Key Takeaways

• Gabapentin 300 mg capsules are typically yellow or brown-yellow, oblong, about 19 mm, with a manufacturer-specific imprint code.

• Common imprints include IG322, SG 180, 215, IP 102, R 2666, AHD 300, A 470, and D 03.

• If your pill looks different from last time, your pharmacy likely switched generic suppliers, but always verify imprint to be sure.

What Are Most Common Gabapentin 300 mg Imprints?

Several manufacturers produce gabapentin 300 mg capsules, and each uses a different imprint code. Here are ones you are most likely to encounter.

• IG322 300 mg: Yellow capsule, 21 mm, made by InvaGen Pharmaceuticals.

• SG 180: Yellow capsule, 19 mm, made by ScieGen Pharmaceuticals.

• 215: Yellow capsule, 19 mm, made by American Health Packaging.

• IP 102: Beige capsule, made by Amneal Pharmaceuticals.

• R 2666: Brown and yellow capsule, 19 mm, made by Actavis.

• AHD 300: Brown and yellow capsule, 19 mm, made by ACI Healthcare.

• A 470: Yellow capsule, 19 mm, made by Ascent Pharmaceuticals.

• D 03: Yellow capsule, made by Aurobindo Pharma.

All of these contain same active ingredient (gabapentin 300 mg) and work same way in your body. The differences are only in inactive ingredients and appearance, which vary by manufacturer.

If imprint on your pill does not match any of these, or if your pill has no imprint at all, do not take it until you have confirmed what it is. Pills without imprints could be vitamins, supplements, or unregulated products. You can verify any imprint through National Library of Medicine's pill identification resources: MedlinePlus gabapentin drug information.

What Does Brand Name Gabapentin 300 mg Look Like?

The brand name version is Neurontin, made by Pfizer. Neurontin 300 mg capsules are typically yellow with "Neurontin 300 mg" printed on them along with Pfizer logo. They are same oblong capsule shape as generics.

You are much more likely to receive a generic version since gabapentin has been available in generic form since 2004 and most pharmacies dispense generics by default. If your pill looks different from what you received last time, it may simply mean your pharmacy switched to a different generic manufacturer. This happens regularly and does not change medication's effectiveness.

Why Does My Pill Look Different From Last Time?

Pharmacies often switch generic suppliers based on availability and cost. When that happens, new capsule may be a different shade of yellow, have a different imprint code, or come from a different manufacturer. This can be alarming if you are not expecting it, but it does not mean medication is wrong.

If you want to double check, compare imprint code on your new pill against list above. You can also ask your pharmacist to confirm that new pill is same medication and dosage. They deal with manufacturer switches all time and can reassure you quickly.

For more on what gabapentin does and how it might affect you, this article on does gabapentin make you sleepy covers one of most common questions people have about medication. And if you were prescribed it for pain, this guide on gabapentin for tooth pain explains how it works for that specific use.

Conclusion

Gabapentin 300 mg capsules are almost always yellow or yellow-brown, oblong, and around 19 mm in size. The imprint code on capsule is what identifies exact manufacturer and confirms it is gabapentin. If your pill looks different from a previous fill, it is likely just a generic manufacturer switch. When in doubt, check imprint or ask your pharmacist.

Frequently Asked Questions

Yes. All gabapentin 300 mg capsules contain the same active ingredient regardless of which manufacturer made them. Differences between generics are limited to inactive ingredients like fillers, dyes, and coatings, which affect how capsule looks but not how medication works. So a yellow IG322 capsule from InvaGen and a beige IP 102 capsule from Amneal both deliver identical 300 mg of gabapentin to your body. If you notice a change in how you feel after your pharmacy switches manufacturers, mention it to your pharmacist, as inactive ingredients can occasionally cause mild reactions in sensitive patients.

Do not take it. All FDA-approved prescription medications sold in the United States are required by law to have imprint codes for identification. A pill without any imprint could be a supplement, a foreign medication, an expired product, or something else. If you find an unmarked yellow capsule that someone told you is gabapentin, take it to your pharmacist for verification before taking it. Your pharmacist can either confirm what it is or safely dispose of it. Never assume an unmarked pill is safe, even if it comes from a trusted source.

Several free resources can help you identify prescription pills by imprint. The National Library of Medicine's MedlinePlus and DailyMed databases list every FDA-approved medication with photos and imprint details, Online tools like the Drugs.com and WebMD Pill Identifiers allow you to search directly by imprint code, color, and shape.. Poison Control (1-800-222-1222) can also identify pills over the phone if you cannot access the internet. Type imprint exactly as it appears, including any spaces, letters, or numbers. If the pill identifier gives multiple matches, use color, shape, and size to narrow down. 

Different manufacturers use different dyes and coatings, which is why gabapentin 300 mg capsules can range from bright yellow to beige to brown-yellow depending on the brand. Color has no effect on how medication works. The variety exists because manufacturers use their own formulations for inactive ingredients, and dye is one of those ingredient choices. you should contact your pharmacist if a new batch smells different, tastes unusual, or seems to affect you differently. But color variation alone is normal and expected when your pharmacy switches generic suppliers.

Only if it has not expired and the imprint still matches manufacturer information on the label. Expired gabapentin can lose its potency and be less effective, even if it does not become harmful. Do not take gabapentin from a bottle prescribed for someone else, and do not assume old capsules in your medicine cabinet are still gabapentin without checking the imprint. If you have unused gabapentin from a previous prescription and your doctor recently re-prescribed it, ask your pharmacist whether your old supply is still safe to finish.