What Is Your Round White Pill? 21 Possibilities (2024)

What Is Your Round White Pill? 21 Possibilities (1)

Have a round white pill in a baggie or pillbox and you aren’t sure what it is? Trying to figure out what the loose white round pill with a numbered imprint in the bottom of your medicine drawer is?

In this guide to identifying your white round pill, we’ll go over how to identify an unknown white round pill and include some common round white pills with different imprints to help you identify your mysterious medication!

Identifying Your Round White Pill: Safety Note

Before we describe how to identify your round white pill, here are a couple of important safety notes on unidentified pills:

#1: Don’t Take a Pill If You Aren’t Sure What It Is

Unless you are absolutely, positively, 100% sure that you’ve successfully identified your white round pill, don’t take it. Taking medication when you aren’t 100% sure what you’re taking is incredibly dangerous and could even lead to death depending on what the pill is and what else you’re taking.

#2: Don’t Take Pills That Weren’t Prescribed to You

Even if you successfully identify the pill in question, what should you do if it’s not something that’s been prescribed to you? If you identify a prescription medication that wasn’t prescribed to you, don’t take it. It’s very dangerous to take pills that weren’t prescribed to you because a doctor has not assessed whether that medication is safe for you to take.

Also, it’s best to keep pills in their original bottles as much as possible so that you don’t end up with unidentified little white round pills floating around. But if you’re reading this article, it’s too late for that! Just something to keep in mind for the future.

What Is Your Round White Pill? 21 Possibilities (2)

This doesn't look like the original bottle!

3 Steps to Identifying Your Round White Pill

Here is our 3-step process to identifying your white round pill:

Step 1: Check Imprint/Pill Code

Many pills have some kind of number or letter combination imprinted on one or both sides. This is known as the imprint or the pill code.

The first thing to do is check whether there’s any kind of stamp on either side of your white round pill. If yes, note down what it is. A white round pill with an imprint will be much easier to identify than a circle white pill without one.

Step 2: Measure Pill Size

Are you dealing with a small round white pill? A medium-sized one? A big one? Measuring your pill’s exact length in millimeters will help you identify it, especially if your pill has an imprint that other, different medications also have.

Step 3: Look Up Pill

We have some common imprints (with sizes) listed in the next section of this article. (You can ctrl+F to try to find the imprint/pill code you are looking for). If the pill you’re looking for isn’t listed below, you can look up pills by size, shape, color, and imprint on the National Library of Medicine’s Pillbox site.

Note that some pills share an imprint. For example, a small round white pill with an imprint of 10 could be hyoscyamine sulfate, iloperidone, alendronate sodium, or one of several other drugs.

Knowing the size might help you narrow it down, but then again, maybe not: both hyoscyamine sulfate and alendronate sodium come in 5 mm pills. The pictures of the pills are slightly different, but not all the pills in Pillbox have pictures.

If you can’t determine definitively what the pill is, don’t take it, and follow safe disposal practices per the FDA.

What Is Your Round White Pill? 21 Possibilities (3)

Get out that ruler and get ready to measure!

Common Round White Pills

In this section, we’ll go over common white round pills by imprint or pill code. We’ll also give a size, identify the drug and what it’s for, and list what else the medication is sold as. We've included an image of the pill from Pillbox when an image is available.

Pill codes that identify the same or similar drugs are grouped together.

Round White Pill AN 627

What Is Your Round White Pill? 21 Possibilities (4)

Tramadol hydrochloride. Source: Pillbox.

Size: 9 mm

What it is: Tramadol hydrochloride 50 mg

What it’s for: Prescription-only opioid pain reliever for moderate to severe pain

Also sold as: Ultram

Round White Pill 319

Size: 9 mm

What it is: Tramadol hydrochloride 50 mg

What it’s for: Prescription-only opioid pain reliever for moderate to severe pain

Also sold as: Ultram

Round White Pill 512

What Is Your Round White Pill? 21 Possibilities (5)

Oxycodone and acetaminophen. Source: Pillbox.

Size: 12 mm

What it is: Oxycodone 5 mg / Acetaminophen 325 mg

What it’s for: Prescription-only opioid/narcotic pain reliever for moderate to severe pain

Also sold as: Percocet, Endocet, Roxicet

Round White Pill A349

Size: 12 mm

What it is: Oxycodone 5 mg / Acetaminophen 325 mg

What it’s for: Prescription-only opioid/narcotic pain reliever for moderate to severe pain

Also sold as: Percocet, Endocet, Roxicet

Round White Pill 54 543

What Is Your Round White Pill? 21 Possibilities (6)

Roxicet oxycodone and acetaminophen. Source: Pillbox.

