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Review: taking Fentanyl and Demerol together

Summary: drug interactions are reported among people who take Fentanyl and Demerol together.

This review analyzes the effectiveness and drug interactions between Fentanyl and Demerol. It is created by eHealthMe based on reports of 276 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 Fentanyl and Demerol >>>

On Apr, 2, 2015: 276 people who take Fentanyl, Demerol are studied

Fentanyl, Demerol outcomes

Drug combinations in study:
- Fentanyl (fentanyl citrate)
- Demerol (meperidine hydrochloride)

Drug effectiveness over time :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
Fentanyl is effective100.00%
(1 of 1 people)
Demerol is effectiven/a0.00%
(0 of 1 people)

Drug effectiveness by gender :

Fentanyl is effective100.00%
(1 of 1 people)
Demerol is effective0.00%
(0 of 1 people)

Drug effectiveness by age :

Fentanyl is effectiven/an/an/an/an/a100.00%
(1 of 1 people)
Demerol is effectiven/an/an/an/an/a0.00%
(0 of 1 people)

Most common drug interactions over time * :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
Abdominal PainSleep DisorderRoad Traffic AccidentSubstance AbuseDental Cariesn/an/aPain
VomitingTremorDepressionDental CariesNausea
PainPanic AttackCondition AggravatedNauseaAnxiety
NauseaSubstance AbuseHead InjuryDepressionDepression
Liver Function Test AbnormalNauseaMulti-organ FailurePanic AttackAnaemia
ThrombocytopeniaWithdrawal SyndromeRespiratory DisorderSleep DisorderPyrexia
Chest PainDrug Withdrawal SyndromeUnresponsive To StimuliWithdrawal SyndromeVomiting
Muscle SpasmsDental CariesRadiculopathyTremorInjury
Neutropenic InfectionEmotional DistressPainToothacheOsteonecrosis Of Jaw
Cardiac ArrestAppetite DisorderMyocardial InfarctionPolysubstance DependenceBack Pain

Most common drug interactions by gender * :

Back PainAbdominal Pain
Neck PainOsteonecrosis Of Jaw
Spinal OsteoarthritisAnxiety
Weight DecreasedDiabetes Mellitus

Most common drug interactions by age * :

Grand Mal Convulsionn/aPancytopeniaLiver Function Test AbnormalPyrexiaNauseaPneumoniaPain
Cholecystitis NosVomitingHaemorrhoidsNeck PainBronchitisNausea
CholelithiasisPainBack PainDepressionCoughAsthenia
Abdominal Pain NosChest PainAnaemiaPainAnaemiaOsteonecrosis Of Jaw
HaematemesisFebrile NeutropeniaPelvic PainDental CariesNauseaAbdominal Pain
Bile Duct Obstruction NosNauseaInjuryPyrexiaDyspnoeaCholelithiasis
Pain NosConfusional StateRash ErythematousBack PainPleural EffusionDiabetes Mellitus
Visual Disturbance NosMuscle SpasmsOverdoseAnhedoniaDizzinessDiarrhoea
Liver Function Tests Nos AbnormalNeutropenic InfectionNauseaImpaired HealingWeight IncreasedAnaemia
PruritusHallucinationFallIntervertebral Disc ProtrusionDepressionCholecystitis

* 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 Fentanyl and Demerol?




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

Recent related drug studies (Check your drugs):

Complete drug side effects:

On eHealthMe, Fentanyl (fentanyl citrate) is often used to treat pain. Demerol (meperidine hydrochloride) 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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