progressive neurodegenerative disorder)
  5. Seizure (abnormal excessive or synchronous neuronal activity in the brain)

20-29:

  1. Abnormal dreams
  2. Acidosis (build-up of carbon dioxide in the blood)

30-39:

  1. Anxiety
  2. Drug hypersensitivity
  3. Headache (pain in head)
  4. Hypersensitivity

40-49:

  1. Anaemia (lack of blood)
  2. Angina pectoris (chest pain due to ischemia of the heart muscle)
  3. Back pain
  4. Chest pain
  5. Cholestasis (a condition where bile cannot flow from the liver to the duodenum)

50-59:

  1. Abdominal pain upper
  2. Arthralgia (joint pain)
  3. Adrenal insufficiency (a condition in which the adrenal glands do not produce adequate amounts of steroids)
  4. Drug hypersensitivity
  5. Drug ineffective
  6. Hypersensitivity

60+:

  1. Alopecia (absence of hair from areas of the body)
  2. Breast pain
  3. Nausea (feeling of having an urge to vomit)
  4. Acute respiratory failure
  5. Aortic valve incompetence
  6. Arthralgia (joint pain)
  7. Balance disorder
  8. Chronic kidney disease
  9. Contusion (a type of hematoma of tissue in which capillaries)
  10. Deafness bilateral

What are the common side effects of Arginine Hcl, by the time people have been on the drug (< 1 month to 10+ years)? *:

< 1 month:

  1. Neutropenia (an abnormally low number of neutrophils)
  2. Myelosuppression (a decrease in the production of blood cells)
  3. Seizure (abnormal excessive or synchronous neuronal activity in the brain)

1 - 6 months:

n/a

6 - 12 months:

n/a

1 - 2 years:

n/a

2 - 5 years:

n/a

5 - 10 years:

n/a

10+ years:

n/a

not specified:

  1. Headache (pain in head)
  2. Hypersensitivity
  3. Nausea (feeling of having an urge to vomit)
  4. Abdominal discomfort
  5. Abnormal dreams
  6. Acidosis (build-up of carbon dioxide in the blood)
  7. Acne (skin problems that cause pimples)
  8. Acute respiratory failure
  9. Adrenal insufficiency (a condition in which the adrenal glands do not produce adequate amounts of steroids)
  10. Anaemia (lack of blood)

* Approximation only. Some reports may have incomplete information.

Do you take Arginine hcl?

- Personalize this study to your gender and age
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

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.



How the study uses the data?

The study is based on l - arginine (the active ingredients of Arginine hcl) and Arginine hcl (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered.

Related studies are listed below in case you need more information:

Alternative drugs to, pros and cons of Arginine hcl:

All Arginine hcl side effects 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

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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