Benadryl and Nicorette drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Benadryl (diphenhydramine hydrochloride) and Nicorette (nicotine polacrilex). Common drug interactions include somnolence among females and chronic kidney disease among males.

The phase IV clinical study analyzes what interactions people have when they take Benadryl and Nicorette. It is created by eHealthMe based on reports of 34 people who take the same drugs from the FDA, and is updated regularly.

What is Benadryl?

Benadryl has active ingredients of diphenhydramine hydrochloride. It is often used in allergies. eHealthMe is studying from 104,954 Benadryl users. Check the latest studies of Benadryl.

What is Nicorette?

Nicorette has active ingredients of nicotine polacrilex. It is often used in quit smoking. eHealthMe is studying from 18,484 Nicorette users. Check the latest studies of Nicorette.



On Jul, 07, 2026

34 people who take Benadryl and Nicorette together, and have interactions are studied.

Benadryl and Nicorette drug interactions.

What are the common drug interactions of Benadryl and Nicorette, by gender? *:

female:

  1. Somnolence (a state of near-sleep, a strong desire for sleep)
  2. Therapeutic response decreased (less preventive response)
  3. Wound
  4. Asthenia (weakness)
  5. Pain
  6. Oral discomfort (pain or irritation in mouth)
  7. Arthritis (form of joint disorder that involves inflammation of one or more joints)
  8. Dizziness
  9. Dry skin
  10. Fatigue (feeling of tiredness)

male:

  1. Chronic kidney disease
  2. Bipolar ii disorder (characterized by at least one episode of hypomania and at least one episode of major depression)
  3. Urinary tract infection
  4. Abdominal compartment syndrome (increased pressure in abdomen)
  5. Atrial flutter (an abnormal heart rhythm that occurs in the atria of the heart)
  6. Bacterial infection
  7. Constipation
  8. Gastric ulcer (stomach ulcer)
  9. Haemodynamic instability (disturbances in the blood movement in our body)
  10. Hepatic failure (liver failure)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Clostridium difficile colitis (inflammation of colon by clostridium difficile bacteria infection)
  2. Renal failure (kidney dysfunction)
  3. Abdominal compartment syndrome (increased pressure in abdomen)
  4. Atrial flutter (an abnormal heart rhythm that occurs in the atria of the heart)
  5. Bacterial infection
  6. Gastric ulcer (stomach ulcer)
  7. Haemodynamic instability (disturbances in the blood movement in our body)
  8. Hepatic failure (liver failure)
  9. Klebsiella bacteraemia (klebsiella bacteria in blood after infection to lungs)
  10. Lactic acidosis (low ph in body tissues)

30-39:

  1. Chronic kidney disease
  2. Gait disturbance
  3. Lower respiratory tract infection
  4. Muscle spasms (muscle contraction)
  5. Musculoskeletal stiffness (stiffness of the body's muscles, joints, tendons, ligaments and nerves)
  6. Renal failure (kidney dysfunction)

40-49:

  1. Skin disorder (skin disease)
  2. Sleep apnoea syndrome (a sleep-related disorder in which the effort to breathe is diminished or absent)
  3. Thermal burn (burn by heat)
  4. Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
  5. Cerebrovascular accident (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)
  6. Completed suicide (act of taking one's own life)
  7. Contusion (a type of hematoma of tissue in which capillaries)
  8. Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body)
  9. Dizziness
  10. Dysstasia (difficulty in standing)

50-59:

  1. Staphylococcal infection (an infection with staphylococcus bacteria)
  2. Bipolar ii disorder (characterized by at least one episode of hypomania and at least one episode of major depression)
  3. Chronic kidney disease
  4. Constipation
  5. Dehydration (dryness resulting from the removal of water)
  6. Generalised anxiety disorder (excessive, uncontrollable, unexplained and often irrational worry)
  7. Hypertension (high blood pressure)
  8. Jaundice cholestatic
  9. Major depression (a mood state that goes well beyond temporarily feeling sad or blue. it is a serious medical illness that affects one's thoughts, feelings)
  10. Nephrolithiasis (calculi in the kidneys)

60+:

  1. Blood creatinine increased
  2. Hypotension (abnormally low blood pressure)
  3. Dyspnoea (difficult or laboured respiration)
  4. Mania (a state of abnormally elevated or irritable mood)
  5. Nausea (feeling of having an urge to vomit)
  6. Oral pain
  7. Pneumonia
  8. Asthenia (weakness)
  9. Cellulitis (infection under the skin)
  10. Chest pain

What are the existing conditions these people have? *

  1. Insomnia (sleeplessness): 6 people, 17.65%
  2. High Blood Pressure: 6 people, 17.65%
  3. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 5 people, 14.71%
  4. Multiple Allergies (allergy to multiple agents): 5 people, 14.71%
  5. Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 4 people, 11.76%
  6. Blood Pressure Abnormal: 4 people, 11.76%
  7. Diverticulitis (digestive disease which involves the formation of pouches (diverticula) within the bowel wall): 4 people, 11.76%
  8. Gastric Ulcer (stomach ulcer): 4 people, 11.76%
  9. Attention Deficit Hyperactivity Disorder (a chronic condition including attention difficulty, hyperactivity, and impulsiveness): 4 people, 11.76%
  10. Pain: 3 people, 8.82%

* Approximation only. Some reports may have incomplete information.

Do you take Benadryl and Nicorette?

- 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 Benadryl and Nicorette:

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 Benadryl:

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 Nicorette:

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 Benadryl 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 Nicorette 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 diphenhydramine hydrochloride and nicotine polacrilex (the active ingredients of Benadryl and Nicorette, respectively), and Benadryl and Nicorette (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.



Recent studies on eHealthMe: