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What Does Naproxen Look Like? Naproxen Pill Identifier

Last Updated: June 7, 2022

Authored by Isaak Stotts, LP

Reviewed by Michael Espelin APRN

Patients may encounter either white, green, or blue Naproxen pills. Different brands and pharmaceutical suppliers are manufacturing medicine with varying strength, shape, and imprints like G32. This confuses people who are in search of prescribed Naprosyn 500 pills or Naproxen generic. This article addresses Naproxen dosage, brand names and also intends to work as a Naproxen pill identifier.

What Does Naproxen Look Like?

Aleve pills come in different sizes, shapes, and colors and are manufactured by various brands. To identify particular pills, follow the Aleve pills identifier guide below with proper imprint names, brand name, and pictures for each possible variation of the medicine

Naproxen 500

Naproxen 500 pill.
Imprint: NAPROXEN 500

Strength: 500 mg

Color: Green

Shape: Capsule-shape

Manufacturer: Hamilton

The pill comes in light green colored capsules, uncoated tablets with “NAPROXEN” on one side and “500” imprint on the other side. The manufacturer of this drug is Hamilton.

It contains 500 mg of the active ingredient and 144 mg of lactose monohydrate. This dosage is used to treat rheumatoid arthritis, ankylosing spondylitis, acute musculoskeletal disorders, osteoarthritis, dysmenorrhoea in adults, and juvenile rheumatoid arthritis.

IG 342 Pill

Naproxen IG 342 pill.

Imprint: IG 342

Strength: 500 mg

Color: Yellow

Shape: Capsule-shape

Manufacturer: Exelan Pharmaceuticals

It is a yellow-colored capsule-shape pill. Its main ingredient is 500 mg of Naprosyn. It has “IG” imprinted on one side and “342” on the second side. The pill is supplied by Exelan Pharmaceuticals Inc. it can be prescribed for muscle pain, dental pain, menstrual cramps. It can help in arthritis-related joint stiffness. It has croscarmellose sodium, povidone, ferric oxide yellow, ferric oxide red, silicon dioxide, and magnesium stearate as inactive ingredients.

Blue pill L490

Blue pill L490.

Imprint: L490

Strength: 220 mg

Color: Blue

Shape: Round

Manufacturer: Perrigo Company

It has “L490” imprinted on one side while the other side is blank. It is a blue-colored round pill, which is identified as Naproxen sodium 220 mg. It is supplied by Perrigo Company. It can pose a risk that cannot be ruled out during pregnancy. It is not a controlled substance under the controlled substance at (CSA).

TEVA 149

Teva 149 pill.

Imprint: TEVA 149

Strength: 500 mg

Color: Red

Shape: Elliptical/ Oval

Manufacturer: Teva Pharmaceuticals USA

It is a red-colored pill. It has an elliptical/ oval shape and is identified as 500 mg of the drug. It has “TEVA” written on one side and” 149″ on the other side. Its suppliers are Teva Pharmaceuticals USA. It can be prescribed for aseptic necrosis, chronic myofascial pain, costochondritis, diffuse idiopathic skeletal hyperostosis, dysautonomia, fever, gout, headache, herniated disk, juvenile rheumatoid arthritis, and rheumatoid arthritis.

220 Pill

Naproxen 220 pill.

Imprint: 220

Strength: 220 mg

Color: Blue

Shape: Elliptical/ Oval

Manufacturer: Granules India Limited

It is a blue-colored pill. It has been identified as Naproxen sodium 220 mg. It has an elliptical/ oval shape and is supplied by Granules India Limited. Its inactive ingredients are microcrystalline cellulose, corn starch, povidone k30, sodium starch glycolate type A potato, stearic acid, hypromellose, polyethylene glycol 400, titanium dioxide, and FD&C Blue No. 2.


Naproxen IP 188 pill.

Imprint: IP188

Strength: 250 mg

Color: White

Shape: Round

Manufacturer: Akyma Pharmaceuticals

It is a white-colored, round pill. Its active ingredient is Naproxen 250 mg. It is supplied by Akyma Pharmaceuticals and prescribed for osteoarthritis, radiculopathy, frozen shoulder, and headache. It has “IP188” imprinted on one side and “250” imprinted on the other. It is around 10 mm in size.

93 149 Pill

Naproxen 93 149 pill.

Imprint: 93 149

Strength: 500 mg

Color: Pink

Shape: Elliptical/ Oval

Manufacturer: Teva Pharmaceuticals USA

It has the active ingredient 500 mg of Naprosyn. It is a pink-colored pill with an elliptical/ oval shape supplied by Teva Pharmaceuticals USA. it has “93” imprinted on one side and “149” on the other side. Its inactive ingredients are corn starch, croscarmellose sodium, magnesium stearate, povidone k90, ferric oxide red, and ferric oxide yellow.

