Demerol vs Fentanyl

Demerol
(Rx)
Fentanyl
(Rx)
Demerol is a pain relief medication (opioid).
Fentanyl is a pain relief medication (opioid).
Satisfaction Score
?
3.2
Moderately Satisfied
Satisfaction Score
?
3.2
Moderately Satisfied
Helpfulness
for Pain
2.2
Concern level
1.6
Helpfulness
for Pain
2.1
Concern level
1.4
Approval Date
+ -
November 10, 1942
October 4, 1993
Number of discussions around the web Number of discussions + -
34,307 Discussions
104,390 Discussions
Taken For
+ -
Condition
Number of posts
#1 for Pain
#2 for Migraines
#3 for Colonoscopy
#4 for Sedation
#5 for Severe Pain
#6 for Sedative
Demerol is prescribed for Pain and is mostly mentioned together with this indication.
Condition
Number of posts
#1 for Pain
#2 for Chronic Pain
#4 for Sedation
#5 for Fibromyalgia
#6 for Back Pain
#7 for Severe Pain
Fentanyl is prescribed for Pain and is mostly mentioned together with this indication.
Side Effects and Concerns
+ -
Dem
Contractions
5
Euphoria
2
Dizziness
2
Hallucinations
1
Burning
1
Blood Clots
1
Rash
1
Serotonin Syndrome
1
Low Blood Pressure
1
Nausea and Vomiting
1
Fen
Nausea
5
Euphoria
4
Dizziness
1
Rash
1
Hallucinations
1
Low Blood Pressure
1
Dry Mouth
1
Coma
1
Paranoia
1
Lack Of Sleep
1
Compare concerns
By:
Demerol
Dem
Fentanyl
Fen
Contractions
Dem
Fen
5
0
Euphoria
Dem
Fen
2
4
Dizziness
Dem
Fen
2
1
Hallucinations
Dem
Fen
1
1
Burning
Dem
Fen
1
0
Blood Clots
Dem
Fen
1
0
Rash
Dem
Fen
1
1
Serotonin Syndrome
Dem
Fen
1
0
Low Blood Pressure
Dem
Fen
1
1
Nausea and Vomiting
Dem
Fen
1
0
Nausea
Fen
Dem
5
0
Euphoria
Fen
Dem
4
2
Dizziness
Fen
Dem
1
2
Rash
Fen
Dem
1
1
Hallucinations
Fen
Dem
1
1
Low Blood Pressure
Fen
Dem
1
1
Dry Mouth
Fen
Dem
1
0
Coma
Fen
Dem
1
0
Paranoia
Fen
Dem
1
0
Lack Of Sleep
Fen
Dem
1
0
Pregnancy Category (FDA) OpenClose all pregnancy categories
+ -
a b c d x n
Category A
Adequate and well-controllted studies have failed to demonstrate a risk to the fetus in the first trimester of pregnancy (and there is no evidence of risk in later trimesters).
Category B
Animal reproduction studies have failed to demonstrate a risk to the fetus and there are no adequate and well-controlled studies in pregnant women.
Category C
Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.
Category D
There is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience or studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.
Category X
Studies in animals or humans have demonstrated fetal abnormalities and/or there is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience, and the risks involved in use of the drug in pregnant women clearly outweigh potential benefits.
Category N
FDA has not classified the drug.
close
C Category C
Before taking Demerol during pregnancy, consult your doctor or pharmacists to weigh the risks and benefits.
C Category C
Before taking Fentanyl during pregnancy, consult your doctor or pharmacists to weigh the risks and benefits.
Alcohol warning
+ -
There may be a negative interaction between Demerol and alcohol.
There may be a negative interaction between Fentanyl and alcohol.
Method of use
+ -
Injection, Pill, Syrup
Dosages
+ -
Solution: 75 mg/1.5 mL, 50 mg/5 mL, 50 mg/mL, 100 mg/mL
Syringe: 25 mg/mL, 50 mg/mL, 75 mg/mL, 100 mg/mL
Tablet: 50 mg, 100 mg
Patch: 37.5 mcg/hour, 62.5 mcg/hour, 87.5 mcg/hour, 12 mcg/hr, 25 mcg/hr, 50 mcg/hr, 75 mcg/hr, 100 mcg/hr
Spray: 100 mcg/spray, 200 mcg/spray, 400 mcg/spray, 600 mcg/spray, 800 mcg/spray, 1200 mcg (600 mcg/spray X 2), 1600 mcg (800 mcg/spray X 2)
: 25 mcg/hr, 50 mcg/hr, 75 mcg/hr, 100 mcg/hr
Food Instructions
+ -
No Food Instructions
Avoid grapefruit juice or discuss with your doctor because grapefruit may increase drug effect.
Ingredients
+ -
Meperidine Hcl , Meperidine Hcl/Pf
Fentanyl, Fentanyl Citrate/Pf, Fentanyl Citrate
Drug Interactions
+ -
Interaction between Demerol and Fentanyl: Interaction not known, but may still exist. Always consult your doctor before taking these medications together. Do not stop taking the medications without a physician's advice.
Read more about:
Demerol
Read more about:
Fentanyl
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We found 1,372 discussions
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Demerol -vs- Fentanyl
| Jonathan
I passed a 1 cm kidney stone while on Demerol with no pain whatsoever. After a later surgery (cranial) they gave me Fentanyl and the stuff hardly worked at all. I ended up asking for hydrocodone which was more effective. But I've never had much luck with morphine, either. It's odd how a painkiller can work for some but not for others.

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The side effects featured here are based on those most frequently appearing in user posts on the Internet. The manufacturer's product labeling should always be consulted for a list of side effects most frequently appearing in patients during clinical studies. Talk to your doctor about which medications may be most appropriate for you.
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