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Review: Concerta and Phentermine

This review analyzes the effectiveness and drug interactions between Concerta and Phentermine. It is created by eHealthMe based on reports of 42 people who take the same drugs from FDA and social media, and is updated regularly.

Stay connected: join a mobile support group for people who take Concerta and Phentermine >>>

What are the drugs

Concerta (what 10,357 Concerta users reported?) has active ingredients of methylphenidate hydrochloride. It is used in attention deficit hyperactivity disorder.

Phentermine (what 12,951 Phentermine users reported?) has active ingredients of phentermine hydrochloride. It is used in obesity.

On Aug, 11, 2014: 42 people who take Concerta, Phentermine are studied

Concerta, Phentermine outcomes

Drug combinations in study:
- Concerta (methylphenidate hydrochloride)
- Phentermine (phentermine hydrochloride)

Drug effectiveness over time :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
Concerta is effectiven/a0.00%
(0 of 4 people)
(0 of 1 people)
Phentermine is effective0.00%
(0 of 1 people)
(0 of 3 people)
(0 of 1 people)
(0 of 1 people)

Most common drug interactions over time * :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
Deathn/aDeathn/an/an/aWeight IncreasedChest Pain
Blood Cholesterol IncreasedPalpitations
Type 2 Diabetes MellitusFatigue
HypercholesterolaemiaDyspnoea Nos
Sleep Apnoea SyndromeHypokalaemia
Asthma Nos
Drug Dependence
Cardiovascular Disorder Nos
Pulmonary Hypertension Nos

Drug effectiveness by gender :

Concerta is effective0.00%
(0 of 5 people)
Phentermine is effective0.00%
(0 of 6 people)

Most common drug interactions by gender * :

Chest PainInsomnia
HypokalaemiaMemory Impairment
AscitesDrug Dependence
Asthma NosSomnolence
Pulmonary Hypertension NosDrug Withdrawal Syndrome
PancytopeniaSuicidal Ideation
Dyspnoea ExertionalSinusitis Nos

Drug effectiveness by age :

Concerta is effectiven/an/an/a0.00%
(0 of 1 people)
(0 of 2 people)
(0 of 3 people)
Phentermine is effectiven/an/an/an/a0.00%
(0 of 3 people)
(0 of 3 people)

Most common drug interactions by age * :

n/an/an/aDeathAscitesAsthma NosDrug DependencePalpitations
Valvular Heart Disease NosHypokalaemiaDrug Withdrawal SyndromeHypokinesia
Sleep Disorder NosPancytopeniaInsomniaRespiratory Disorder Nos
SedationHepatic NecrosisMemory ImpairmentValvular Heart Disease Nos
Condition AggravatedMalaiseAnxietyVentricular Tachycardia
Dyspnoea ExertionalPalpitationsDepressionVentricular Extrasystoles
Pulmonary Hypertension NosChest PainSomnolenceFatigue
Pneumonia NosJaundice NosBlood Cholesterol IncreasedElectrocardiogram Abnormal Nos
Oedema Lower LimbAscitesSuicidal IdeationChest Tightness
RestlessnessAnaemia NosHeadacheCardiac Disorder Nos

* Some reports may have incomplete information.

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

You can also:

Get connected! Join a mobile support group to help out with your experience or learn from others anytime and anywhere:
- group for people who take Concerta and Phentermine
- group for people who take Concerta
- group for people who take Phentermine

Comments from related studies:

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Can you answer these questions (what is this?):

More questions for: Concerta, Phentermine

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    I am insulin resistant, unable to lose weight w/diet and exercise. Started us of Phentermine for about 6 days and had increasing symptoms of abscess tooth. Went to dentist, was not a tooth, he thought it was a sinus infection. Antibiotics did not work. My PCP gave me more antibiotics. Did not work. ...

  • Seroquel made me weird, indifferent to everything.
    With constant anxiety. I found myself not wanting to be nice to my family, hearting them and seeing the consecuences later , rather than before. I remember wearing a wig to the nutritionist, "just because".

  • Temporal lobe epilepsy in concerta
    My son is 8 years old and has ADHD with severe hyperactivity and impulsivity. He has been on meds since he was 5. We started with Foculin, switched to Daytrana patch and just recently (with the help of his Psychiatrist) decided to try Concerta. We stopped the Daytrana and began titration onto Conc ...

More reviews for: Concerta, Phentermine

Complete drug side effects:

On eHealthMe, Concerta (methylphenidate hydrochloride) is often used to treat attention deficit hyperactivity disorder. Phentermine (phentermine hydrochloride) is often used to treat lipids abnormal. Find out below the conditions the drugs are used for, how effective they are, and any alternative drugs that you can use to treat those same conditions.

What is the drug used for and how effective is it:

Other drugs that are used to treat the same conditions:

NOTE: The study is based on active ingredients. Other drugs that have the same active ingredients are also considered.

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 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, and has not been supported by scientific studies or clinical trials unless otherwise stated. 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.

You may report adverse side effects to the FDA at or 1-800-FDA-1088 (1-800-332-1088).

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