Keflex and Cranberry drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Keflex (cephalexin) and Cranberry (cranberry). Common drug interactions include fall among females and abscess limb among males.

The phase IV clinical study analyzes what interactions people have when they take Keflex and Cranberry. It is created by eHealthMe based on reports of 35 people who take the same drugs from the FDA, and is updated regularly.

What is Keflex?

Keflex has active ingredients of cephalexin. It is often used in infection. eHealthMe is studying from 15,844 Keflex users. Check the latest studies of Keflex.

What is Cranberry?

Cranberry has active ingredients of cranberry. It is often used in urinary tract infection. eHealthMe is studying from 5,399 Cranberry users. Check the latest studies of Cranberry.

On Aug, 09, 2026

35 people who take Keflex and Cranberry together, and have interactions are studied.

What are the common drug interactions of Keflex and Cranberry, by gender? *:

female:

Fall
Pneumonia
Asthenia (weakness)
Abdominal adhesions (inflammation of abdomen)
Back pain
Fatigue (feeling of tiredness)
Hot flush (sudden feelings of heat)
Pruritus (severe itching of the skin)
Abasia (inability to walk)
Abdominal discomfort

male:

Abscess limb (limb infection)
Anal abscess
Necrotising fasciitis (an uncommon life-threatening soft-tissue infection)
Perineal abscess
Renal failure acute (rapid kidney dysfunction)
Scrotal abscess (pus in scrotum)
Sepsis (a severe blood infection that can lead to organ failure and death)
Septic shock (shock due to blood infection)
Subcutaneous abscess
Tooth abscess (pus formation in tooth)

What are the common drug interactions of Keflex and Cranberry, 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:

n/a

50-59:

Abscess limb (limb infection)
Anal abscess
Genital abscess (build up of pus in genital)
Groin abscess (pus in groin)
Injection site atrophy (injection site wasting or decreasing in size of a body organ, tissue, or part)
Injection site mass
Metabolic acidosis (body produces too much acid, or when the kidneys are not removing enough acid from the body)
Necrotising fasciitis (an uncommon life-threatening soft-tissue infection)
Perineal abscess
Scrotal abscess (pus in scrotum)

60+:

Fall
Asthenia (weakness)
Abdominal discomfort
Anaemia (lack of blood)
Arrhythmia (irregular heartbeat)
Blood creatinine increased
Blood pressure inadequately controlled
Blood sodium decreased
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)
Cervical spinal stenosis (narrowing of the spinal canal in the neck)

What are the existing conditions these people have? *

Pain: 6 people, 17.14%
Multiple Myeloma (cancer of the plasma cells): 5 people, 14.29%
High Blood Cholesterol: 3 people, 8.57%
Swelling: 2 people, 5.71%
Pulmonary Embolism (blockage of the main artery of the lung): 2 people, 5.71%
Indigestion: 2 people, 5.71%
High Blood Pressure: 2 people, 5.71%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 2 people, 5.71%
Depression: 2 people, 5.71%
Cardiac Disorder: 2 people, 5.71%

* Approximation only. Some reports may have incomplete information.

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