Size: 11 mm

What it is: Oxycodone 5 mg / Acetaminophen 325 mg; this particular imprint is the brand-name Roxicet

What it’s for: Prescription-only opioid/narcotic pain reliever for moderate to severe pain

Also sold as: Percocet, Endocet

Round White Pill IP 203

Size: 11 mm capsule

What it is: Oxycodone 5 mg / Acetaminophen 325 mg

What it’s for: Prescription-only opioid/narcotic pain reliever for moderate to severe pain

Also sold as: Percocet, Endocet, Roxicet

Round White Pill K 18

Size: 6 mm

What it is: Oxycodone hydrochloride 5 mg

What it’s for: A prescription-only opioid/narcotic pain reliever for moderate to severe pain

Also sold as: Roxicodone, Endocodone, Percolone, Oxaydo

Round White Pill 4810 V

What Is Your Round White Pill? 21 Possibilities (7)

Oxycodone hydrochloride. Source: Pillbox.

Size: 6 mm

What it is: Oxycodone hydrochloride 5 mg

What it’s for: A prescription-only opioid/narcotic pain reliever for moderate to severe pain

Also sold as: Roxicodone, Endocodone, Percolone, Oxaydo

Round White Pill OP 10

What Is Your Round White Pill? 21 Possibilities (8)

OxyContin 10 mg oxycodone. Source: Pillbox.

Size: 7 mm

What it is: 10 mg extended-release oxycodone hydrochloride; this imprint in particular is OxyContin

What it’s for: Prescription-only opioid/narcotic pain reliever for moderate to severe pain

Also sold as: Authorized generic Oxycodone ER.

Round White Pill 44 159

Size: 13 mm

What it is: Acetaminophen 250 MG / Aspirin 250 MG / Caffeine 65 MG

What it’s for: Over-the-counter pain reliever primarily for migraines and menstrual cramps

Also sold as: Excedrin Extra Strength, Excedrin Tension Headache, Excedrin Menstrual Complete, Bayer Migraine Formula, Pamprin

Round White Pill PLIVA 433

What Is Your Round White Pill? 21 Possibilities (9)

Trazodone hydrochloride. Source: Pillbox.

Size: 9 mm

What it is: Trazodone hydrochloride 50 mg

What it’s for: A prescription-only serotonin modulator and stimulator (SMS) antidepressant; also prescribed for insomnia

Also sold as: Desyrel

Round White Pill M 4

What Is Your Round White Pill? 21 Possibilities (10)

Hydromorphone hydrochloride. Source: Pillbox.

Size: 7 mm

What it is: Hydromorphone hydrochloride 4 mg

What it’s for: Prescription-only opioid/narcotic painkiller

Also sold as: Dilaudid

Round White Pill APO TI-4

What Is Your Round White Pill? 21 Possibilities (11)

Tizanidine hydrochloride. Source: Pillbox.

Size: 8 mm.

What it is: Tizanidine hydrochloride 4 mg

What it’s for: Prescription-only muscle relaxant; also prescribed for migraines, as a sleep aid, and as an anticonvulsant

Also sold as: Zanaflex, Sirdalud

Round White Pill G 2011

What Is Your Round White Pill? 21 Possibilities (12)

Orphenadrine Citrate. Source: Pillbox.

Size: 9 mm

What it is: Orphenadrine citrate 100 mg

What it’s for: Extended-release prescription-only muscle relaxant used to treat muscle spasms and pain

Also sold as: Norflex Extended-Release

Round White Pill GPI A325

What Is Your Round White Pill? 21 Possibilities (13)

Acetaminophen. Source: Pillbox.

Size: 10 mm

What it is: Acetaminophen 325 mg

What it’s for: Over-the-counter painkiller

Also sold as: Tylenol

Round White Pill 10 M

Size: 7 mm

What it is: Methylphenidate hydrochloride 10 mg

What it’s for: A prescription-only stimulant used to treat ADHD and sometimes narcolepsy

Also sold as: Ritalin

Round White Pill Watson 241 1

What Is Your Round White Pill? 21 Possibilities (14)

Lorazepam. Source: Pillbox.

Size: 7 mm

What it is: Lorazepam 1 mg

What it’s for: Prescription-only anti-anxiety medication of the benzodiazepine class.

Also sold as: Ativan, Temesta

Round White Pill M 15

What Is Your Round White Pill? 21 Possibilities (15)

Diphenoxylate hydrochloride and atropine sulfate. Source: Pillbox.

Size: 6 mm

What it is: Diphenoxylate hydrochloride 2.5 mg / Atropine sulfate 0.025 mg

What it’s for: Prescription-only opioid used to treat diarrhea; atropine is included to discourage misuse

Also sold as: Lomotil

Round White Pill G 4

What Is Your Round White Pill? 21 Possibilities (16)

Ondansetron. Source: Pillbox.

