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Understanding What is 556 drug?: A Guide to Pill Identification by Imprint Codes

4 min read

The Food and Drug Administration (FDA) requires nearly all prescription and over-the-counter pills to have a unique imprint code for identification. The seemingly straightforward question, "What is 556 drug?" highlights the crucial fact that a single number like "556" does not identify one specific medication, but rather several distinct drugs distinguished by their shape, color, and other details.

Quick Summary

The imprint '556' does not refer to a single drug but is a code used on several different medications, including Carbamazepine, Olanzapine, Lisinopril, and Raniclor. Correct identification requires considering the pill's color, shape, and size in combination with the imprint.

Key Points

  • Imprint Codes are Not Unique Numbers: A single number, like '556', is not enough to identify a drug; the full imprint, along with shape, color, and size, must be considered.

  • Several Drugs Can Have a '556' Imprint: The number '556' can be associated with different medications, including Carbamazepine, Olanzapine, Raniclor (cefaclor), and Lisinopril.

  • Misidentification is Dangerous: Taking the wrong medication due to misidentification can lead to severe health consequences, including incorrect treatment and dangerous interactions.

  • Reliable Tools are Key for Identification: Use online pill identifier tools from reputable sources like Drugs.com or WebMD, or consult a pharmacist for a safe and accurate identification.

  • FDA Mandates Imprints: The FDA requires most solid oral medications to have an imprint code, ensuring every FDA-approved pill is identifiable through its unique characteristics.

  • Different Manufacturers, Different Codes: Different companies producing the same generic drug may use different imprint codes, explaining why your medication's appearance can change.

  • Pharmacist is Your Best Resource: If you are unsure about a pill, a pharmacist is a trained professional who can help identify it safely.

In This Article

Understanding Pill Imprints: More Than Just a Number

The practice of imprinting solid oral medications is a vital aspect of pharmaceutical safety and regulation. The imprints, which consist of letters, numbers, or a combination of both, serve as unique identifiers to help healthcare providers, patients, and emergency personnel quickly and accurately identify a pill. This system is essential for preventing medication errors, especially during emergencies like an accidental overdose. However, the key to this system is understanding that a number like '556' is only part of the identifier. Different manufacturers may use similar numerical sequences, which is why the full set of physical characteristics—shape, color, and size—must be considered together to get a definitive match. Online resources, such as Drugs.com or WebMD's Pill Identifier, aggregate this data to allow for precise searches by cross-referencing all available features.

The FDA's Role in Imprint Codes

Under federal regulations, the FDA requires most oral drug tablets and capsules to carry an imprint. While the FDA does not evaluate or approve the specific imprint codes themselves, it mandates that drug firms provide this information to the agency's Drug Listing Team for entry into a database. This database, which includes identifiers such as shape, size, color, and imprint code, helps facilitate timely and comprehensive searches for medication identification. The FDA encourages manufacturers to include letters or numbers, in addition to any logos, to ensure better public health outcomes by enabling quicker identification in critical situations.

What is the 556 drug? Common Identifications

When a pill is imprinted with the number '556', it could correspond to one of several different medications, depending on its other attributes. Here are some of the most common identifications associated with the '556' imprint based on reliable pill identifier databases:

  • White, Round, 10mm '556' pill: This pill is identified as Carbamazepine Extended-Release 200 mg, manufactured by Zydus Pharmaceuticals. This medication belongs to the dibenzazepine anticonvulsants drug class and is used to treat conditions such as epilepsy, seizures, trigeminal neuralgia, and bipolar disorder.
  • Yellow, Oval '556' pill: This pill is identified as Olanzapine 20 mg, a medication belonging to the atypical antipsychotics drug class. It is used to treat major depressive disorder, agitation, schizophrenia, and bipolar disorder.
  • Yellow, Round 'RX 556' pill: This pill with the additional 'RX' imprint is identified as Raniclor 187 mg, or cefaclor, a second-generation cephalosporin antibiotic used to treat bacterial infections like bronchitis and pneumonia.
  • White, Oval '556 par' pill: The pill with the imprint '556 par' is Lisinopril 2.5 mg, an ACE inhibitor used for high blood pressure, heart failure, and heart attack.

