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

Summary:

Drug interactions are reported among people who take Flexeril (cyclobenzaprine hydrochloride) and Soy (soy). Common drug interactions include complex partial seizures among females and abscess among males.

The phase IV clinical study analyzes what interactions people have when they take Flexeril and Soy. It is created by eHealthMe based on reports of 13 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 Soy?

Soy has active ingredients of soy. eHealthMe is studying from 562 Soy users. Check the latest studies of Soy.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Sep, 01, 2026

13 people who take Flexeril and Soy together, and have interactions are studied.

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

female:

Complex partial seizures (epileptic seizure)
Simple partial seizures (seizures which affect only a small region of the brain)
Cardiomyopathy (weakening of the heart muscle)
Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)
Chronic kidney disease
Coronary artery occlusion (complete obstruction of blood flow in a coronary artery)
Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
Renal failure (kidney dysfunction)
Seizure (abnormal excessive or synchronous neuronal activity in the brain)
Uterine cancer

male:

Abscess (pus)
Anxiety
Fracture
Injury
Nausea (feeling of having an urge to vomit)
Neuropathy peripheral (surface nerve damage)
Oral herpes (viral infection of mouth)
Osteopenia (a condition where bone mineral density is lower than normal)
Osteoporosis (bones weak and more likely to break)
Pain

What are the common drug interactions of Flexeril and Soy, 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:

Abscess (pus)
Anxiety
Fracture
Injury
Nausea (feeling of having an urge to vomit)
Neuropathy peripheral (surface nerve damage)
Oral herpes (viral infection of mouth)
Osteopenia (a condition where bone mineral density is lower than normal)
Osteoporosis (bones weak and more likely to break)
Pain

50-59:

n/a

60+:

n/a

What are the existing conditions these people have? *

Aseptic Necrosis (the death of bone tissue due to a lack of blood supply): 6 people, 46.15%
Bone Erosion: 6 people, 46.15%
Pathological Fracture (broken bone caused by disease): 6 people, 46.15%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 15.38%
Malaria (a parasitic disease due to mosquito bite): 1 person, 7.69%
Depression: 1 person, 7.69%
Fungal Infection: 1 person, 7.69%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 7.69%
High Blood Cholesterol: 1 person, 7.69%
High Blood Pressure: 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

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