Size: 7 mm

What it is: Ondansetron 4 mg

What it’s for: Prescription-only nausea/vomiting treatment, primarily prescribed for chemotherapy or post-surgery

Also sold as: Zofran

Round White Pill W 921

What Is Your Round White Pill? 21 Possibilities (17)

Cefuroxime axetil. Source: Pillbox.

Size: 11 mm

What it is: Cefuroxime axetil 250 mg

What it’s for: Prescription-only antibiotic used to treat a variety of bacterial infections.

Also sold as: Ceftin

Round White Pill W 929

What Is Your Round White Pill? 21 Possibilities (18)

Lisinopril. Source: Pillbox.

Size: 8 mm

What it is: Lisinopril 10 mg

What it’s for: Prescription-only ACE inhibitor used to treat high blood pressure.

Also sold as: Zestril, Prinivil

Identifying Your Round White Pill: The Bottom Line

Is your unidentified white pill round? In this article, we went over how to identify a white round pill with an imprint or pill code.

First it’s important to note that if you can’t identify what your small round white pill is definitively, you shouldn’t take it. You also shouldn’t take a circle white pill if it’s prescription-only and something that wasn’t prescribed to you.

Here’s our three-step process to identifying your little round white pill:

#1: Check the imprint/code (the combination of letters and numbers found on one or both sides of the pill).
#2: Measure the pill’s size in mm.
#3: Check the rest of the article for common pill codes and imprints, or look on Pillbox if it’s not listed. Note that multiple medicines may share the same pill code and even the same size. If you can’t definitively identify your pill, don’t take it.

What's Next?

Want more in-depth info about other pills? We can tell you about M366 pills and and white 377 pills.

Wondering whether supplements work? We can give you the scoop on booty pop, cebria, and virectin—do they work? Are they safe?

Curious about designer drugs? We can tell you all about 4-ho-met and 4-fa.

What Is Your Round White Pill? 21 Possibilities (2024)

FAQs

What is a white pill with the number 21 on it? ›

Pill with imprint A 21 is White, Capsule/Oblong and has been identified as Acetaminophen and Oxycodone Hydrochloride 325 mg / 10 mg. It is supplied by KVK-Tech, Inc. Acetaminophen/oxycodone is used in the treatment of Chronic Pain; Pain and belongs to the drug class narcotic analgesic combinations.

What is a round white pill with v21 on it? ›

Pill with imprint V 21 is White, Round and has been identified as Amlodipine Besylate 5 mg. It is supplied by Biomes Pharmaceuticals LLC. Amlodipine is used in the treatment of High Blood Pressure; Angina; Coronary Artery Disease and belongs to the drug class calcium channel blockers.

What is a round pill with I 21 on it? ›

Pill with imprint I 21 is Yellow, Round and has been identified as Donepezil Hydrochloride 10 mg. It is supplied by Camber Pharmaceuticals, Inc. Donepezil is used in the treatment of Alzheimer's Disease and belongs to the drug class cholinesterase inhibitors. Risk cannot be ruled out during pregnancy.

What is a round white pill with D 21 on it? ›

Pill with imprint D 21 is White, Round and has been identified as Atenolol 25 mg. It is supplied by Aurobindo Pharma. Atenolol is used in the treatment of Angina; Angina Pectoris Prophylaxis; Heart Attack; High Blood Pressure and belongs to the drug class cardioselective beta blockers.

What is a white round pill with e21 on it? ›

Pill with imprint E 21 is White, Round and has been identified as Methadone Hydrochloride 5 mg.

What is a small round white pill with C 21 on it? ›

Pill with imprint C21 is White, Round and has been identified as Baclofen 10 mg. It is supplied by Amneal Pharmaceuticals LLC. Baclofen is used in the treatment of Chronic Spasticity; Cerebral Spasticity; Muscle Spasm; Spasticity; Spinal Spasticity and belongs to the drug class skeletal muscle relaxants.

Is oxycodone the same as percocet? ›

What's the difference between Percocet and oxycodone-CR products? Both Percocet and oxycodone-CR products relieve pain, but while Percocet gives relief for about five hours, the effects of oxycodone-CR last for about 12 hours, when taken as prescribed.

What is a round white pill like Xanax? ›

Pill with imprint 027 R is White, Round and has been identified as Alprazolam 0.25 mg. It is supplied by Actavis. Alprazolam is used in the treatment of Anxiety; Panic Disorder and belongs to the drug class benzodiazepines. There is positive evidence of human fetal risk during pregnancy.

What is a round white pill with 021 on it? ›

Pill with imprint 021 is White, Round and has been identified as Cyclobenzaprine Hydrochloride 7.5 mg. It is supplied by TruPharma LLC. Cyclobenzaprine is used in the treatment of Sciatica; Back Pain; Muscle Spasm; Pain and belongs to the drug class skeletal muscle relaxants.

