Cefazolin and Efavirenz drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Cefazolin (cefazolin sodium) and Efavirenz (efavirenz). Common drug interactions include pancytopenia among females and anhedonia among males.

The phase IV clinical study analyzes what interactions people have when they take Cefazolin and Efavirenz. It is created by eHealthMe based on reports of 19 people who take the same drugs from the FDA, and is updated regularly.

What is Cefazolin?

Cefazolin has active ingredients of cefazolin sodium. It is often used in infection. eHealthMe is studying from 15,157 Cefazolin users. Check the latest studies of Cefazolin.

What is Efavirenz?

Efavirenz has active ingredients of efavirenz. It is often used in hiv infection. eHealthMe is studying from 15,501 Efavirenz users. Check the latest studies of Efavirenz.

On Jul, 16, 2026

19 people who take Cefazolin and Efavirenz together, and have interactions are studied.

Cefazolin and Efavirenz drug interactions.

What are the common drug interactions of Cefazolin and Efavirenz, by gender? *:

female:

Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)

male:

Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Osteonecrosis (death of bone)
Osteoporosis (bones weak and more likely to break)
Perianal abscess
Renal failure (kidney dysfunction)
Renal injury (kidney injury)
Renal mass (mass in kidney)
Skeletal injury (bone and supporting muscle injury)
Tooth loss

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Cytomegalovirus infection
Gastrointestinal disorder (functional problems of gastrointestinal tract)

40-49:

Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Chronic kidney disease
Emotional distress
Pain
Depression
Appetite disorder (abnormal eating habits)
Asthenia (weakness)
Back pain
Diarrhoea

50-59:

n/a

60+:

Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Wrist fracture
Ankle fracture
Bone density decreased
Upper limb fracture
Emotional distress
Osteopenia (a condition where bone mineral density is lower than normal)
Pain
Clavicle fracture

What are the existing conditions these people have? *

High Blood Cholesterol: 3 people, 15.79%
Neuropathy Peripheral (surface nerve damage): 3 people, 15.79%
Eye Pain: 3 people, 15.79%
Hyperlipidaemia (presence of excess lipids in the blood): 3 people, 15.79%
Analgesic Effect: 3 people, 15.79%
Orchitis (inflammation of the testes): 3 people, 15.79%
Pain: 3 people, 15.79%
Fungal Infection: 2 people, 10.53%
Bacterial Infection: 2 people, 10.53%
Bone Disorder: 2 people, 10.53%

* Approximation only. Some reports may have incomplete information.

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