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Armour thyroid and Phentermine 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 Phentermine (phentermine hydrochloride). Common drug interactions include pneumonia among females and diarrhoea among males.

The phase IV clinical study analyzes what interactions people have when they take Armour thyroid and Phentermine. It is created by eHealthMe based on reports of 60 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 Phentermine?

Phentermine has active ingredients of phentermine hydrochloride. It is often used in weight loss. eHealthMe is studying from 19,870 Phentermine users. Check the latest studies of Phentermine.

On Jul, 20, 2026

60 people who take Armour thyroid and Phentermine together, and have interactions are studied.

Armour thyroid and Phentermine drug interactions.

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

female:

  1. Pneumonia
  2. Constipation
  3. Emotional distress
  4. Insomnia (sleeplessness)
  5. Muscle spasms (muscle contraction)
  6. Psoriasis (immune-mediated disease that affects the skin)
  7. Gastrointestinal hypomotility (less activity of the intestinal tract)
  8. Heart rate increased
  9. Hot flush (sudden feelings of heat)
  10. Ligament rupture (tear in ligament)

male:

  1. Diarrhoea
  2. Headache (pain in head)
  3. Hot flush (sudden feelings of heat)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Nausea (feeling of having an urge to vomit)
  2. Dizziness
  3. Ligament rupture (tear in ligament)
  4. Abdominal pain
  5. Confusional state
  6. Disorientation (disability in which the senses of time, direction, and recognition of people and places)
  7. Drug ineffective
  8. Fatigue (feeling of tiredness)
  9. Hangover
  10. Headache (pain in head)

30-39:

  1. Blood creatinine increased
  2. Blood urea increased
  3. Choking sensation (feeling of obstruction in respiratory system)
  4. Constipation
  5. Dry mouth
  6. Dysphagia (a condition in which swallowing is difficult or painful)
  7. Epistaxis (bleed from the nose)
  8. Feeding disorder (when children refuse to eat certain food groups)
  9. Nasal dryness (dry nose)
  10. Nausea (feeling of having an urge to vomit)

40-49:

  1. Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
  2. Depersonalisation
  3. Dermatitis atopic (inflammatory, chronically relapsing, non-contagious and pruritic skin disorder)
  4. Emotional distress
  5. Gait disturbance
  6. Hot flushes (sudden feelings of heat)
  7. Hypotension (abnormally low blood pressure)
  8. Injury
  9. Joint lock
  10. Joint swelling

50-59:

  1. Constipation
  2. Heart rate increased
  3. Weight increased
  4. Blood corticotrophin decreased
  5. Hot flush (sudden feelings of heat)
  6. Increased appetite
  7. Joint injury
  8. Night sweats (sweating in night)
  9. Osteopenia (a condition where bone mineral density is lower than normal)
  10. Rash pruritic (redness with itching)

60+:

  1. Fatigue (feeling of tiredness)
  2. Anxiety
  3. Bone density decreased
  4. Bone loss
  5. Drug hypersensitivity
  6. Emotional distress
  7. Nasopharyngitis (inflammation of the nasopharynx)
  8. Neuralgia (pain in one or more nerves)
  9. Non-hodgkin's lymphoma (malignant (cancer) cells form in the lymph system)
  10. Onychomycosis (fungal infection of the nail)

What are the existing conditions these people have? *

  1. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 11 people, 18.33%
  2. Drowsiness: 6 people, 10.00%
  3. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 5 people, 8.33%
  4. Psoriasis (immune-mediated disease that affects the skin): 5 people, 8.33%
  5. Weight Decreased: 4 people, 6.67%
  6. Hypersensitivity: 4 people, 6.67%
  7. Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 4 people, 6.67%
  8. Pain: 3 people, 5.00%
  9. Procedural Pain: 3 people, 5.00%
  10. Weakness: 3 people, 5.00%

* Approximation only. Some reports may have incomplete information.

Do you take Armour thyroid and Phentermine?

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Armour thyroid and Phentermine:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Armour thyroid:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all side effects of Phentermine:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Armour thyroid and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Phentermine and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

How the study uses the data?

The study uses data from the FDA. It is based on thyroid tablets, usp and phentermine hydrochloride (the active ingredients of Armour thyroid and Phentermine, respectively), and Armour thyroid and Phentermine (the brand names). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.

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