What Does Tizanidine Look Like? Zanaflex Pill Identifier

Last Updated: October 11, 2021

Authored by Roger Weiss, MD

Reviewed by Michael Espelin APRN

Tizanidine pill is a smooth muscle relaxant indicated for the treatment of muscle spasticity and immobility associated with strains. It is available by prescription and exerts a rapid, short-duration action. If prescribed, one must understand how to identify Zanaflex, and properly use it as dosed.

Learn how Tizanidine pills from different brands look and how to use them safely.

What Are Zanaflex Ingredients?

As suggested previously, Zanaflex is a brand name for Tizanidine, which is a white to off-white, fine crystalline powder. The substance itself is typically odorless, with the only semblance of smell being an occasional faint odor.

Its chemical name is 5-chloro-4-(2-imidazoline-2-ylamino)-2,1,3-benzothiadiazole hydrochloride and its molecular formula is C9H8ClN5S-HCl. Zanaflex is available in capsule and tablet form. The chemical compositions of the two are slightly different.

The former can be found in doses of 2, 4, and 6 mg while the latter is available as 4mg pills for oral use. The capsules contain the active ingredient tizanidine hydrochloride and the inactive ingredients hydroxypropyl methylcellulose, sugar spheres, silicon dioxide, titanium dioxide, gelatin, and colorants.

The active ingredient in the capsule consists of a 2.29 mg (equivalent to 2 mg) Tizanidine base, 4.58 mg (equivalent to 4 mg) tizanidine base, and 6.87 mg (equivalent to 6 mg) Tizanidine base for the 2, 4, and 6mg doses respectively. It has a short half-life of only about 2.5 hours, which means that the body clears the drug within a few hours.

Similarly, the tablets contain the same active ingredient, but this time with a 4.58 mg (equivalent to 4 mg) Zanaflex base, and the inactive ingredients stearic acid, silicon dioxide colloidal, anhydrous lactose, and microcrystalline cellulose.

Zanaflex is classified as a type of central alpha-2-adrenergic agonist. The product is primarily indicated for managing and relieving a clinical symptom known as spasticity. This is why the drug is mainly classified as a muscle relaxant medication. By getting more details on the mechanism of action behind the drug, it is easier to understand what Zanaflex is prescribed for.

What Does Tizanidine Look Like?

The best way to identify Tizanidine pills is by the pill colors, shapes, and the manufacturers’ names or numbers embossed on the tablets. Some Tizanidine tablets are scored and the capsules might be presented in two different colors.

There are many reasons why being able to identify Tizanidine pills is important. It will allow patients to know the dose they are about to take to prevent them from using more than they should. To identify particular pills, follow the Tizanidine pill identifier guide with proper imprint names, brand names, and pictures for each possible variation of this medication.

It is vital to know there is no Zanaflex schedule, according to the information from the Drug Enforcement Agency’s Controlled Substances Act. However, it can only be prescribed by a medical doctor to minimize the risk of Tizanidine side effects, abuse and addiction.

Blue Zanaflex 6 mg Capsule

The Zanaflex 6 mg capsule-shaped, blue pill is identified as Tizanidine 6 mg. The imprint ‘6 MG’ is boldly embossed on the upper half in white ink. It is supplied by Acorda Therapeutics and is available as a prescription-only medication.

Zanaflex 6 mg capsule

White R180 Pill

This pill with the imprint R180 is technically identified as Tizanidine 4 mg. It is manufactured by Par Pharmaceutical Inc. as a white, elliptical tablet. R180 is classified as pregnancy category C and is available only with a prescription.

White R180 pill

White 503 Tablet

503 is a white, round tablet manufactured by Caraco Pharmaceutical Laboratories as 4mg strength. It is identified by a 503 imprint on the front face. The inactive Tizanidine ingredients include lactose anhydrous, lactose monohydrate, silicon dioxide colloidal, microcrystalline cellulose, and stearic acid.

White 503 pill

White A 236 Tablet

This white tablet is identified as Tizanidine Hydrochloride 2 mg. It is manufactured by Actavis Totowa LLC as a prescription-only round pill. It is identified with the ‘A’ imprint in the upper half and ‘236’ on the lower half.

White A 236 tablet

White R179 Pill

This elliptical/oval pill is available as a white tablet with two sides. On one side, ‘RI79’ is imprinted. The other side is a straight line dividing the pill into two halves. It is identified as TH 2 mg and supplied by Par Pharmaceutical Inc.

White R179 pill

White M724 Pill

M724 is a round, white pill manufactured by Mylan Pharmaceuticals Inc. It is about 2mm across its surfaces with ‘M 724’ imprinted on one side. It is identified as Tizanidine 4 mg.

