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Phentermine and Adempas drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Phentermine (phentermine hydrochloride) and Adempas (riociguat). Common drug interactions include fall among females.

The phase IV clinical study analyzes what interactions people have when they take Phentermine and Adempas. It is created by eHealthMe based on reports of 17 people who take the same drugs from the FDA, and is updated regularly.

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.

What is Adempas?

Adempas has active ingredients of riociguat. eHealthMe is studying from 29,741 Adempas users. Check the latest studies of Adempas.

On Jul, 13, 2026

17 people who take Phentermine and Adempas together, and have interactions are studied.

Phentermine and Adempas drug interactions.

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

female:

  1. Fall
  2. Cerebrovascular accident (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)
  3. Back injury
  4. Balance disorder
  5. Dizziness
  6. Dyspnoea (difficult or laboured respiration)
  7. Gait disturbance
  8. Hypersomnia (excessive daytime sleepiness (eds))
  9. Hypoxia (low oxygen in tissues)
  10. Memory impairment

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

  1. Hospitalisation

50-59:

n/a

60+:

  1. Fall
  2. Dehydration (dryness resulting from the removal of water)
  3. Cerebrovascular accident (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)
  4. Dizziness
  5. Hypersomnia (excessive daytime sleepiness (eds))
  6. Hypoxia (low oxygen in tissues)
  7. Memory impairment
  8. Seasonal allergy (allergic condition due to certain season)
  9. Diarrhoea
  10. Respiratory syncytial virus infection (viral disease of respiratory system)

What are the existing conditions these people have? *

  1. Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 13 people, 76.47%
  2. Oxygen Consumption Decreased: 3 people, 17.65%
  3. Leukaemia (blood or bone marrow cancer): 2 people, 11.76%

* Approximation only. Some reports may have incomplete information.

Do you take Phentermine and Adempas?

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Related studies:

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

Browse all drug interactions of Phentermine and Adempas:

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 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 side effects of Adempas:

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

Browse all interactions between Adempas 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 phentermine hydrochloride and riociguat (the active ingredients of Phentermine and Adempas, respectively), and Phentermine and Adempas (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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