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Review: taking Phentermine and Gabapentin together

Summary: drug interactions are reported among people who take Phentermine and Gabapentin together.

This review analyzes the effectiveness and drug interactions between Phentermine and Gabapentin. It is created by eHealthMe based on reports of 117 people who take the same drugs from FDA and social media, and is updated regularly.


You are not alone: join a support group for people who take Phentermine and Gabapentin >>>

On Apr, 12, 2015: 117 people who take Phentermine, Gabapentin are studied

Phentermine, Gabapentin outcomes

Drug combinations in study:
- Phentermine (phentermine hydrochloride)
- Gabapentin (gabapentin)

Drug effectiveness over time :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
Phentermine is effective50.00%
(3 of 6 people)
(2 of 4 people)
(2 of 6 people)
(1 of 3 people)
(0 of 1 people)
Gabapentin is effective16.67%
(1 of 6 people)
(1 of 8 people)
(2 of 2 people)
(1 of 1 people)
(0 of 2 people)
(2 of 4 people)

Drug effectiveness by gender :

Phentermine is effective42.11%
(8 of 19 people)
(0 of 1 people)
Gabapentin is effective31.82%
(7 of 22 people)
(0 of 1 people)

Drug effectiveness by age :

Phentermine is effectiven/an/an/a25.00%
(1 of 4 people)
(2 of 16 people)
(2 of 23 people)
(3 of 13 people)
Gabapentin is effectiven/an/an/a0.00%
(0 of 3 people)
(1 of 14 people)
(4 of 25 people)
(2 of 14 people)

Most common drug interactions over time * :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
SciaticaFeverAnxietyCluster HeadachesValium OverdoseHair LossWeight FluctuationDepression
Tmj DisordersFatigue AggravatedDepressionInflammationNervousnessDizzinessNervousness
HypothyroidismNumbness And TinglingHigh Blood PressureJoint StiffnessGastrointestinal DiscomfortDrug Dependence
Plantar FasciitisLoss Of LibidoMorbid ObesityMuscle Cramps AggravatedWeaknessHeadache
Cervical Spinal StenosisNausea AggravatedHot FlushNails - Fungal InfectionNausea
BursitisNails - Fungal InfectionArthritisNausea AggravatedAnxiety
FibromyalgiaMuscle Cramps AggravatedPlantar FasciitisNumbness And TinglingVision Blurred
DepressionJoint StiffnessHypothyroidismFatigue AggravatedInsomnia
AnxietyInflammationBursitisFeverDrug Withdrawal Syndrome
NauseaCluster HeadachesFibromyalgiaHair LossDrug Ineffective

Most common drug interactions by gender * :

AnxietyDrug Dependence
FatigueDrug Withdrawal Syndrome
FallDrug Ineffective
Chest PainIrritability
Dyspnoea NosVisual Disturbance

Most common drug interactions by age * :

n/an/an/aMaternal Exposure During PregnancyChest PainSuicidal IdeationFallInsomnia
Complex Partial SeizuresDyspnoea NosDepressionNervousnessDrug Ineffective
ThrombosisNauseaAnxietyHypotensionDrug Dependence
Pulmonary EmbolismFatigueAnxiety NecHeadacheDrug Withdrawal Syndrome
Valium OverdosePyrexiaPancytopeniaFatigueIrritability
Arterial Thrombosis LimbPneumoniaCardiac Murmur NosRhinitis NosDepression
HypoaesthesiaHeadacheRetinopathy DiabeticHyperhidrosis
Pain NosInternational Normalised Ratio IncreasedPain In LimbVisual Disturbance
DepressionPharyngitisTooth DisorderVision Blurred
AnxietyOedema PeripheralRib FractureDizziness

* 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.

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Do you take Phentermine and Gabapentin?




You are not alone! Join a related support group:
- support group for people who take Gabapentin
- support group for people who take Phentermine

Recent related drug studies (Check your drugs):

Complete drug side effects:

On eHealthMe, Phentermine (phentermine hydrochloride) is often used to treat weight loss. Gabapentin (gabapentin) is often used to treat pain. 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).

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


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