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About Relistor

METHYLNALTREXONE treats constipation caused by opioids. It works by blocking the effect of opioids in your intestine, which helps the muscles in your intestine move stool. This helps produce a bowel movement. It belongs to a group of medications called opioid blockers.

With the Patient Assistance Program from Salix Pharmaceuticals, you can receive your medication at no cost. Learn about saving on prescription medications with GoodRx Companion.

Relistor

Methylnaltrexone Bromide

Relistor

Drug Info Brand-name medications Side Effects Dosage Medicare

Relistor

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Other Opioid Antagonists

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Relistor prices by dosage

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Dosage	Quantity	Retail price	GoodRx price

Default quantities vary by dosage and the displayed quantity represents the most commonly filled. Retail prices shown are the average costs that users pay for these drugs, and do not reflect pharmacy pricing in your specific location.
Dosage	Quantity	Retail price	GoodRx price

150mg

90 tablets

$3,588.97

0.4ml of 8mg/ 0.4ml

7 syringes

$1,808.16

0.6ml of 12mg/ 0.6ml

1 syringe

N/A

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Relistor is a brand-name medicationLearn how to save on brand-name medications

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See more about Constipation

What’s the Best Laxative or Stool Softener to Take for Constipation?

What’s the Best Laxative or Stool Softener to Take for Constipation?

Written By Alyssa Billingsley, PharmD

Are Laxatives Safe for Weight Loss? Why It’s Best to Avoid Them

Are Laxatives Safe for Weight Loss? Why It’s Best to Avoid Them

Written By Vanessa Carranza, PharmD

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$

1,439

Retail: $1,808

GoodRx coupon prices last updated on 09/09/26.

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