Tylenol and Tryptophan drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Tylenol (acetaminophen) and Tryptophan (l - tryptophan). Common drug interactions include cystitis among females and drug ineffective among males.

The phase IV clinical study analyzes what interactions people have when they take Tylenol and Tryptophan. It is created by eHealthMe based on reports of 56 people who take the same drugs from the FDA, and is updated regularly.

What is Tylenol?

Tylenol has active ingredients of acetaminophen. It is often used in pain. eHealthMe is studying from 222,309 Tylenol users. Check the latest studies of Tylenol.

What is Tryptophan?

Tryptophan has active ingredients of l - tryptophan. eHealthMe is studying from 700 Tryptophan users. Check the latest studies of Tryptophan.

On Jul, 08, 2026

56 people who take Tylenol and Tryptophan together, and have interactions are studied.

Tylenol and Tryptophan drug interactions.

What are the common drug interactions of Tylenol and Tryptophan, by gender? *:

female:

Cystitis (inflammation of the wall of the bladder)
Influenza
Osteoarthritis (a joint disease caused by cartilage loss in a joint)
Viral pharyngitis (inflammation of the throat or pharynx caused by viral infection)
Upper respiratory tract infection
Cell death
Cough
Crohn's disease (a condition that causes inflammation of the gastrointestinal tract)
Fall
Gastroenteritis viral (inflammation of stomach and intestine caused by virus infection)

male:

Drug ineffective
Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
Barrett's oesophagus (barrett's oesophagus is a disorder in which the lining of the oesophagus (the tube that carries food from the throat to the stomach) is damaged by stomach acid and changed to a lining similar to that of the stomach)

What are the common drug interactions of Tylenol and Tryptophan, 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:

Agitation (state of anxiety or nervous excitement)
Anxiety
Burning sensation
Diarrhoea
Disturbance in attention
Drug hypersensitivity
Dysgeusia (disorder of the sense of taste)
Dyskinesia (abnormality or impairment of voluntary movement)
Eye movement disorder
Genital burning sensation

50-59:

Influenza like illness
Asthma
Drug hypersensitivity
Hypotension (abnormally low blood pressure)
Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)
Pruritus (severe itching of the skin)
Drug ineffective
Epistaxis (bleed from the nose)
Eye pain
Malaise (a feeling of general discomfort or uneasiness)

60+:

Cough
Fall
Decreased appetite
Progressive multifocal leukoencephalopathy (rapidly progressive neuromuscular disease caused by opportunistic infection of brain cells)
Unresponsive to stimuli
Urinary tract infection
Weight decreased
Pneumonia
Poor venous access
Sinus congestion (blockage of sinus)

What are the existing conditions these people have? *

Immunodeficiency Common Variable: 7 people, 12.50%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 5 people, 8.93%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 5 people, 8.93%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 3 people, 5.36%

* Approximation only. Some reports may have incomplete information.

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