Cephalexin and Tykerb drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Cephalexin (cephalexin) and Tykerb (lapatinib ditosylate). Common drug interactions include fatigue among females and death among males.

The phase IV clinical study analyzes what interactions people have when they take Cephalexin and Tykerb. It is created by eHealthMe based on reports of 29 people who take the same drugs from the FDA, and is updated regularly.

What is Cephalexin?

Cephalexin has active ingredients of cephalexin. It is often used in infection. eHealthMe is studying from 30,580 Cephalexin users. Check the latest studies of Cephalexin.

What is Tykerb?

Tykerb has active ingredients of lapatinib ditosylate. It is often used in breast cancer. eHealthMe is studying from 12,231 Tykerb users. Check the latest studies of Tykerb.

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 Aug, 20, 2026

29 people who take Cephalexin and Tykerb together, and have interactions are studied.

Cephalexin and Tykerb drug interactions.

What are the common drug interactions of Cephalexin and Tykerb, by gender? *:

female:

Fatigue (feeling of tiredness)
Gait disturbance
Vision blurred
Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
Feeling cold
Fluid retention (an abnormal accumulation of fluid in the blood)
Movement disorder (neurological syndromes where they may be excess of movement or a paucity of movement that is not connected to weakness)
Myalgia (muscle pain)
Peripheral swelling
Balance disorder

male:

Death

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

0-1:

n/a

2-9:

n/a

10-19:

Dyspnoea (difficult or laboured respiration)
Emotional disorder
Erythema (redness of the skin)
Facial pain
Faeces discoloured
Fall
Fibrosis (formation of excess fibrous connective tissue in an organ or tissue)
Gait disturbance
Gastritis (inflammation of stomach)
Gastrointestinal disorder (functional problems of gastrointestinal tract)

20-29:

n/a

30-39:

Abdominal pain lower
Abortion spontaneous (naturally occurring miscarriage)
Breast pain
Cough
Death
Diarrhoea
Drug ineffective
Dry skin
Dysphagia (a condition in which swallowing is difficult or painful)
Epistaxis (bleed from the nose)

40-49:

Diarrhoea

50-59:

Bone pain
Fatigue (feeling of tiredness)
Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
Diarrhoea
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Constipation
Hypoaesthesia (reduced sense of touch or sensation)
Nausea (feeling of having an urge to vomit)
Acne (skin problems that cause pimples)
Arthralgia (joint pain)

60+:

Diarrhoea
Rash
Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
Haemorrhage (bleeding)
Hilar lymphadenopathy (disease of the lymph nodes due to infection)
Hypersensitivity
Lymphadenopathy (disease or enlargement of lymph nodes)
Mucosal inflammation (infection of mucous membrane)
Nail infection
Nasopharyngitis (inflammation of the nasopharynx)

What are the existing conditions these people have? *

Breast Cancer Female: 5 people, 17.24%
Pleural Effusion (water on the lungs): 2 people, 6.90%

* Approximation only. Some reports may have incomplete information.

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