Found a yellow round pill and not sure what it is? Yellow round tablets cover a range of medications from muscle relaxants and mood stabilizers to vitamins and supplements. The only reliable way to identify a specific pill is its imprint code. Below are the most commonly encountered yellow round pills in the United States.
Most Common Yellow Round Pills
Cyclobenzaprine 10 mg
Generic / Flexeril
Muscle relaxant for short-term relief of muscle spasms and pain.
Imprint: TL 177
Clonazepam 0.5 mg
Generic / Klonopin (some manufacturers)
Benzodiazepine for seizure disorders and panic disorder. Schedule IV controlled substance.
Common imprints: TEVA 832, E 64
Thiamine 100 mg
Vitamin B1 (OTC supplement)
Vitamin B1 supplement for nutritional deficiency.
Common imprints: T 100, SL 442
Folic Acid 1 mg
Generic (Rx and OTC)
B-vitamin supplement for pregnancy and red blood cell production.
Common imprints: FA 1, LOGO 1
Quetiapine 25 mg
Generic / Seroquel
Atypical antipsychotic for schizophrenia, bipolar disorder, and depression.
Common imprints: AstraZeneca 25, Q 25, lupin 25
Identify Your Yellow Round Pill
Enter the imprint code from your pill for an exact match — or search by shape and color to browse all options.
Examine both faces of the tablet for an imprint — letters, numbers, or a manufacturer logo pressed into the surface. The color yellow can range from pale lemon to deep gold depending on the manufacturer; entering the shape and imprint in PillID will help refine results across shades.
Some yellow tablets are vitamins and supplements (thiamine, folic acid) that may carry minimal or no imprints, since OTC supplements are not subject to the same FDA imprint requirements as prescription drugs. If a supplement label or packaging is available, that is the most reliable identification method for those products.
If you cannot identify a yellow round pill and are concerned about its contents, call Poison Control at 1-800-222-1222.
Frequently Asked Questions
What is a yellow round pill?
Yellow round tablets include cyclobenzaprine 10mg (muscle relaxer, imprint TL 177), clonazepam 0.5mg from some manufacturers, thiamine 100mg (vitamin B1), folic acid, and quetiapine 25mg (Seroquel). The imprint is the only reliable identifier.
How do I identify a yellow round pill without an imprint?
U.S. prescription tablets must carry a unique imprint by law. A yellow round pill without an imprint is most likely an OTC vitamin or supplement. For emergencies, call Poison Control at 1-800-222-1222.
What is the yellow round pill with "TL 177" on it?
TL 177 is the imprint on cyclobenzaprine hydrochloride 10mg, a muscle relaxant. It is manufactured by Jubilant Cadista Pharmaceuticals and is one of the most frequently searched yellow round pill imprints in the United States.