Trimethoprim and Cefadroxil drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Trimethoprim (trimethoprim) and Cefadroxil (cefadroxil/cefadroxil hemihydrate). Common drug interactions include alanine aminotransferase increased among females and asthenia among males.

The phase IV clinical study analyzes what interactions people have when they take Trimethoprim and Cefadroxil. It is created by eHealthMe based on reports of 14 people who take the same drugs from the FDA, and is updated regularly.

What is Trimethoprim?

Trimethoprim has active ingredients of trimethoprim. It is often used in urinary tract infection. eHealthMe is studying from 8,213 Trimethoprim users. Check the latest studies of Trimethoprim.

What is Cefadroxil?

Cefadroxil has active ingredients of cefadroxil/cefadroxil hemihydrate. It is often used in acne. eHealthMe is studying from 1,897 Cefadroxil users. Check the latest studies of Cefadroxil.

On Jul, 07, 2026

14 people who take Trimethoprim and Cefadroxil together, and have interactions are studied.

Trimethoprim and Cefadroxil drug interactions.

What are the common drug interactions of Trimethoprim and Cefadroxil, by gender? *:

female:

Alanine aminotransferase increased
Blood alkaline phosphatase increased
Blood amylase increased
Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection)
Anxiety
Chest pain
Costochondritis (chest wall pain)
Dyspnoea (difficult or laboured respiration)
Injury
Pain

male:

Asthenia (weakness)
Bradycardia (abnormally slow heart action)
Thirst decreased
Arteriosclerosis (thickening and hardening of arteries)
Back pain
Blepharospasm (any abnormal contraction or twitch of the eyelid)
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Cardiac failure congestive
Chest pain
Coronary artery disease (plaque building up along the inner walls of the arteries of the heart, which narrows the arteries and restricts blood flow to the heart)

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

0-1:

n/a

2-9:

n/a

10-19:

Anxiety
Chest pain
Costochondritis (chest wall pain)
Dyspnoea (difficult or laboured respiration)
Injury
Pain
Pneumonia
Pulmonary embolism (blockage of the main artery of the lung)

20-29:

n/a

30-39:

Malaise (a feeling of general discomfort or uneasiness)
Nausea (feeling of having an urge to vomit)
Panic disorder
Thirst decreased
Asthenia (weakness)
Bradycardia (abnormally slow heart action)
Constipation
Decreased appetite
Dehydration (dryness resulting from the removal of water)
Dyspnoea (difficult or laboured respiration)

40-49:

Drug effect decreased

50-59:

n/a

60+:

Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection)
Implant infection (infection at implant site)

What are the existing conditions these people have? *

Pneumocystis Jiroveci Pneumonia (fungal infection of the lungs): 6 people, 42.86%
Gastritis (inflammation of stomach): 6 people, 42.86%
Conjunctivitis (pink eye): 6 people, 42.86%
Bronchiectasis (abnormal widening of the bronchi or their branches, causing a risk of infection): 6 people, 42.86%
Premenstrual Syndrome: 2 people, 14.29%
Pain: 2 people, 14.29%
Nausea (feeling of having an urge to vomit): 2 people, 14.29%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 7.14%

* Approximation only. Some reports may have incomplete information.

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