Naproxen Sodium 550

naproxen sodium 550 pill.
Imprint: NPS 550

Strength: 550 mg

Color: Blue

Size: 19.00 mm

Shape: Capsule-shape

Manufacturer: Cameron Pharmaceuticals, LLC

This blue Naproxen pill with imprint NPS 550 is capsule-shaped and has been identified as a 550 mg oral capsule. The pill is manufactured and supplied by Cameron Pharmaceuticals, LLC. The pill is quickly and completely absorbed from the gastrointestinal tract with a Vivo bioavailability of ninety-five percent.

Naprosyn 375

Naproxen 375 pill.

Imprint: IP 189 375

Strength: 375 mg

Color: White

Shape: Elliptical / Oval

Manufacturer: ATNAHS PHARMA, US

The white pill with an imprint of IP 189 375 is oval or elliptical in shape. This tablet comes with an inscription of “IP 189″ on one side and” 375″ on the other. The drug is manufactured by ATNAHS PHARMA, US.

IP 190 Pill

Naproxen IP 190 pill.
Imprint: IP 190 500

Strength: 500 mg

Color: White

Shape: Elliptical / Oval

Manufacturer: AMNEAL PHARMS NY

White pill with imprints IP 190 500 comes in an oval shape and has a strength of 500 mg. These are biconvex tablets that are manufactured and supplied by Amneal Pharmaceuticals LLC. This pill works by reducing hormones that are responsible for causing inflammation and pain in the body. Using Naproxen 500 orally twice a day can proffer immediate pain relief.

Patients who use Naprosyn 500 mg for back pain are advised to check the FDA-approved patient labeling before use.

G 32 500 Pill

Naproxen G32 pill.
Imprint: G32 500

Strength: 500 mg

Color: Orange

Size: 16.00 mm

Shape: Capsule-shape

Manufacturer: Glenmark Generics Inc

This capsule-shaped pill with imprints G 32 and 500 comes in orange color. This tablet is 500 mg, which means it is used for the immediate release of severe pain. This product should be taken orally every 12 hours. Naprosyn G 32 is manufactured and supplied by Glenmark Generics Inc.

L368 Pill

Naproxen L368 pill.
Imprint: L368

Strength: 220 mg

Color: Blue

Size: 12.00 mm

Shape: Oval

Manufacturer: Goldline Laboratories, Inc

There is another white Naproxen pill, which comes in an oval shape, has been identified by the L368 imprint. The dosage of L368 pill can vary based on the immediate, delayed, or controlled release. Since its strength is 220 mg, it is advised to take twice a day. Such a pill is supplied and manufactured by Goldline Laboratories, Inc.

IP 194 Blue Pill

Naproxen IP 194 blue pill.
Imprint: IP 194

Strength: 550 mg

Color: Blue

Shape: Oval

Manufacturer: Amneal Pharmaceuticals

This blue Naprosyn pill has been identified as Naproxen Sodium 550 mg tablet. The medicine comes in an oval shape with an imprint of IP 194 on one side. It is used to treat severe pain caused by various reasons. And can be taken orally, after every 12 hours, or as per the doctor’s direction. This medicine is manufactured and supplied by Amneal Pharmaceuticals.

Generic Aleve: Naproxen Brand Names

Naproxen is a non-steroidal anti-inflammatory painkiller that is also sold under different brand names and manufacturers. Both generic and branded versions share similar side effects and indications. However, Naprosyn manufacturers, pricing, and names vary.

  • Aleve. Aleve is another branded variant of Naproxen drug, manufactured by Bayer Healthcare. The drug comes in a 220mg dosage strength and is available over the counter
  • Anaprox, Anaprox DS. Anaprox is another name for Naproxen. It is manufactured by the company “Atnahs Pharma” in the United States. Each pill contains 550 mg of the drug inside.
  • Naprelan. This brand is manufactured by Elan Pharma. The drug is available in three dosage strengths: 375mg, 500mg, and 750mg.
  • Naprosyn, Naprosyn EC. Naprosyn is a branded version of the drug.

First approved by the United States Food and Drug Administration in 1982, Naprosyn is also manufactured by Atnahs Pharma. The regular Naprosyn comes with a dosage strength of 250mg, 375mg, and 500mg, while Naprosyn EC (delayed-release) comes with a dosing strength of 375mg.

Developing proper knowledge of different brands, generic names, and brand names will help avoid many potential risks including avoiding dangerous interactions.

