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

Summary:

Drug interactions are reported among people who take Keflex (cephalexin) and Astepro (azelastine hydrochloride). Common drug interactions include arthropathy among females and deep vein thrombosis among males.

The phase IV clinical study analyzes what interactions people have when they take Keflex and Astepro. It is created by eHealthMe based on reports of 12 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 Astepro?

Astepro has active ingredients of azelastine hydrochloride. It is often used in allergies. eHealthMe is studying from 3,336 Astepro users. Check the latest studies of Astepro.

On Jul, 17, 2026

12 people who take Keflex and Astepro together, and have interactions are studied.

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

female:

Arthropathy
Chest pain
Swelling
Hemiplegia (paralysis of one side of the body)
Inflammation
Migraine (headache)
Abdominal pain upper
Anxiety
Cholecystitis chronic (long lasting infection of gallbladder)
Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)

male:

Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
Peripheral swelling
Constipation
Death
Fall
Hallucination (an experience involving the perception of something not present)
Heart rate increased
Hip fracture
Lower respiratory tract infection
Postural orthostatic tachycardia syndrome (abnormal increase in heart rate on becoming upright)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Abdominal pain upper
Cholecystitis chronic (long lasting infection of gallbladder)
Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)
Gallbladder disorder

30-39:

n/a

40-49:

n/a

50-59:

Inflammation
Migraine (headache)
Hemiplegia (paralysis of one side of the body)

60+:

Constipation
Death
Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
Fall
Hallucination (an experience involving the perception of something not present)
Herpes zoster
Hip fracture
Lower respiratory tract infection
Peripheral swelling

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 6 people, 50.00%
Wheezing (a high-pitched whistling sound made while you breath): 3 people, 25.00%
Salivary Hypersecretion (excess saliva secretion): 2 people, 16.67%
Nasal Congestion (blockage of the nasal passages usually due to membranes lining the nose becoming swollen from inflamed blood vessels): 1 person, 8.33%
Immunodeficiency Common Variable: 1 person, 8.33%
Herpes Virus Infection: 1 person, 8.33%
Hallucinations (sensations that appear real but are created by your mind): 1 person, 8.33%
Drowsiness: 1 person, 8.33%
Dementia With Lewy Bodies (progressive degenerative disease or syndrome of the brain): 1 person, 8.33%
Delusion (a false belief or opinion): 1 person, 8.33%

* Approximation only. Some reports may have incomplete information.

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