Topamax and Lactase drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Topamax (topiramate) and Lactase (lactase). Common drug interactions include chest discomfort among females and sinusitis among males.

The phase IV clinical study analyzes what interactions people have when they take Topamax and Lactase. It is created by eHealthMe based on reports of 11 people who take the same drugs from the FDA, and is updated regularly.

What is Topamax?

Topamax has active ingredients of topiramate. It is often used in migraine. eHealthMe is studying from 58,955 Topamax users. Check the latest studies of Topamax.

What is Lactase?

Lactase has active ingredients of lactase. It is often used in lactose intolerance. eHealthMe is studying from 948 Lactase users. Check the latest studies of Lactase.

On Aug, 02, 2026

11 people who take Topamax and Lactase together, and have interactions are studied.

What are the common drug interactions of Topamax and Lactase, by gender? *:

female:

Chest discomfort
Chest pain
Chronic kidney disease
Diarrhoea
Drug ineffective
Flank pain (a distressing sensation experienced around the lower back and the upper abdomen)
Heart valve incompetence (heart's valves do not work correctly)
Hernia obstructive (obstruction in the bowel; interrupt the blood supply to the herniated tissue)
Hiatus hernia (hernia resulting from the protrusion of part of the stomach through the diaphragm)
Implant site pain

male:

Sinusitis (inflammation of sinus)
Autism spectrum disorder (developmental disabilities that can cause significant social, communication and behavioural challenges)
Chronic kidney disease
Hospitalisation
Opiates positive
Transient ischaemic attack (a transient episode of neurologic dysfunction caused by ischemia (loss of blood flow))
Urine amphetamine positive
Vomiting

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Heart valve incompetence (heart's valves do not work correctly)
Implant site pain
Implant site vesicles
Mitral valve incompetence (inefficient heart valve)
Pulmonary arterial pressure increased
Right atrial dilatation (enlargement of the right atrium chamber of heart)
Tricuspid valve incompetence (inefficient heart valve)

30-39:

Chronic kidney disease
Drug ineffective
Infection
Injection site cyst
Injection site rash
Skin lesion
Staphylococcal infection (an infection with staphylococcus bacteria)

40-49:

Chest discomfort
Hiatus hernia (hernia resulting from the protrusion of part of the stomach through the diaphragm)
Infusion related reaction

50-59:

Abdominal pain
Back pain
Nausea (feeling of having an urge to vomit)
Neck pain
Pain in extremity
Sinus disorder (disease of sinus)
Chest pain
Diarrhoea
Flank pain (a distressing sensation experienced around the lower back and the upper abdomen)
Hernia obstructive (obstruction in the bowel; interrupt the blood supply to the herniated tissue)

60+:

n/a

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 4 people, 36.36%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 3 people, 27.27%
Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 1 person, 9.09%
Suicidal Ideation: 1 person, 9.09%
Skin Wrinkling (wrinkle on skin): 1 person, 9.09%
Seizures (abnormal excessive or synchronous neuronal activity in the brain): 1 person, 9.09%
Prolactinoma (benign tumour (adenoma) of the pituitary gland that produces a hormone called prolactin): 1 person, 9.09%
Pituitary Tumor Benign: 1 person, 9.09%
Pain: 1 person, 9.09%
Osteoporosis (bones weak and more likely to break): 1 person, 9.09%

* Approximation only. Some reports may have incomplete information.

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