prescription drugs
Free drug information service 
All available medical information about prescription drugs 

Demerol

What is Demerol

Demerol is in a class of drugs called narcotic analgesics. It relieves pain.

Demerol is used to treat moderate-to-severe pain.

Demerol may also be used for purposes other than those listed in this medication guide.

General medical information about Demerol

Demerol may be habit forming. Physical and/or psychological dependence can occur, and withdrawal effects are possible if the medication is stopped suddenly after prolonged or high-dose treatment. Do not stop taking Demerol suddenly without first talking to your doctor if you have been taking it continuously for more than 5 to 7 days. Your doctor may want to gradually reduce the dose.

Demerol may increase the effects of other drugs that cause drowsiness, including other pain relievers, alcohol, antihistamines, sedatives (used to treat insomnia), antidepressants, anxiety medicines, and muscle relaxants. Tell your doctor about all medicines that you are taking, and do not take any medicine without first talking to your doctor.

Demerol may cause constipation. Drink plenty of water (six to eight full glasses a day) to lessen this side effect. Increasing the amount of fiber in the diet can also help to alleviate constipation.

Never take more Demerol than is prescribed. If the pain is not being adequately treated, talk to your doctor.

What you should find out before taking Demerol

Demerol may be habit forming and should only be used under close supervision if there is a history of alcohol or drug addiction.

Before taking this medication, tell your doctor if you have:
- kidney disease;
- liver disease;
- asthma;
- urinary retention;
- an enlarged prostate;
- hypothyroidism;
- seizures or epilepsy;
- gallbladder disease;
- a head injury; or
- Addison's disease.

You may not be able to take Demerol, or you may require a dosage adjustment or special monitoring during treatment if you have any of the conditions listed above.

Demerol may cause addiction and withdrawal symptoms as well as other harmful effects in an unborn baby. Do not take Demerol without first talking to your doctor if you are pregnant or could become pregnant during treatment.

Demerol may also cause addiction and withdrawal symptoms in a nursing infant. Do not take Demerol without first talking to your doctor if you are breast-feeding a baby.

How should take Demerol

Take Demerol exactly as directed by your doctor. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.

Take each dose with a full glass of water.

Take Demerol with food or milk if it causes stomach upset.

To ensure that you get a correct dose, measure the syrup with a special dose-measuring spoon or cup, not with a regular tablespoon. If you do not have a dose-measuring device, ask your pharmacist where you can get one.

Demerol is also available as an injection. Your healthcare provider will administer injectable Demerol. If you are using injectable Demerol at home, your healthcare provider will give you detailed instructions regarding preparation, administration, and storage of the medication.

Never take more Demerol than is prescribed. If the pain is not being adequately treated, talk to your doctor.

Demerol may be habit forming. Physical and/or psychological dependence can occur, and withdrawal effects are possible if the medication is stopped suddenly after prolonged or high-dose treatment. Do not stop taking Demerol suddenly without first talking to your doctor if you have been taking it continuously for more than 5 to 7 days. Your doctor may want to gradually reduce the dose.

Demerol may cause constipation. Drink plenty of water (six to eight full glasses a day) to lessen this side effect. Increasing the amount of fiber in the diet can also help to alleviate constipation.

Do not share this medication with anyone else.

Store Demerol at room temperature away from moisture and heat.

If you miss a dose:

Take the missed dose as soon as you remember. Do not take a double dose of this medication. Wait the prescribed amount of time before taking the next dose.

What happens if you overdose:

Seek emergency medical attention if an overdose is suspected.

Symptoms of a Demerol overdose include slow breathing, seizures, dizziness, weakness, loss of consciousness, coma, confusion, tiredness, cold and clammy skin, and small pupils.

Avoid while taking Demerol

Use caution when driving, operating machinery, or performing other hazardous activities. Demerol may cause drowsiness. If you experience drowsiness, avoid these activities.

Avoid alcohol while taking Demerol. Alcohol may increase the drowsiness and dizziness caused by Demerol and could be dangerous.

Demerol may increase the effects of other drugs that cause drowsiness, including other pain relievers, alcohol, antihistamines, sedatives (used to treat insomnia), antidepressants, anxiety medicines, and muscle relaxants. Tell your doctor about all medicines that you are taking, and do not take any medicine without first talking to your doctor.

Possible side effects of Demerol

If you experience any of the following serious side effects, stop taking Demerol and seek emergency medical attention or contact your doctor immediately:
- an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives);
- slow, weak breathing;
- seizures;
- cold, clammy skin;
- severe weakness or dizziness; or
- unconsciousness.

Other, less serious side effects may be more likely to occur. Continue to take Demerol and talk to your doctor if you experience
- constipation;
- dry mouth, nausea, vomiting, or decreased appetite;
- dizziness, tiredness, or lightheadedness;
- muscle twitches;
- sweating;
- itching;
- decreased urination; or
- decreased sex drive.