Drugs also typically have different brand names in different countries. It is helpful to have this information to ensure that one can get the right prescriptions even when moving to or visiting another country.

Aleve Dosage Forms And Strengths

Aleve pills are used as a cure for pain, fever, and inflammation. When it comes to appropriate dosing, Aleve dosage and formulations vary and hence, need to be carefully understood before starting.

Wide Spread Dosage Of Naproxen Pills:

  • 125mg
  • 220mg Tablet
  • 250mg Tablet
  • 275mg
  • 375 mg Tablet
  • 500mg Tablet
  • 750mg Tablet

The Drug Exists in the Following Syrup Dosages:

  • 5ml syrup
  • 10ml syrup
  • 15ml syrup
  • 20ml syrup

Naproxen Dosage Conversion

A lesser dose of Aleve is the same as a higher dose of Naproxen sodium, as shown in the table:

Naproxen dosage(mg) Equivalent Naproxen Sodium dosage(mg)
200 220
250 275
500 550

OTC And Prescription Aleve pills

Individuals should only use the over the counter (OTC) Naprosyn tablet for the shortest period possible. It should be taken for 3–5 days in case of pain and up to three days for fever. If there is a need for ongoing treatment, one should consult the physician first.

OTC Aleve Has Two Forms:

  • Immediate-release oral tablet
  • Delayed-release oral tablet

The immediate-release oral tablets are available in 250 mg and 500mg strengths, while the delayed-release tablets have 375mg to 500mg

OTC Naproxen Sodium Has Two Forms:

  • Immediate-release oral tablet
  • Delayed-release oral tablet

Naproxen sodium 275 mg to 750 mg are slow releasing tablets, and the dosage of 550 mg and 250mg are immediate-release.

The prescription dosage strengths range from 250 mg up to 750 mg. The dose of Anaprox will be different for every patient. Dosages depend a lot on the type of disease and the time between each dose.

The Drug Comes In Various Forms, Which Are:

  • Pills
  • Syrup
  • Injection
  • Ointment

Although Naprosyn drugs are also supplied in the form of ointments, ointments aren’t as popular as its oral form but are equally effective during dental pain. The drug’s oral consumption is contraindicated in patients with gastroesophageal reflux, peptic ulcer disease, irritable bowel syndrome, or other disorders related to gastrointestinal issues. This can be prevented through the controlled release of the drug to the skin. This way, the effects of oral administered pill formula will be reduced, minimizing percutaneous absorption.

Avoiding False Generic Aleve Pills

It isn’t easy to identify any particular Aleve tablet when there are many pills with the same drugs available. Knowing how different pills and tablets look will prevent one from taking too much Naproxen or mistaking another drug for it. Also, avoid self-medication and consult with health providers to ensure the proper use of the drug, and to find suitable alternatives if necessary.

Despite the fact that Naproxen addictive properties are very low, one still may end up in a loop of addiction. In case of mild or even severe addiction, local rehabilitation centers can help patients overcome dependency. Undergoing an addiction treatment course will allow the individual to safely withdraw from the drug and mitigate the possible adverse reactions.

Page Sources

  1. Eslamian, L., Kianipour, A., & Mortazavi, S. (2017). The Analgesic Efficacy of 5% Naproxen Gel for Pain Associated with Orthodontic Separator Placement: A Randomized Double-Blind Controlled Trial. Anesthesiology and pain medicine, 7(2), https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5559666/
  2. FDA Naprosyn Suspension Drug Sheet https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/018965s022s023lbl.pdf
  3. National Center for Biotechnology Information. PubChem Database. Naproxen, CID=156391, https://pubchem.ncbi.nlm.nih.gov/compound/Naproxen#section=ATC-Code
  4. Brutzkus JC, Varacallo M. Naproxen. [Updated 2019 Oct 9]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. https://www.ncbi.nlm.nih.gov/books/NBK525965/

Published on: March 23rd, 2020

Updated on: June 7th, 2022

About Author

Isaak Stotts, LP

Isaak Stotts is an in-house medical writer in AddictionResource. Isaak learned addiction psychology at Aspen University and got a Master's Degree in Arts in Psychology and Addiction Counseling. After graduation, he became a substance abuse counselor, providing individual, group, and family counseling for those who strive to achieve and maintain sobriety and recovery goals.

Medically Reviewed by

Michael Espelin APRN

8 years of nursing experience in wide variety of behavioral and addition settings that include adult inpatient and outpatient mental health services with substance use disorders, and geriatric long-term care and hospice care.  He has a particular interest in psychopharmacology, nutritional psychiatry, and alternative treatment options involving particular vitamins, dietary supplements, and administering auricular acupuncture.

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