White M724 pill

White APO TI-2 Pill

This pill is manufactured by Apotex Corp and identified as Tizanidine hydrochloride. It is round in shape, white in color, and 6.00 mm in diameter. On the front face, APO is engrossed on the top half and TI-2 on the bottom half.

White APO TI-2 pill

White 502 Tablet

502 is a 2mg strength tablet. This drug is round and white with ‘502’ boldly embossed on the front face. It is supplied by Caraco Pharmaceutical Laboratories.

White 502 tablet

White 93 5160 Tablet

93 5160 is considered a high-strength form of TH, as it contains 4 mg of the drug. It is produced in the United States by Teva Pharmaceuticals. All presentations of this drug are round, white, and available by prescription only.

White 93 5160 tablet

White 93 5163 Tablet

This is considered a low dosage form of ’93 5160’ above. It is identified as Tizanidine hydrochloride and is also manufactured by Teva Pharmaceuticals. It is white, round, with ‘93’ imprinted on the top half of the front face. ’51 60’ completed the imprint on the second half of the face.

White 93 5163 tablet

Yellow R742 Pill

This capsule-shaped pill with R742 on one side contains 2 mg of TH.  It is considered a low dose of the medication and available only on prescription. R742 is yellow, and supplied by Actavis.

Yellow R742 pill

White E 44 Pill

This is a white pill, round and identified as Tizanidine Hydrochloride 4 mg. It is 9.00 mm across its diameter, with an ‘E’ embossed on the upper half of its front face, and ‘44’ on the lower half. It is available only on prescription and supplied by Sandoz Pharmaceuticals Inc.

White E 44 pill

White Cor 106 Pill

This white pill with imprint ‘Cor’ on the upper half of one side and ‘106’ on the lower half is identified as Tizanidine 2mg. It is manufactured by Akyma Pharmaceuticals and is only available as prescription-only medicine.

White Cor 106 pill

White M 722 Pill

M 722 is manufactured by Mylan Pharmaceuticals Inc. It is a white, round pill, available by prescription only and identified as 2 mg TH. It measures 8.00mm across its edges with a bold ‘M’ imprint on the upper half of its face and ‘722’ on the lower half.

White M 722 pill

White Cor 138 Pill

The pill with imprint ‘cor’ on the upper half of its face and ‘138’ on the lower half is white and round in shape. The prescription-only pill is identified as 4 mg of Tizanidine. It is 9.00 mm in diameter and is supplied by Corepharma LLC.

White Cor 138 pill

White U 169 Pill

U I69 is a white pill, round in shape and identified as Tizanidine Hydrochloride 4 mg. It is manufactured by Unichem Pharmaceuticals Inc. and can be identified with the ‘U’ imprint on the top half of its face, and the’169’ on the lower half. It is also available as a prescription-only.

White U 169 pill

White U 168 Pill

This Tizanidine 2 mg pill is white, round, and manufactured by Unichem Pharmaceuticals Inc. The imprint ‘U’ is boldly embossed on the top half of the front face with another ‘168’ imprint on the lower half.

White U 168 pill

White RDY 179 Pill

The elliptical pill with an ‘RDY 179’ imprint is identified as Tizanidine Hydrochloride 2mg. It is supplied by Bryant Ranch Prepack and is available as a white pill. It is available only as a prescription-only and classified as pregnancy category C.

White RDY 179 pill

Blue APO T2 Capsule

APO T2 is a capsule-shaped, blue pill containing Tizanidine hydrochloride as the active ingredient. It is supplied by Apotex Inc and is only available on prescription. This pill has the imprint ‘APO’ on one half of the capsule and ‘T2’ on the other half.

Blue APO T2 capsule

Blue APO T6 Capsule

APO T6 is a blue, capsule-shaped pill containing a high-dose active ingredient – Tizanidine 6 mg. It is supplied by Apotex Inc. and embossed with ‘APO’ on one half and ‘T6’ on the other half.

Blue APO T6 capsule

Orange MYLAN TE 2 Capsule

This orange pill with the imprint ‘MYLAN TE 2’ on the sides of both halves contains Tizanidine 2mg. It is manufactured by Mylan Pharmaceuticals as a capsule-shaped pill available only by prescription.

Orange MYLAN TE 2 capsule

Orange and White MYLAN TE 4 Capsule

This orange/white capsule is manufactured by Mylan Pharmaceuticals and contains Tizanidine Hydrochloride. It is manufactured as a capsule with a size of 16.00mm. In addition, there is the imprint ‘MYLAN TE 4’ on both halves of the capsule-shaped pill.