Demerol may be habit forming. Physical and/or psychological dependence can occur, and withdrawal effects are possible if the medication is stopped suddenly after prolonged or high-dose treatment. Do not stop taking Demerol suddenly without first talking to your doctor if you have been taking it continuously for more than 5 to 7 days. Your doctor may want to gradually reduce the dose.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

What other drugs will affect Demerol

Do not take Demerol if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), phenelzine (Nardil), or tranylcypromine (Parnate) in the last 14 days. Dangerous side effects could result.

Demerol may increase the effects of other drugs that cause drowsiness, including other pain relievers, alcohol, antihistamines, sedatives (used to treat insomnia), antidepressants, anxiety medicines, and muscle relaxants. Tell your doctor about all medicines that you are taking, and do not take any medicine without first talking to your doctor.

Drugs other than those listed here may also interact with Demerol. Talk to your doctor and pharmacist before taking any prescription or over-the-counter medicines, including vitamins, minerals, and herbal products.

All prescription drugs:

A
abilify accupril accutane acetaminophen aciphex actifed actonel actos acyclovir adalat adderall adipex advair advil albuterol alesse aleve allegra allopurinol amaryl ambien amiodarone amitriptyline amoxicillin amoxil amphetamine anacin aprazolam aricept asacol aspirin atenolol ativan atorvastatin atrovent augmentin avandia avapro avastin avelox azmacort
B
baclofen
bactrim bactroban baycol benadryl bextra biaxin boniva bontril buspar buspirone
C
caduet campral camptosar capoten captopril cardizem cardura carisoprodol casodex catapress cefzil celebrex celexa cellcept cephalexin cialis cipro ciprodex clarinex claritin climara clindamycin clonazepam clonidine codeine codeprex combivent combivir concerta copaxone coreg coricidin cotrim coumadin cozaar crestor cubicin cyclobenzaprine cymbalta
D
darvocet demerol depakote desogen detrol dextromethorphan diazepam diclofenac didrex diflucan digoxin dilantin diltiazem dimetapp diovan diprivan ditropan doxazosin doxycycline drixoral duragesic dyazide
E
effexor elavil elocon eloxatin emend enalapril enbrel endocet engerix-b entex epogen epzicom erbitux ertaczo ery-tab erythromycin estradiol evista 
F
fabrazyme famotidine fazaclo fenofibrate fioricet fiorinal flexeril flomax flonase flovent fluoxetine fosamax fosrenol furosemide  
G
gabapentin gamimune gemfibrozil gemzar glipizide glucophage glucotrol glucovance glyburide glyburide guaifenesin guaifenex 
H
herceptin humalog humira hydroxyzine hyzaar  
I
ibuprofen imdur imitrex imodium inderal insulin integrilin iressa 
K
kaletra keflex kenalog keppra ketek klonopin kytril  
L
lamictal lamisil lanoxin lantus lasix lescol levaquin levitra levothyroxine levoxyl lexapro lidoderm lipitor lisinopril lithium lorazepam lortab lotensin lotrel lotrisone lovenox lupron luveris  
M
macrobid magnevist meclizine medroxyprogesterone meridia metformin methadone methamphetamine methotrexate methylphenidate methylprednisolone metoclopramide metoprolol metronidazole miacalcin minocycline mobic monopril morphine motrin myfortic  
N
naproxen nasacort nasonex natrecor neulasta neupogen neurontin nexium nifedipine nitrofurantoin norco nortriptyline norvasc  
O
omeprazole omnicef orthovisc oxybutynin oxycodone oxycontin oxytrol  
P
paraplatin patanol paxil pegasys penicillin pepcid percocet percodan percogesic phendimetrazine phenergan phentermine phenytoin plavix plendil potassium pravachol prednisone premarin prempro prevacid prilosec prinivil procrit promethazine propecia propofol propoxyphene propranolol protonix proventil provigil prozac pseudoephedrine pulmicort  
R
ranitidine rebetol reglan relafen relpax remeron remicade renagel renova rhinocort riomet risperdal risperidone ritalin rituxan rocephin rogaine roxicet  
S
sanctura seasonale sensipar serevent seroquel serzone singulair skelaxin soma somavert sonata spiriva spironolactone strattera striant sustiva synagis synthroid 
T
tamoxifen tavist taxol taxotere tegretol temazepam tenormin tenuate tequin terazosin tetracycline tiazac tindamax titralac tobradex topamax toprol tramadol trazodone triamcinolone triaminic triamterene tricor trileptal trimox triphasil trizivir truvada tylenol 
U
ultane ultracet ultram uroxatral
V
valium valtrex vaniqa vasotec velcade verapamil viagra vicodin vicoprofen vidaza viracept viread vytorin  
W
warfarin wellbutrin  
X
xalatan xanax xenical xifaxan xolair xopenex xyrem  
Y
yasmin 
Z
zanaflex zantac zavesca zelnorm zemplar zerit zestoretic zestril zetia ziac zithromax zocor zofran zoladex zoloft zometa zorbtive zosyn zovirax zyrtec zyvox