Mucomyst and Pepcid drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Mucomyst (acetylcysteine) and Pepcid (famotidine). Common drug interactions include anxiety among females and death among males.

The phase IV clinical study analyzes what interactions people have when they take Mucomyst and Pepcid. It is created by eHealthMe based on reports of 63 people who take the same drugs from the FDA, and is updated regularly.

What is Mucomyst?

Mucomyst has active ingredients of acetylcysteine. eHealthMe is studying from 1,835 Mucomyst users. Check the latest studies of Mucomyst.

What is Pepcid?

Pepcid has active ingredients of famotidine. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 55,774 Pepcid users. Check the latest studies of Pepcid.

On Jul, 26, 2026

63 people who take Mucomyst and Pepcid together, and have interactions are studied.

What are the common drug interactions of Mucomyst and Pepcid, by gender? *:

female:

Anxiety
Diarrhoea
Fear
Haematoma (collection of blood outside the blood vessels)
Pyrexia (fever)
Renal impairment (severely reduced kidney function)
Renal injury (kidney injury)
Septic shock (shock due to blood infection)
Stress
Acinetobacter infection (infection by group of bacteria commonly found in soil and water)

male:

Death
Renal failure (kidney dysfunction)
Fear
Hypertension (high blood pressure)
Infection
Injury
Organ failure
Pain
Pneumonia
Renal injury (kidney injury)

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

0-1:

Bronchiolitis (inflammation of the membranes lining the bronchioles in lungs)
Dysphagia (a condition in which swallowing is difficult or painful)
Increased bronchial secretion
Respiratory failure (inadequate gas exchange by the respiratory system)

2-9:

Hypertension (high blood pressure)
Infection
Acinetobacter infection (infection by group of bacteria commonly found in soil and water)
Diarrhoea
Diarrhoea haemorrhagic (bloody diarrhoea)
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)
Haematoma (collection of blood outside the blood vessels)
Pleural effusion (water on the lungs)
Pyrexia (fever)
Septic shock (shock due to blood infection)

10-19:

n/a

20-29:

Blood potassium decreased
Disseminated intravascular coagulation (systemic activation of blood coagulation)
Loin pain (pain originates from kidney)
Nephritis (inflammation of the nephrons in the kidneys)
Pyelonephritis (inflammation of kidney caused by bacteria)
Pyrexia (fever)
White blood cells urine positive

30-39:

n/a

40-49:

Angina pectoris (chest pain due to ischemia of the heart muscle)
Blood pressure decreased
Haematoma (collection of blood outside the blood vessels)
Heart rate increased
Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)

50-59:

Cardiac disorder
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)
Death
Depression
Organ failure
Emotional distress
Stress
Adrenal insufficiency (a condition in which the adrenal glands do not produce adequate amounts of steroids)
Agitation (state of anxiety or nervous excitement)
Anaemia (lack of blood)

60+:

Pneumonia
Renal failure (kidney dysfunction)
Syncope (loss of consciousness with an inability to maintain postural tone)
Wound infection staphylococcal
Acidosis (build-up of carbon dioxide in the blood)
Acute respiratory failure
Anaemia (lack of blood)
Anxiety
Blood creatinine increased
Cardiac arrest

What are the existing conditions these people have? *

Pain: 12 people, 19.05%
Hypotension (abnormally low blood pressure): 10 people, 15.87%
Nausea (feeling of having an urge to vomit): 8 people, 12.70%
High Blood Pressure: 8 people, 12.70%
Constipation: 8 people, 12.70%
Insomnia (sleeplessness): 7 people, 11.11%
Infection: 7 people, 11.11%
Indigestion: 7 people, 11.11%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 6 people, 9.52%
Osteoporosis (bones weak and more likely to break): 5 people, 7.94%

* Approximation only. Some reports may have incomplete information.

Do you take Mucomyst and Pepcid?

- 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