Orange and white MYLAN TE 4 capsule

Orange and Peach MYLAN TE 6 Capsule

The orange/peach capsule with the imprint ‘MYLAN TE 6’ on the sides of both halves contains Tizanidine 6 mg. It is manufactured by Mylan Pharmaceuticals as a capsule-shaped pill available only by prescription.

Orange and peach MYLAN TE 6 capsule

Blue 1111 Capsule

1111 is a pregnancy category C blue capsule manufactured by Cadila Healthcare Limited. It is capsule-shaped and identified as Tizanidine 2 mg. It is available by prescription only, measures 12.00 mm in size, and has a stylish ‘1111’ imprint on the upper half of its face.

Blue 1111 capsule

Blue and White 1112 Capsule

This pill, identified as Tizanidine 4 mg capsule, is Blue/White, capsule-shaped, and manufactured by Cadila Healthcare Limited. Along its length, it measures 16.00mm and is classified as a pregnancy category C. Consult the doctor before discontinuing this drug for another.

Blue and white 1112 capsule

Blue 1113 Capsule

This Tizanidine 6 mg pill is blue, capsule-shaped, and supplied by Cadila Health Limited. It measures 16 mm in size and is available only by prescription. The imprint ‘1113’ is embossed on the top half and it is classified as a pregnancy category C.

Blue 1113 capsule

Blue and White C 670 Capsule

C 670 is manufactured by Cadista Pharmaceuticals as a blue and white capsule-shaped pill with a ‘C’ imprint on the top half and ‘670’ on the other half. It measures 14.00 mm across its lengths and contains the active ingredient Tizanidine Hydrochloride 2mg.

Blue and white C 670 capsule

Blue C 671 Capsule

This blue pill with the imprint ‘C’ on one half of the face and ‘671’ on the other contains Tizanidine Hydrochloride 4mg. It is manufactured by Cadista Pharmaceuticals Inc. and is available only by prescription.

Blue C 671 capsule

Blue and White C 672 Capsule

C 672 is a blue/white, capsule-shaped pill containing a high dose active ingredient –Tizanidine Hydrochloride 6 mg. It is supplied by Jubilant Cadista Inc. and embossed with ‘C’ on one half and ‘672’ on the other half.

Blue and white C 672 capsule

Blue 2 Mg PAR Capsule

This capsule-shaped pill with ‘PAR’ on one half and ‘2mg’ on the other. It contains 2 mg of Tizanidine.  It is considered a low dose of the medication and available only on prescription. 2 mg PAR is yellow, and supplied by Par Pharmaceutical, Inc.

Blue 2 mg PAR capsule

Blue and White 4 Mg PAR Capsule

This blue/white pill with the imprint ‘PAR’ on one half of the face and ‘4mg’ on the other contains Tizanidine 4 mg. It is manufactured by Par Pharmaceuticals, Inc. and available only by prescription. It is capsule-shaped and measures 3.00 mm along its length.

Blue and white 4 mg PAR capsule

Pink PAR 6 Mg Capsule

PAR 6 mg is identified as Tizanidine 6 mg. It is manufactured by Par Pharmaceuticals, Inc as a Pink, capsule-shaped pill available only by prescription. It has a ‘PAR’ imprint on one of the halves and 6 mg on the other.

Pink PAR 6 mg capsule

Blue A 202 Capsule

A 202 is a blue, capsule-shaped pill Tizanidine 2 mg supplied by Alembic Pharmaceutical Inc. It is available as a prescription-only and classified as a pregnancy category C drug. This pill has an ‘A’ imprint on the upper half of the pill and ‘202’ on the other halves.

Blue A 202 capsule

Blue and White A 203 Capsule

This capsule-shaped blue and white pill is manufactured by Alembic Pharmaceuticals Inc. to contain the active ingredient Tizanidine hydrochloride 4 mg. It is identified with the ‘A’ imprint on the upper blur half and the ‘203.’ It is available as a prescription-only medication.

Blue and white A 203 capsule

Blue A 204 Capsule

A 204 is a blue, capsule-shaped pill containing a high-dose active ingredient –Tizanidine hydrochloride 6 mg. It is supplied by Alembic Pharmaceuticals Inc. and embossed with ‘A’ on one half and ‘204’ on the other half.

Blue A 204 capsule

White TN 2 Pill

This white, round pill, is identified as Tizanidine Hydrochloride 2 mg. It is manufactured by Ascend Pharmaceuticals LLC. and can be identified by the ‘TN’ imprint on the top half of its face, and the ‘2’ imprint on the lover half. It is also available as a prescription-only pill.

