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

Summary:

Drug interactions are reported among people who take Flexeril (cyclobenzaprine hydrochloride) and Cefadroxil (cefadroxil/cefadroxil hemihydrate). Common drug interactions include post procedural infection among females and arthritis among males.

The phase IV clinical study analyzes what interactions people have when they take Flexeril and Cefadroxil. It is created by eHealthMe based on reports of 30 people who take the same drugs from the FDA, and is updated regularly.

What is Flexeril?

Flexeril has active ingredients of cyclobenzaprine hydrochloride. It is often used in muscle spasms. eHealthMe is studying from 38,308 Flexeril users. Check the latest studies of Flexeril.

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 Aug, 11, 2026

30 people who take Flexeril and Cefadroxil together, and have interactions are studied.

Flexeril and Cefadroxil drug interactions.

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

female:

Post procedural infection
Progesterone receptor assay positive
Skin bacterial infection
Weight increased
Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Arthritis infective (purulent invasion of a joint by an infectious agent which produces arthritis)
Breast cancer stage iii
Breast fibrosis (the thickening and scarring of connective tissue, usually as a result of injury in breast)
Breast inflammation

male:

Arthritis (form of joint disorder that involves inflammation of one or more joints)
Hyperlipidaemia (presence of excess lipids in the blood)
Breast cyst
Breast pain
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Cardiac failure congestive
Cervix carcinoma (cancer of cervix)
Chest pain
Chronic kidney disease
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Alopecia (absence of hair from areas of the body)
Anaemia (lack of blood)
Arthralgia (joint pain)
Brain compression
Breast cancer stage iii
Breast fibrosis (the thickening and scarring of connective tissue, usually as a result of injury in breast)
Breast inflammation
Cerebellar infarction (impaired blood circulation to cerebellum)
Dental caries
Dermoid cyst (an abnormal growth (teratoma) containing epidermis, hair follicles, and sebaceous glands)

30-39:

Apathy
Arthritis (form of joint disorder that involves inflammation of one or more joints)
Breast cyst
Breast pain
Cervix carcinoma (cancer of cervix)
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)
Depression
Fibromyalgia (a long-term condition which causes pain all over the body)
Hyperlipidaemia (presence of excess lipids in the blood)
Hypertension (high blood pressure)

40-49:

Oral pain
Periodontitis (inflammation of the tissue around the teeth)
Renal failure (kidney dysfunction)
Alopecia (absence of hair from areas of the body)
Arthralgia (joint pain)
Dysgeusia (disorder of the sense of taste)
Fatigue (feeling of tiredness)
Injury
Leukocytosis (increased white blood cells)
Myalgia (muscle pain)

50-59:

Chronic kidney disease
Malaise (a feeling of general discomfort or uneasiness)
Migraine (headache)
Renal failure (kidney dysfunction)

60+:

Arthritis (form of joint disorder that involves inflammation of one or more joints)
Fatigue (feeling of tiredness)
Anxiety
Arthritis infective (purulent invasion of a joint by an infectious agent which produces arthritis)
Decreased activity
Emotional distress
Mobility decreased (ability to move is reduced)
Osteopenia (a condition where bone mineral density is lower than normal)
Pain
Quality of life decreased

What are the existing conditions these people have? *

Eczema (patches of skin become rough and inflamed, with itching and bleeding blisters): 11 people, 36.67%
Oral Disorder (mouth disease): 8 people, 26.67%
Pain: 4 people, 13.33%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 4 people, 13.33%
Primary Myelofibrosis (primary disorder of the bone marrow): 3 people, 10.00%
Polymyalgia Rheumatica (pain in many muscles): 3 people, 10.00%
Nausea (feeling of having an urge to vomit): 3 people, 10.00%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 3 people, 10.00%
Stress And Anxiety: 2 people, 6.67%
High Blood Pressure: 2 people, 6.67%

* Approximation only. Some reports may have incomplete information.

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