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

Summary:

Drug interactions are reported among people who take Armour thyroid (thyroid tablets, usp) and Cephalexin (cephalexin). Common drug interactions include pallor among females and arthralgia among males.

The phase IV clinical study analyzes what interactions people have when they take Armour thyroid and Cephalexin. It is created by eHealthMe based on reports of 76 people who take the same drugs from the FDA, and is updated regularly.

What is Armour thyroid?

Armour thyroid has active ingredients of thyroid tablets, usp. It is often used in hypothyroidism. eHealthMe is studying from 11,975 Armour thyroid users. Check the latest studies of Armour thyroid.

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.

On Aug, 04, 2026

76 people who take Armour thyroid and Cephalexin together, and have interactions are studied.

Armour thyroid and Cephalexin drug interactions.

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

female:

Pallor
Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
Presyncope
Sciatica (a set of symptoms including pain caused by general compression or irritation of one of five spinal nerve roots of each sciatic nerve)
Sinusitis (inflammation of sinus)
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Hernia (hernia happens when part of an internal organ or tissue bulges through a weak area of muscle)
Surgery
Abdominal pain upper
Adverse event

male:

Arthralgia (joint pain)
Asthenia (weakness)
Craniosynostosis (a baby is born with an abnormally shaped skull or develops one during growth)
Dizziness
Emotional distress
Erectile dysfunction
Fall
Fatigue (feeling of tiredness)
Gait disturbance
Limb injury

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

0-1:

Craniosynostosis (a baby is born with an abnormally shaped skull or develops one during growth)

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
Injury
Pulmonary embolism (blockage of the main artery of the lung)
Thrombophlebitis superficial (swelling (inflammation) of a superficial vein caused by a blood clot)
Palpitations (feelings or sensations that your heart is pounding or racing)

40-49:

Migraine (headache)
Nasopharyngitis (inflammation of the nasopharynx)
Oropharyngeal pain
Orthostatic hypotension (a medical condition consisting of a sudden decrease in blood pressure when a person stands up)
Panic attack
Somnolence (a state of near-sleep, a strong desire for sleep)
Syncope (loss of consciousness with an inability to maintain postural tone)
Anxiety
Arthralgia (joint pain)
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)

50-59:

Back pain
Bone density decreased
Bone loss
Chronic kidney disease
Dizziness
Fatigue (feeling of tiredness)
Gait disturbance
Haemoglobin decreased
Limb injury
Localised infection (infection at the single location)

60+:

Asthenia (weakness)
Chronic kidney disease
Crying
Depression
Dizziness
Drug withdrawal syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation)
Dyspepsia (indigestion)
Dysphonia (speech disorder attributable to a disorder of phonation)
Facial paralysis (loss of function of face muscle)
Fatigue (feeling of tiredness)

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 17 people, 22.37%
Pain: 16 people, 21.05%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 15 people, 19.74%
High Blood Cholesterol: 8 people, 10.53%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 8 people, 10.53%
High Blood Pressure: 7 people, 9.21%
Stress And Anxiety: 5 people, 6.58%
Muscle Spasms (muscle contraction): 5 people, 6.58%
Depression: 5 people, 6.58%
Hypersensitivity: 4 people, 5.26%

* Approximation only. Some reports may have incomplete information.

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