White TN 2 pill

White TN 4 Pill

This white, round pill with the imprint ‘TN 4’ on the front face is identified as Tizanidine Hydrochloride 4 mg. It is supplied by Ascbed Laboratories LLC and available for use as a prescription-only medication.

White TN 4 pill

Blue 2MG Tiza Capsule

This capsule-shaped pill is technically classified as Tizanidine Hydrochloride and is available in a 2 mg strength. It is manufactured by Ascend Laboratories LLC and presented with the imprint ‘2mg’ on the upper half and ‘Tiza’ on the lower half.

Blue 2 mg tiza capsule

Blue and White 4MG Tiza Capsule

Manufactured by Ascend Laboratories LLC, this capsule-shaped, blue and white pill is identified as TH 2 mg. On the upper blue half, there is the imprint ‘4mg’ with another imprint ‘Tiza’ on the lower white half.

blue and white 4 mg tiza capsule

Blue 6MG Tiza Capsule

6mg Tiza is manufactured by Ascend Laboratories LLC as a blue, capsule-shaped pill available only on prescription. It has a ‘6mg’ imprint on the top half and a ‘Tiza’ imprint on the lower half. Consult your doctor before switching this drug for another.

blue 6 mg tiza capsule

White APO TI-4 Pill

APO TI-4 is identified as Tizanidine Hydrochloride 4mg. It is manufactured by Apotex Corp as around 8.00mm wide tablet. It is identified by the ‘APO’ imprint on the upper half of the front face and the ‘TI-4’ imprint on the lower half. It is not a controlled drug and can only be dispensed with a prescription.

White APO TI 4 pill

White A 594 Pill

The white round pill with the imprint ‘A’ on the upper half of its front face and another ‘594’ on the lower half is identified as Zanaflex (TH) 4 mg. It is supplied by Acorda Therapeutics Inc and classified as pregnancy category C medication.

White A 594 pill

White A 592 Pill

This tablet, better known as A 592, is identified as Zanaflex 2mg. It is manufactured by PD-RX and designed as a white, round tablet with the imprint ‘A’ on the upper half of the front face and ‘592’ on the lower half. It is also a prescription-only medication.

White A 592 pill

Other Tizanidine Pills

Tables below highlight other Tizanidine pills details:

White Round A234 Pill

A234  Details
Drug Tizanidine Hydrochloride
Strength 4 mg
Imprint A234
Color White
Shape Round
Manufacturer Actavis

Yellow Round R741 Tablet

R741 Details
Drug Tizanidine Hydrochloride
Strength 4 mg
Imprint R741
Color Yellow
Shape Round
Manufacturer Actavis

White RDY 180 Tablet

RDY 180 Details
Drug Tizanidine Hydrochloride
Strength 4 mg
Imprint RDY 180
Color White
Shape Elliptical / Oval
Manufacturer Bryant Ranch Prepack

White TI 2 G Tablet

TI 2 G  Details
Drug Tizanidine Hydrochloride
Strength 2 mg
Imprint TI 2 G
Color White
Shape Round
Manufacturer Alphapharm Pty. Ltd

White TI 4 Tablet

TI 4  Details
Drug Tizanidine Hydrochloride
Strength 4 mg
Imprint TI 4
Color White
Shape Round
Manufacturer Alphapharm Pty. Ltd

White Cor 724 Tablet

cor 724  Details
Drug Tizanidine Hydrochloride
Strength 4 mg
Imprint cor 724
Color White
Shape Round
Manufacturer Keltman Pharmaceuticals Inc.

White B131 Tablet

b131 Details
Drug Tizanidine Hydrochloride
Strength 2 mg
Imprint b131
Color White
Shape Round
Manufacturer Barr Laboratories Inc.

White B132 Tablet

b132 Details
Drug Tizanidine Hydrochloride
Strength 4 mg
Imprint b132
Color White
Shape Round
Manufacturer Barr Laboratories Inc.

White 1104 Tablet

1 1 04  Details
Drug Tizanidine Hydrochloride
Strength 2 mg
Imprint 1 1 04
Color White
Shape Round
Manufacturer Zydus Pharmaceuticals (USA) Inc.

White 773 Tablet

773  Details
Drug Tizanidine Hydrochloride
Strength 4 mg
Imprint 773
Color White
Shape Round
Manufacturer Par Pharmaceutical, Inc.