Is tramadol a round white pill? ›

Tramadol Hydrochloride Tablets USP, 50 mg are supplied as unscored, white, round film-coated tablets debossed “AN” over “627” on one side and plain on the other side. Tramadol hydrochloride is contraindicated for: all children younger than 12 years of age [see Warnings and Precautions (5.4)].

What is the use of T Pill 21? ›

T-Pill 21 Tablet is a medicine used for contraception (to prevent pregnancy) and in the treatment of irregular periods. It helps to prevent the release of the egg and its fertilization by the sperm.

What is CE 21 Pill? ›

Folic acid tablets, USP, 1 mg are Light Yellow, round, biconvex tablets debossed "CE" on the top of the functional score and "21" on the bottom on one side and plain on other side.

What is Pill F 21? ›

Pill with imprint F 21 is White, Oval and has been identified as Alendronate Sodium 70 mg. It is supplied by Aurobindo Pharma. Alendronate is used in the treatment of Prevention of Osteoporosis; Osteoporosis; Paget's Disease and belongs to the drug class bisphosphonates.

What is a S21 pill? ›

Penicillin - VK Tablets (Penicillin V Potassium Tablets USP), 500 mg (800,000 units) are oval, biconvex white tablets, engraved S21.

What does Klonopin look like? ›

Brand Name Klonopin Pill Colors and Shapes

Klonopin is exclusively manufactured by Roche Laboratories, which uses blue, orange, and white colors to indicate the medication's strength. Roche also marks the tablets with a distinctive K-shaped cutout, the dosage, and the company's name.

What is a white oval pill with P 21 on it? ›

Losartan potassium tablets, 25 mg, are white, capsule shaped, biconvex, film-coated tablets, debossed with 'LU' on one side and 'P21' on the other side.

What are white pills with r20 on them? ›

Sildenafil tablets: Sildenafil tablets is white round, biconvex film coated tablets, debossed with R on one side and 20 on the other, containing sildenafil citrate equivalent to 20 mg of sildenafil.

What does tramadol acetaminophen look like? ›

Tramadol hydrochloride and acetaminophen tablets, 37.5 mg/325 mg, (orange, film-coated capsule-shaped tablets) debossed "083" on one side and "KALI" on the other are available as ... Dispense in a tight container.

What is a round white pill with P20 on it? ›

PredniSONE Tablets USP - 20 mg, White to off white color, circular, biconvex tablets debossed with "P20" on one side and break line on other side free from physical defects.

What is a circle pill with C on it? ›

Vasorex 5 mg tablets are white to off white, round with “C” debossed on one side and “127” on the other side. Alternatively, they are debossed on one side with “3236” and “WPI” on the other side. Each tablet contains amlodipine besilate equivalent to 5 mg amlodipine.

What does Acetaminophen look like? ›

This medicine is a white, oblong, tablet imprinted with "L484". This medicine is a white, oblong, tablet imprinted with "L484".

What pill is C over 2 round white? ›

Pill with imprint C 2 is White, Round and has been identified as Clonazepam 2 mg.

What is gabapentin used for? ›

Gabapentin is used to treat epilepsy. It's also taken for nerve pain, which can be caused by different conditions, including diabetes and shingles. Nerve pain can also happen after an injury. In epilepsy, it's thought that gabapentin stops seizures by reducing the abnormal electrical activity in the brain.

Is alprazolam the same as Xanax? ›

Alprazolam (Xanax®) is one of the most commonly prescribed psychiatric medications. While this medication can treat many conditions, it's not without risks. Talk to your healthcare provider about any concerns or questions you have about alprazolam.

What is a white rectangle pill with 21 on it? ›

Pill with imprint Y 2 1 is White, Rectangle and has been identified as Alprazolam 2 mg. It is supplied by Aurobindo Pharma Limited. Alprazolam is used in the treatment of Anxiety; Panic Disorder and belongs to the drug class benzodiazepines.

Top Articles
Latest Posts
Article information

Author: Laurine Ryan

Last Updated:

Views: 6153

Rating: 4.7 / 5 (57 voted)

Reviews: 80% of readers found this page helpful

Author information

Name: Laurine Ryan

Birthday: 1994-12-23

Address: Suite 751 871 Lissette Throughway, West Kittie, NH 41603

Phone: +2366831109631

Job: Sales Producer

Hobby: Creative writing, Motor sports, Do it yourself, Skateboarding, Coffee roasting, Calligraphy, Stand-up comedy

Introduction: My name is Laurine Ryan, I am a adorable, fair, graceful, spotless, gorgeous, homely, cooperative person who loves writing and wants to share my knowledge and understanding with you.