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Prostaglandin E2

 
Drug Info: Dinoprostone, Prostaglandin E2

Brand names: Cervidil™Prepidil®Prostin E2®

Chemical formula:



Dinoprostone, Prostaglandin E2 vaginal suppositories

What are dinoprostone vaginal suppositories?

DINOPROSTONE, PROSTAGLANDIN E2 (Prostin E2®) stimulates contractions to empty the uterus after an incomplete abortion or miscarriage, or when fetal death occurs. Dinoprostone is used when necessary to induce abortion between the 12th and 20th week of pregnancy, as calculated from the first day of the last normal menstrual period. Dinoprostone is also used for a condition called hydatidiform mole. Generic dinoprostone vaginal suppositories are not yet available.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of the following conditions:
• anemia
• asthma
• diabetes
• heart, liver, lung, or kidney disease
• high or low blood pressure
• seizure disorder (convulsions)
• uterine surgery
• vaginal inflammation or infection
• an unusual or allergic reaction to dinoprostone, prostaglandins, other medicines, foods, dyes, or preservatives

How should I use this medicine?

A dinoprostone vaginal suppository is inserted high in the vagina by a health-care professional in a hospital or clinic setting. Remove the foil wrapping before use. After insertion of the suppository remain lying down for ten minutes. Further doses can be used at intervals of 3 to 5 hours, until the prostaglandin is effective. Prostaglandin should not be used for more than 2 days.

Contact your pediatrician or health care professional regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

This does not apply.

What drug(s) may interact with dinoprostone?

oxytocin

Tell your prescriber or health care professional about all other medicines you are taking, including non-prescription medicines, nutritional supplements, or herbal products. Also tell your prescriber or health care professional if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines.

What should I watch for while taking dinoprostone?

Your condition will be closely monitored while you use dinoprostone.

Dinoprostone can make other muscles outside the uterus contract and cause side effects. Most of these effects will go away quickly. Contact your prescriber or health care professional at once if you get an unpleasant vaginal discharge, continued fever, chills and shivering, or increase in vaginal bleeding several days after treatment.

What side effects may I notice from using dinoprostone?

Side effects that you should report to your prescriber or health care professional as soon as possible:
• chest pain or tightness in the chest
• continuous or excessive vaginal bleeding
• fast or irregular heartbeat (palpitations)
• lightheadedness or fainting spells
• pale, cool, blotchy skin
• pelvic area pain
• skin rash or itching (hives)
• stomach pain, or severe cramping pains
• unusual swelling of the face, nose, or eyelids
• wheezing or difficulty breathing

Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome):
• diarrhea
• dizziness
• fever
• flushing of the skin
• headache
• nausea, vomiting

Where can I keep my medicine?

Keep out of the reach of children.

Store in a freezer below —20 degrees C (—4 degrees F). Restore to room temperature immediately before use. Throw away any unused suppositories after the expiration date.


Last updated: 7/1/2002

Important Disclaimer: The drug information provided here is for educational purposes only. It is intended to supplement, not substitute for, the diagnosis, treatment and advice of a medical professional. This drug information does not cover all possible uses, precautions, side effects and interactions. It should not be construed to indicate that this or any drug is safe for you. Consult your medical professional for guidance before using any prescription or over the counter drugs.

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Wikipedia: Prostaglandin E2
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Prostaglandin E2
Systematic (IUPAC) name
7-[3-hydroxy-2-(3-hydroxyoct-1-enyl)- 5-oxo-cyclopentyl] hept-5-enoic acid
Identifiers
CAS number 363-24-6
ATC code G02AD02
PubChem 9691
DrugBank APRD00927
Chemical data
Formula C20H32O5 
Mol. mass 352.465 g/mol
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.

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Legal status
Routes  ?
 Yes check.svgY(what is this?)  (verify)

The naturally occurring prostaglandin E2 (PGE2) is known in medicine as dinoprostone. It has important effects in labour (softens cervix and causes uterine contraction) and also stimulates osteoblasts to release factors which stimulates bone resorption by osteoclasts. PGE2 is also the prostaglandin that ultimately induces fever.

It is sold under the trade name of Cervidil (by Forest Laboratories, Inc.), Prostin E2 (by Pfizer Inc.), Propess (by Ferring Pharmaceuticals)and Glandin (by Nabiqasim Pharmaceuticals Pakistan)as a vaginal suppository, to prepare the cervix for labour; it is used to induce labour.

The chemical name is (5Z,11(alpha),13E,15S)-11,15-Dihydroxy-9-oxo-prosta-5,13-dien-1-oic acid.

Like other prostaglandins, dinoprostone can be used as an abortifacient. It is a direct vasodilator, relaxing smooth muscles, and it inhibits the release of noradrenaline from sympathetic nerve terminals. It does not inhibit platelet aggregation, where PGI2 does.

It works by binding and activating the prostaglandin E2 receptor.

It was discovered by Bunting, Gryglewski, Moncada and Vane in 1976.

References

Pharmacology 2007. Rang, Ritter, Dale, Flower. Churchill Livingstone Elsevier.

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Drug Info. Gold Standard. Copyright © 2008 by Gold Standard. All rights reserved.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Prostaglandin E2" Read more