Miralax (Polyethylene Glycol 3350)
Miralax is the brand name for Polyethylene Glycol 3350. Brand-name medications typically cost significantly more than their generic equivalents, but both contain the same active ingredient and meet the same FDA standards.
Polyethylene Glycol 3350 (Generic)
CheaperIs generic Polyethylene Glycol 3350 the same as Miralax?
- Generic Polyethylene Glycol 3350 contains the same active ingredient as Miralax, in the same strength and dosage form.
- Generic medications must meet FDA bioequivalence standards — the body absorbs them in the same way as the brand-name version.
- Inactive ingredients (dyes, fillers) can differ. If you have a sensitivity, mention it to your pharmacist.
- Most prescribers allow generic substitution unless they specifically mark "dispense as written" on the prescription.
- If you've been on Miralax and feel a generic version isn't working, talk to your prescriber.
How to save on Miralax (Polyethylene Glycol 3350)
Ask for generic substitution
If your prescription is written for Miralax, ask your pharmacist whether generic Polyethylene Glycol 3350 is appropriate for your case.
Compare cash prices
Cash prices for Miralax vary widely between pharmacies. ScriptUnlock surfaces the lowest available locally.
Manufacturer copay card
Miralax may offer a manufacturer copay card for insured patients. Check the official brand website.
Find the cheapest generic Miralax
Generic Miralax can cost significantly less than the brand version. Upload your prescription and let pharmacies compete on the lowest cash price.
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Miralax vs generic Polyethylene Glycol 3350: FAQs
Is generic Miralax the same as the brand-name version?
Generic medications contain the same active ingredient, in the same strength and dosage form, as their brand-name counterparts and must meet the same regulatory standards for safety and efficacy. Generic Miralax works the same way as the brand-name version.
Is generic Miralax cheaper?
Yes. Generic Miralax is typically much cheaper than the brand-name version. ScriptUnlock compares cash prices on generic Miralax across participating pharmacies to surface the lowest available price.
Can my pharmacy substitute generic Miralax for the brand-name prescription?
In most cases, yes — pharmacists can substitute the generic equivalent unless your prescriber specifies "dispense as written" on the prescription. Ask your pharmacist if generic Miralax is available.
How do I find the cheapest generic Miralax?
Compare cash prices across multiple pharmacies before filling. ScriptUnlock surfaces the lowest cash price on generic Miralax among participating pharmacies.
Are there side-effect differences between generic and brand Miralax?
Generic medications contain the same active ingredient as the brand-name version. Inactive ingredients can occasionally differ. Consult your pharmacist if you notice any change after switching to a generic version.