White 1105 Tablet

1105  Details
Drug Tizanidine Hydrochloride
Strength 4 mg
Imprint 1105
Color White
Shape Round
Manufacturer Zydus Pharmaceuticals (USA) Inc.

Blue 2 MG Capsule

2 mg  Details
Drug Zanaflex
Strength 2 mg
Imprint 2 MG
Color Blue
Shape Capsule-shape
Manufacturer Acorda Therapeutics Inc.

Blue ING 224 Capsule

ING 224  Details
Drug Tizanidine Hydrochloride
Strength 2 mg
Imprint ING 224
Color Blue
Shape Capsule-shape
Manufacturer Ingenus Pharmaceuticals, LLC.

Blue and White ING 225 Capsule

ING 225  Details
Drug Tizanidine Hydrochloride
Strength 4 mg
Imprint ING 225
Color Blue & White
Shape Capsule-shape
Manufacturer Ingenus Pharmaceuticals, LLC

Blue ING 226 Capsule

ING 226  Details
Drug Tizanidine hydrochloride
Strength 6 mg
Imprint ING 226 ING 226
Color Blue
Shape Capsule-shape
Manufacturer Ingenus Pharmaceuticals, LLC

Blue and White 4 MG Capsule

4 MG Details
Drug Zanaflex
Strength 4 mg
Imprint 4 MG
Color Blue & White
Shape Capsule-shape
Manufacturer Acorda Therapeutics Inc.

Blue 6 MG Capsule

6 MG Details
Drug Zanaflex
Strength 6 mg
Imprint 6 MG
Color Blue
Shape Capsule-shape
Manufacturer Acorda Therapeutics Inc.

Green TIAH 2 Capsule

TIAH 2 Details
Drug Tizanidine Hydrochloride
Strength 2 mg
Imprint TIAH 2
Color Green
Shape Capsule-shape
Manufacturer Aurobindo Pharma Limited

Green and White TIAH 4 Capsule

TIAH 4 Details
Drug Tizanidine Hydrochloride
Strength 4 mg
Imprint TIAH 4
Color Green & White
Shape Capsule-shape
Manufacturer Aurobindo Pharma Limited

Blue and Green TIAH 6 Capsule

TIAH 6 Details
Drug Tizanidine Hydrochloride
Strength 6 mg
Imprint TIAH 6
Color Blue & Green
Shape Capsule-shape
Manufacturer Aurobindo Pharma Limited

Blue Logo ^ 043 Capsule

Logo ^ 043 Details
Drug Tizanidine Hydrochloride
Strength 2 mg
Imprint Logo ^ 043
Color Blue
Shape Capsule-shape
Manufacturer Advagen Pharma Limited

Blue and White Logo ^ 044 Capsule

Logo ^ 044 Details
Drug Tizanidine Hydrochloride
Strength 4 mg
Imprint Logo ^ 044
Color Blue & White
Shape Capsule-shape
Manufacturer Advagen Pharma Limited

Blue Logo ^ 045 Capsule

Logo ^ 045 Details
Drug Tizanidine Hydrochloride
Strength 6 mg
Imprint Logo ^ 045
Color Blue
Shape Capsule-shape
Manufacturer Advagen Pharma Limited

Taking Zanaflex Safely

Misuse of Tizanidine can cause drug dependence and adverse reactions. Abrupt quitting of the drug can trigger symptoms of rebound.

Zanaflex drug interactions can occur in people that use the drug with many other drugs, or singly for an extended period. If any of these reactions develop while using this medication, do not hesitate to seek professional help.

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Page Sources

  1. American Society of Health-System Pharmacists. Tizanidine. https://medlineplus.gov/druginfo/meds/a601121.html
  2. Malanga G, Reiter RD, Garay E. Update on tizanidine for muscle spasticity and emerging indications. https://pubmed.ncbi.nlm.nih.gov/18671474/
  3. National Center for Biotechnology Information. Tizanidine. https://pubchem.ncbi.nlm.nih.gov/compound/Tizanidine
  4. U.S National Library of Medicine. Tizanidine Tablet. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=a3fa9c69-4baf-44f5-bac4-a19c34b0e1cb
  5. Shirin Ghanavatian and Armen Derian. Tizanidine. https://www.ncbi.nlm.nih.gov/books/NBK519505/

Published on: October 10th, 2021

Updated on: October 11th, 2021

About Author

Roger Weiss, MD

Dr. Roger Weiss is a practicing mental health specialist at the hospital. Dr. Weiss combines his clinical practice and medical writing career since 2009. Apart from these activities, Dr. Weiss also delivers lectures for youth, former addicts, and everyone interested in topics such as substance abuse and treatment.

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.