Comparison of Drugs with the '556' Imprint

Imprint Combination Active Ingredient Condition(s) Treated Appearance Drug Class Manufacturer Controlled Substance?
556 (White, Round) Carbamazepine ER 200 mg Seizures, Bipolar Disorder White, Round Dibenzazepine Anticonvulsant Zydus Pharmaceuticals No
556 (Yellow, Oval) Olanzapine 20 mg Schizophrenia, Bipolar Disorder Yellow, Oval Atypical Antipsychotic Unspecified (varies) No
RX 556 (Yellow, Round) Raniclor 187 mg (cefaclor) Bacterial Infections Yellow, Round Second Generation Cephalosporin Unspecified (varies) No
556 par (White, Oval) Lisinopril 2.5 mg High Blood Pressure, Heart Failure White, Oval ACE Inhibitor Par Pharmaceutical Inc. No

The Dangers of Misidentified Medications

Mistaking one pill for another can lead to serious health consequences, including dangerous drug interactions, accidental overdoses, or a lack of therapeutic effect if the needed medication is not taken. For example, confusing Carbamazepine, which affects nerve impulses, with Olanzapine, which affects brain chemicals, could have devastating effects on a patient's condition. The issue is compounded when medication is not kept in its original, properly labeled container, or if a person attempts to take someone else's prescription. Any pill without a clear and reliable identification should be treated with extreme caution and not consumed. In cases of suspected poisoning or overdose, it is critical to contact emergency services or a poison control center immediately.

How to Properly Identify Your Medication

If you find an unidentifiable pill, here are the steps to take to ensure your safety:

  1. Do not consume the pill. Never take a medication you cannot definitively identify. You have no way of knowing its proper dosage, purpose, or if it has been stored correctly.
  2. Examine the pill thoroughly. Note the imprint code, shape, and color. Check for markings on both sides. Sometimes, what looks like a letter or number might be a manufacturer's logo.
  3. Use a reliable pill identifier tool. Websites like Drugs.com, WebMD, or the FDA's databases offer pill identification tools where you can enter the characteristics you observed to find potential matches. You can use the Drugs.com pill identifier here: Drugs.com Pill Identification Wizard.
  4. Consult a pharmacist. A pharmacist has access to professional drug databases and can provide expert assistance in identifying a medication. They can help you compare the unknown pill to your current prescriptions to confirm if a mix-up has occurred.
  5. Contact your prescribing doctor. If you believe the pill is one of your medications but appears different, contact your doctor. Generic medications can look different depending on the manufacturer.

Conclusion

In summary, the question, "What is 556 drug?" has no single answer because '556' is just one part of a pill's unique imprint code. The combination of the number '556' with specific characteristics like color and shape can point to a number of different medications, including Carbamazepine, Olanzapine, Raniclor (cefaclor), or Lisinopril. Relying solely on the number is dangerous and unreliable. For safe medication management, it is crucial to use reputable identification tools and consult with a healthcare professional to ensure you know exactly what you are taking.

Frequently Asked Questions

The white, round pill with the imprint '556' is identified as Carbamazepine Extended-Release 200 mg, a medication used for treating seizures and bipolar disorder.

The yellow, oval pill with the imprint '556' is Olanzapine 20 mg, an antipsychotic medication used to treat schizophrenia and bipolar disorder.

The difference is determined by the pill's complete physical characteristics, including its shape and color. For example, Carbamazepine is white and round, while Olanzapine is yellow and oval.

No, none of the common medications associated with the '556' imprint (Carbamazepine, Olanzapine, Lisinopril, Raniclor) are classified as controlled substances.

You should not take the pill. Instead, use an online pill identifier tool, consult a pharmacist, or discard it safely.

The FDA requires most prescription and over-the-counter solid oral medications to have an imprint code. Some exceptions exist for medications that are too small or are administered in a controlled clinical setting.

Different manufacturers produce generic versions of drugs, and each manufacturer uses its own specific set of imprint codes. This means the appearance can vary, but the active ingredient and strength remain the same.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.