Lamictal and Phentermine drug interactions - a phase IV clinical study of FDA data
Summary:
Drug interactions are reported among people who take Lamictal and Phentermine. Common interactions include back injury among females and pruritus among males.
The phase IV clinical study analyzes what interactions people who take Lamictal and Phentermine have. It is created by eHealthMe based on reports of 99 people who take Lamictal and Phentermine from the FDA, and is updated regularly. You can use the study as a second opinion to make health care decisions.
Phase IV trials are used to detect adverse drug outcomes and monitor drug effectiveness in the real world. With medical big data and AI algorithms, eHealthMe is running millions of phase IV trials and makes the results available to the public. Our original studies have been referenced on 600+ medical publications including The Lancet, Mayo Clinic Proceedings, and Nature.
99 people who take Lamictal and Phentermine together, and have interactions are studied.
What is Lamictal?
Lamictal has active ingredients of lamotrigine. It is often used in bipolar disorder. eHealthMe is studying from 77,382 Lamictal users for its effectiveness, alternative drugs and more.
What is Phentermine?
Phentermine has active ingredients of phentermine hydrochloride. It is often used in weight loss. eHealthMe is studying from 18,485 Phentermine users for its effectiveness, alternative drugs and more.
Number of Lamictal and Phentermine reports submitted per year:

Common Lamictal and Phentermine drug interactions by gender *:
female:
- Back injury
- Bipolar i disorder
- Blepharospasm
- Blood triglycerides increased
- Crying
- Diarrhoea
- Drug dependence
- Faecal incontinence
- Flat affect
- Gait disturbance
male:
- Pruritus
- Ejection fraction
- Angioneurotic oedema
- Cerebral infarction
- Cerebrovascular accident
- Confusional state
- Dermatitis
- Diabetes mellitus
- Headache
- Meningorrhagia
Common Lamictal and Phentermine drug interactions by age *:
0-1:
n/a
2-9:
n/a
10-19:
n/a
20-29:
- Back disorder
- Suicidal ideation
30-39:
- Anxiety
- Back injury
- Bipolar i disorder
- Chest pain
- Depression
- Diabetes mellitus
- Disturbance in attention
- Fall
- Fibromyalgia
- Flat affect
40-49:
- Crying
- Faecal incontinence
- Fall
- Gastrointestinal disorder
- Hepatic cyst
- Hot flush
- Libido decreased
- Lymphadenopathy
- Memory impairment
- Mood swings
50-59:
- Nausea
- Abdominal pain upper
- Dyspnoea
- Hypertension
- Aggression
- Akathisia
- Anger
- Anxiety
- Blepharospasm
- Blood triglycerides increased
60+:
- Fatigue
- Ejection fraction
- Abdominal pain upper
- Altered state of consciousness
- Back pain
- Balance disorder
- Cerebral infarction
- Cerebrovascular accident
- Chronic kidney disease
- Colitis
Common conditions people have *:
- Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 45 people, 45.45%
- Cataplexy (loss of muscle tone accompanied by full conscious awareness): 20 people, 20.20%
- Depression: 16 people, 16.16%
- Pain: 10 people, 10.10%
- Fibromyalgia (a long-term condition which causes pain all over the body): 10 people, 10.10%
- Weight Decreased: 9 people, 9.09%
- Stress And Anxiety: 8 people, 8.08%
- Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 7 people, 7.07%
- Attention Deficit Hyperactivity Disorder (a chronic condition including attention difficulty, hyperactivity, and impulsiveness): 7 people, 7.07%
- Sleep Disorder: 6 people, 6.06%
* Approximation only. Some reports may have incomplete information.
Do you take Lamictal and Phentermine?
Personalize this study to your gender and ageHow to use the study?
You can discuss the study with your doctor, to ensure that all drug risks and benefits are fully discussed and understood.
Related publications that referenced our studies
- Alonso-Navarro H, Montes JM, Plaza-Nieto JF, Jiménez-Jiménez FJ, "Cataplexy Possibly Associated With Lamotrigine", Journal of clinical psychopharmacology, 2016 Aug .
- Gupta MC, Khanna J, Mathur R, Mittal N, "Lamotrigine-induced fulminant hepatic failure: an unusual presentation", IMSEAR, 2015 Jan .
Related studies
Alternative drugs to, pros and cons of the 2 drugs:
- Lamictal (77,382 reports)
- Phentermine (18,485 reports)
Common Lamictal and Phentermine interactions:
- Stress and anxiety: 19 reports
- Weight decreased: 5 reports
- Pain: 4 reports
Browse all drug interactions of Lamictal 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 zCommon Lamictal side effects:
- Rashes (redness): 7,619 reports
- Drug ineffective: 4,306 reports
- Fever: 3,676 reports
- Dizziness: 3,666 reports
- Fatigue (feeling of tiredness): 3,650 reports
- Headache (pain in head): 3,457 reports
- Stress and anxiety: 3,398 reports
Browse all side effects of Lamictal:
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 zCommon Phentermine side effects:
- Stress and anxiety: 2,467 reports
- Chest pain: 2,149 reports
- Pain: 1,233 reports
- Fatigue (feeling of tiredness): 1,037 reports
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 zCommon Lamictal interactions:
- Lamictal and Seroquel: 5,802 reports
- Lamictal and Keppra: 5,003 reports
- Lamictal and Abilify: 4,705 reports
- Lamictal and Wellbutrin: 4,383 reports
- Lamictal and Klonopin: 3,923 reports
- Lamictal and Cymbalta: 3,328 reports
- Lamictal and Clonazepam: 3,215 reports
- Lamictal and Topamax: 3,189 reports
- Lamictal and Effexor: 2,839 reports
- Lamictal and Xanax: 2,812 reports
Browse all interactions between Lamictal 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 zCommon Phentermine interactions:
- Phentermine and Metformin: 528 reports
- Phentermine and Vitamin d: 522 reports
- Phentermine and Synthroid: 500 reports
- Phentermine and Gabapentin: 499 reports
- Phentermine and Ibu: 464 reports
- Phentermine and Profen: 463 reports
- Phentermine and Prednisone: 460 reports
- Phentermine and Lisinopril: 456 reports
- Phentermine and Xyrem: 435 reports
- Phentermine and Omeprazole: 418 reports
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 zHow the study uses the data?
The study uses data from the FDA. It is based on lamotrigine and phentermine hydrochloride (the active ingredients of Lamictal and Phentermine, respectively), and Lamictal 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. Patients in the study may take other drugs besides Lamictal and Phentermine.
Who is eHealthMe?
With medical big data and proven AI 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 600+ 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.
Recent studies on eHealthMe:
- Bydureon Bcise and Hypotension - now
- Diastolic Dysfunction and Atrial Fibrillation/Flutter - 15 seconds ago
- Peridex and Metoprolol Tartrate drug interaction - 24 seconds ago
- Delzicol and Zestril drug interaction - 39 seconds ago
- Cannabis and Dexlansoprazole drug interaction - 44 seconds ago
- How effective is Differin for Acne? - 51 seconds ago
- Humira and Piriformis Syndrome - 56 seconds ago
- How effective is Isosorbide Mononitrate for High Blood Pressure? - 59 seconds ago
- Phenazopyridine Hcl and Timoptic In Ocudose drug interaction - a minute ago
- Dysport and Laryngeal Nerve Damage - a minute ago