Soma and Vyvanse drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Soma (carisoprodol) and Vyvanse (lisdexamfetamine dimesylate). Common drug interactions include surgery among females and chronic lymphocytic leukaemia among males.

The phase IV clinical study analyzes what interactions people have when they take Soma and Vyvanse. It is created by eHealthMe based on reports of 59 people who take the same drugs from the FDA, and is updated regularly.

What is Soma?

Soma has active ingredients of carisoprodol. It is often used in muscle spasms. eHealthMe is studying from 17,137 Soma users. Check the latest studies of Soma.

What is Vyvanse?

Vyvanse has active ingredients of lisdexamfetamine dimesylate. It is often used in attention deficit hyperactivity disorder. eHealthMe is studying from 35,870 Vyvanse users. Check the latest studies of Vyvanse.

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, 21, 2026

59 people who take Soma and Vyvanse together, and have interactions are studied.

Soma and Vyvanse drug interactions.

What are the common drug interactions of Soma and Vyvanse, by gender? *:

female:

  1. Surgery
  2. Tremor (trembling or shaking movements in one or more parts of your body)
  3. Visual impairment
  4. Abnormal loss of weight
  5. Blood glucose increased
  6. Glaucoma (increased fluid pressure in the eye with vision loss)
  7. Menopause (end of monthly cycles in women)
  8. Seasonal allergy (allergic condition due to certain season)
  9. Sleep disorder
  10. Abdominal pain

male:

  1. Chronic lymphocytic leukaemia (cancer in which the bone marrow makes too many lymphocytes (a type of white blood cell))
  2. Death
  3. Weight decreased
  4. Abdominal distension
  5. Abdominal pain upper
  6. Alcohol withdrawal syndrome
  7. Alcoholic pancreatitis
  8. Arthralgia (joint pain)
  9. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  10. Burning sensation

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Bedridden
  2. Memory impairment
  3. Alcohol withdrawal syndrome
  4. Alcoholic pancreatitis
  5. Antisocial behaviour
  6. Cognitive disorder (mental health disorders affects learning, memory, perception, and problem solving)
  7. Pancreatitis acute (sudden inflammation of pancreas)
  8. Poisoning
  9. Sedation
  10. Seizure (abnormal excessive or synchronous neuronal activity in the brain)

30-39:

  1. Corneal degeneration (abnormal deposition of substances in the transparent front part of the eye)
  2. Diarrhoea
  3. Ear infection
  4. Glaucoma (increased fluid pressure in the eye with vision loss)
  5. Injection site erythema (redness at injection site)
  6. Injection site reaction
  7. Injection site swelling
  8. Injection site warmth
  9. Pneumonia
  10. Psoriatic arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop)

40-49:

  1. Lip swelling
  2. Lymphadenopathy (disease or enlargement of lymph nodes)
  3. Mood altered (changes in mood)
  4. Muscle atrophy (a decrease in the mass of the muscle)
  5. Pyrexia (fever)
  6. Tinnitus (a ringing in the ears)
  7. Urinary tract infection
  8. Weight decreased
  9. Migraine (headache)
  10. Decreased appetite

50-59:

  1. Alveolar osteitis (complication of wound healing following extraction of a tooth)
  2. Anaemia (lack of blood)
  3. Bruxism (habitual grinding of the teeth, typically during sleep)
  4. Incision site pain
  5. Incisional drainage
  6. Jaw disorder (jaw disease)
  7. Pain in jaw
  8. Spinal cord compression
  9. Synovial cyst (cyst of joint filled with synovial fluid)
  10. Tooth disorder (tooth disease)

60+:

  1. Death
  2. Nausea (feeling of having an urge to vomit)
  3. Neurological symptom (symptoms of nervous system disease)
  4. Pruritus (severe itching of the skin)
  5. Rash
  6. Tenosynovitis (inflammation of the fluid-filled sheath (called the synovium) that surrounds a tendon)
  7. Throat irritation
  8. Vision blurred
  9. Visual field defect
  10. White blood cell count increased

What are the existing conditions these people have? *

  1. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 26 people, 44.07%
  2. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 14 people, 23.73%
  3. Stress And Anxiety: 6 people, 10.17%
  4. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 6 people, 10.17%
  5. Pain: 6 people, 10.17%
  6. Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 6 people, 10.17%
  7. Drowsiness: 6 people, 10.17%
  8. Depression: 6 people, 10.17%
  9. Thyroid Diseases: 5 people, 8.47%
  10. Back Pain: 5 people, 8.47%

* Approximation only. Some reports may have incomplete information.

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Related studies:

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

Browse all drug interactions of Soma and Vyvanse:

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 Soma:

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 Vyvanse:

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 Soma 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 Vyvanse 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

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on carisoprodol and lisdexamfetamine dimesylate (the active ingredients of Soma and Vyvanse, respectively), and Soma and Vyvanse (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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