Can You Refill Gabapentin Early?

In our latest question and answer, the pharmacist discusses whether or not gabapentin prescriptions can legally be filled early.

Question

I refilled gabapentin on May 2nd for a thirty-day supply. Can I refill them on May 30? I take four a day.

Asked by Pete On May 30, 2022

Answered by
Medical Content Reviewed By HelloPharmacist Staff

Published May 31, 2022
Last updated Mar 29, 2024

Key points

  • Gabapentin is not a federally controlled substance but is a controlled substance in several states, including Virginia, Alabama, and Kentucky.
  • In general, gabapentin can be filled a little early (i.e. a few days before you are 'due') if you are in a state where it is not a controlled substance, but how early will depend on several factors including your insurance company, your pharmacy, and your medical history.
  • If you live in a state where it is a controlled substance, laws will be more strict regarding how early, and often, you can fill it.
  • Gabapentin has increasingly been linked to abuse and misuse, so even though it is not a controlled substance in some states, early fills may be more heavily looked into by your pharmacy.

Thanks for reaching out to us!

When it comes to questions regarding rules and regulations around pharmacy and filling prescriptions, I can certainly give some general advice and thoughts.

I always like to add the caveat though that laws tend to vary by state and individual pharmacy, so it's tough to definitively answer your question.

Since you are asking about when you are allowed to refill your gabapentin prescription, I highly recommend asking your local pharmacy as they will have the exact date when you can fill it.

Ok, having said that, let's move on to talking about gabapentin in general, and the rules regarding it.

Is Gabapentin A Controlled Substance?

First and foremost, how early you can legally fill gabapentin will be heavily dependent on where you live.

Gabapentin is not a federally classified controlled substance but is classified as a controlled substance in several states. These states include:

  • Alabama
  • Kentucky
  • Mississippi
  • North Dakota
  • Tennessee
  • Virginia
  • West Virginia

If you live in a state where gabapentin is a controlled substance, how early you can fill it will be much more strict compared to being in a state where it is not a controlled substance.

Since there are several states where it is a controlled substance, and all of their respective laws vary, I'll be focusing on states where it is not a controlled substance.

Gabapentin Refilling

So, If you live in a state where it is not a controlled substance, it will not have many of the refill restrictions around it like many controlled substances do.

Technically, gabapentin (if you live in a state where it is not a controlled drug) can be treated like any other non-controlled prescription drug in regard to refills and can generally be filled a little early if you need it (for a legitimate reason). There is no specific legal requirement around gabapentin regarding how soon (i.e. early) you can fill it in these cases.

However, there are still some unknowns here, even if you live in a 'non-control' state.

For one, if you pay with insurance, you have to take that into account.

Insurance companies will generally let you fill a prescription a little before you are 'due', but just how early, can vary on the specific insurance company and your fill history.

Additionally, you have to take into account the rules of your pharmacy. They may have specific rules around how early prescriptions can be filled, especially gabapentin.

I say 'especially gabapentin' because, even though it is not a controlled substance in some states, there have been studies showing it does have abuse potential, and pharmacists are legally allowed to use their professional judgment to prevent prescription misuse, abuse, and diversion.

Gabapentin Abuse

Even though gabapentin is not a controlled substance in some states, your pharmacist may be wary of filling it too early, or early consistently, when compared to drugs.

There have been several studies showing gabapentin is increasingly being abused, especially in those who take opioids.

The CDC and FDA have both released statements warning of gabapentin use. Here is one such statement:

“Reports of gabapentinoid abuse alone, and with opioids, have emerged and there are serious consequences of this co-use, including respiratory depression and increased risk of opioid overdose death."
FDA In Brief: FDA requires new warnings for gabapentinoids about risk of respiratory depression

I mention this here just to emphasize that early fills of gabapentin may be more heavily scrutinized by your pharmacist/pharmacy than other drugs.

Some states, even where gabapentin is not a control, still require prescription fills of it to be reported to state monitoring systems (just like all controlled substance drugs).

Early Fills

You didn't give too much context in your question about your situation, and you don't mention where you are located, so it's challenging to give you specific insights.

You mentioned you got your initial prescription on May 2nd, and want to refill it on May 30th.

Assuming you got a 30-day supply on May 2nd, May 30th represents only a couple of days being you are 'due'. You are 2 days early.

On the surface, without knowing more about your specific situation, I would assume this would be fine for both your insurance company to pay for and your pharmacy to fill if you are in a 'non-control' state.

As long as you haven't consistently filled it early too often in the past, or have any indicators that it wouldn't be taken as directed, this doesn't seem like a situation where you wouldn't be able to fill it.

If you live in a state where it is a controlled substance, the laws may be more strict, and you should ask them directly.

Final Words

Thanks again for your question and please feel free to reach out with any other concerns or more information!

I hope this answer helped! For the most precise information for your situation, please talk to the pharmacy where you get your prescription filled.

References

  • ABUSE AND MISUSE OF GABAPENTIN, University of Utah
  • Notes from the Field: Trends in Gabapentin Detection and Involvement in Drug Overdose Deaths — 23 States and the District of Columbia, 2019–2020, CDC
  • FDA In Brief: FDA requires new warnings for gabapentinoids about risk of respiratory depression, FDA
  • Small Study Reports Troubling Abuse Potential for Gabapentin, USPharmacist
  • Characterization of gabapentin use in Kentucky after reclassification as a Schedule V controlled substance, PubMed

About the Pharmacist

Dr. Brian Staiger, PharmD

Dr. Brian has been practicing pharmacy for over 13 years and has wide-ranging experiences in many different areas of the profession. From retail, clinical, program development, and administrative responsibilities, he's your knowledgeable and go-to source for all your pharmacy and medication-related questions! Dr. Brian Staiger also has herbalist training and educational certificates in the field of medical ethnobotany. Feel free to send him an email at [email protected]! You can also connect with Dr. Brian Staiger on LinkedIn.

Recent Questions