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Garlic and Viagra drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Garlic (allium sativum) and Viagra (sildenafil citrate). Common drug interactions include drug ineffective among males.

The phase IV clinical study analyzes what interactions people have when they take Garlic and Viagra. It is created by eHealthMe based on reports of 45 people who take the same drugs from the FDA, and is updated regularly.

What is Garlic?

Garlic has active ingredients of allium sativum. It is often used in heart health. eHealthMe is studying from 2,714 Garlic users. Check the latest studies of Garlic.

What is Viagra?

Viagra has active ingredients of sildenafil citrate. It is often used in erection problems. eHealthMe is studying from 63,865 Viagra users. Check the latest studies of Viagra.

On May, 03, 2026

45 people who take Garlic and Viagra together, and have interactions are studied.

Garlic and Viagra drug interactions.

What are the common drug interactions of Garlic and Viagra, by gender? *:

female:

n/a

male:

  1. Drug ineffective
  2. Cardiac disorder
  3. Upper respiratory tract infection
  4. Vision blurred
  5. Visual acuity reduced (reduced clearness of vision)
  6. Atherosclerosis (disorder of the arteries)
  7. Blood testosterone increased
  8. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  9. Chromatopsia (visual defect in which colourless objects appear to be tinged with colour)
  10. Collapse (sudden functional breakdown)

What are the common drug interactions of Garlic and Viagra, 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:

  1. Drug ineffective
  2. Accident

50-59:

  1. Dementia (madness)
  2. Dementia due to pick's disease (madness due to pick's disease)
  3. Depression
  4. Diabetes mellitus inadequate control
  5. Diarrhoea
  6. Disorientation (disability in which the senses of time, direction, and recognition of people and places)
  7. Encephalopathy (functioning of the brain is affected by some agent or condition)
  8. Eye haemorrhage (bleeding in the eye)
  9. Eye irritation
  10. Gastrointestinal disorder (functional problems of gastrointestinal tract)

60+:

  1. Drug ineffective
  2. Upper respiratory tract infection
  3. Face oedema (swelling of face)
  4. Headache (pain in head)
  5. Pruritus (severe itching of the skin)
  6. Rhinitis (a medical term for irritation and inflammation of the mucous membrane inside the nose)
  7. Tachycardia (a heart rate that exceeds the range of 100 beats/min)
  8. Wheezing (a high-pitched whistling sound made while you breath)
  9. Apnoea (suspension of external breathing)
  10. Arrhythmia (irregular heartbeat)

* Approximation only. Some reports may have incomplete information.

Do you take Garlic and Viagra?

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

Related studies:

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

Browse all drug interactions of Garlic and Viagra:

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 Garlic:

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 Viagra:

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 Garlic 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 Viagra 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

Related publications that referenced our studies

How the study uses the data?

The study uses data from the FDA. It is based on allium sativum and sildenafil citrate (the active ingredients of Garlic and Viagra, respectively), and Garlic and Viagra (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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