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Diphen and Nardil drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Diphen (diphenhydramine hydrochloride) and Nardil (phenelzine sulfate). Common drug interactions include haemorrhage among females.

The phase IV clinical study analyzes what interactions people have when they take Diphen and Nardil. It is created by eHealthMe based on reports of 9 people who take the same drugs from the FDA, and is updated regularly.

What is Diphen?

Diphen has active ingredients of diphenhydramine hydrochloride. It is often used in insomnia. eHealthMe is studying from 115,432 Diphen users. Check the latest studies of Diphen.

What is Nardil?

Nardil has active ingredients of phenelzine sulfate. It is often used in depression. eHealthMe is studying from 2,327 Nardil users. Check the latest studies of Nardil.

On Apr, 29, 2026

9 people who take Diphen and Nardil together, and have interactions are studied.

Diphen and Nardil drug interactions.

What are the common drug interactions of Diphen and Nardil, by gender? *:

female:

  1. Haemorrhage (bleeding)
  2. Infection parasitic
  3. Choking (mechanical obstruction of the flow of air from the environment into the lungs)
  4. Drug maladministration
  5. Dyspnoea (difficult or laboured respiration)
  6. Face injury
  7. Feeling hot
  8. Fungal skin infection
  9. Head injury
  10. Headache (pain in head)

male:

n/a

What are the common drug interactions of Diphen and Nardil, 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:

n/a

50-59:

  1. Infection parasitic
  2. International normalised ratio increased
  3. Pyrexia (fever)
  4. Tooth loss
  5. Fall
  6. Muscle strain (an injury to a muscle in which the muscle fibres tear)
  7. Arthritis (form of joint disorder that involves inflammation of one or more joints)
  8. Choking (mechanical obstruction of the flow of air from the environment into the lungs)
  9. Face injury
  10. Injury

60+:

  1. Drug maladministration
  2. Dyspnoea (difficult or laboured respiration)
  3. Feeling hot
  4. Head injury
  5. Headache (pain in head)
  6. Labile blood pressure (wildly fluctuating blood pressure)
  7. Limb injury
  8. Palpitations (feelings or sensations that your heart is pounding or racing)
  9. Syncope (loss of consciousness with an inability to maintain postural tone)

* Approximation only. Some reports may have incomplete information.

Do you take Diphen and Nardil?

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

Browse all drug interactions of Diphen and Nardil:

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 Diphen:

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 Nardil:

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 Diphen 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 Nardil 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 phenelzine sulfate (the active ingredients of Diphen and Nardil, respectively), and Diphen and Nardil (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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