Citra 100mg Guide: Active Ingredient, Uses, Safety, Side Effects

Citra 100mg is a product name associated with tramadol in FDA enforcement records. However, the regulatory status of a specific product sold under the name Citra 100mg should not be confused with the status of FDA-approved tramadol medicines. In a March 4, 2026 warning letter, the U.S. Food and Drug Administration (FDA) identified “Citra 100mg” among products marketed as tramadol that were being offered without an approved drug application on the website reviewed by the agency.

This distinction is important because FDA-approved tramadol is a prescription opioid analgesic with specific labeling, warnings, contraindications, dosing requirements, and quality controls. A product using the same or a similar name does not automatically have the same regulatory status, manufacturing standards, ingredients, strength, or safety profile.

This guide explains what Citra 100mg has been associated with, what tramadol is, how FDA-approved tramadol is used, important safety risks, potential drug interactions, dependence and withdrawal concerns, and how consumers can verify the identity and regulatory status of a medicine.

What Is Citra 100mg?

Citra 100mg is a product name that has been associated with tramadol, an opioid analgesic used for certain types of pain. However, the name itself should not be treated as proof of the medicine’s active ingredient, strength, manufacturer, quality, or FDA approval.

The FDA specifically identified a product marketed as “Citra 100mg” as an unapproved opioid product containing or represented as tramadol in its March 4, 2026 warning letter. FDA explained that there are approved tramadol medicines in the United States, but that the specific Citra 100mg product named in its enforcement action did not have an approved drug application.

Therefore, consumers should distinguish between FDA-approved tramadol and a product marketed under the name Citra 100mg. The two should not automatically be considered interchangeable.

What Is the Active Ingredient in Citra 100mg?

FDA’s March 2026 warning letter identifies Citra 100mg as a name used to market tramadol. Tramadol hydrochloride is an opioid agonist with analgesic activity and additional effects involving serotonin and norepinephrine pathways.

However, a product’s name alone is not sufficient evidence that every tablet sold under that name actually contains the stated ingredient or strength. FDA warns that unapproved products may have different ingredients, varying amounts of active ingredients, or may be contaminated or counterfeit.

If you have a Citra 100mg product in your possession and cannot verify its manufacturer, labeling, packaging, lot information, and regulatory status, do not assume that it contains exactly 100mg of tramadol.

Is Citra 100mg FDA Approved?

The Citra 100mg product identified by FDA in its March 4, 2026 warning letter was not an FDA-approved drug product.

FDA stated that no approved drug applications were in effect for the Citra 100mg product and several other named products offered on the website addressed in the warning letter. FDA also emphasized that approved versions of tramadol are available in the United States.

This means that consumers should not interpret the existence of FDA-approved tramadol products as evidence that a product labeled Citra 100mg is itself FDA-approved.

What Is FDA-Approved Tramadol Used For?

FDA-approved immediate-release tramadol hydrochloride is an opioid agonist indicated in adults for the management of pain severe enough to require an opioid analgesic when alternative treatments are inadequate.

Current U.S. prescribing information emphasizes that opioid analgesics such as tramadol should generally be reserved for patients for whom alternative treatment options are ineffective, not tolerated, or otherwise inadequate. The decision to prescribe tramadol should take into account the patient’s pain, medical history, other medications, and risk factors for opioid-related complications.

These approved indications apply to FDA-approved tramadol products and should not be interpreted as approval of an unapproved product marketed as Citra 100mg.

How Does Tramadol Work?

Tramadol has a complex mechanism of action. It acts as an opioid agonist and also affects the reuptake of norepinephrine and serotonin.

The opioid activity contributes to analgesia but also creates clinically important risks, including respiratory depression, sedation, misuse, addiction, physical dependence, and overdose. The effects involving serotonin and norepinephrine also contribute to specific interaction risks, including the possibility of serotonin syndrome when tramadol is combined with certain serotonergic medicines.

Citra 100mg Dosage Information

A dosage recommendation should not be provided for an unapproved product simply because its label states “100mg.” The actual contents, formulation, manufacturer, and quality of an unapproved product may not be reliably established.

For comparison, FDA-approved immediate-release tramadol labeling provides individualized dosing instructions. The approved labeling states that treatment should be initiated and adjusted according to the patient’s pain severity, response, previous analgesic treatment, and risk factors for addiction, abuse, and misuse.

In certain adults, approved tramadol labeling includes an initial and titration regimen that may involve 50mg to 100mg every 4 to 6 hours as needed, with a maximum of 400mg per day. However, this information is provided only to explain the dosing of FDA-approved tramadol and is not a dosing recommendation for Citra 100mg.

Patients with significant kidney or liver impairment, older adults, and people taking interacting medications may require different treatment considerations. Extended-release tramadol formulations also have different dosing requirements and should not be treated as interchangeable with immediate-release tablets.

Never increase, decrease, split, crush, or combine an opioid medication without specific instructions from a qualified healthcare professional.

Citra 100mg Side Effects

If a product labeled Citra 100mg actually contains tramadol, it may cause side effects associated with tramadol and other opioid medicines. However, the side-effect profile of an unapproved or counterfeit product cannot be reliably predicted because its contents may differ from the stated label.

Common Side Effects Associated With Tramadol

• Dizziness
• Sleepiness or drowsiness
• Nausea
• Constipation
• Vomiting
• Headache
• Dry mouth
• Sweating

Serious Side Effects

• Slow or difficult breathing
• Extreme sleepiness or inability to wake up
• Seizures
• Serotonin syndrome
• Severe allergic reactions
• Low blood pressure or fainting
• Confusion or significant changes in mental status
• Opioid overdose

Severe breathing problems, loss of consciousness, seizures, or suspected overdose require emergency medical attention.

FDA Boxed Warning for Tramadol

The boxed warning applies to FDA-approved tramadol products. The presence of a similar name or strength on an unapproved product does not establish that the product has undergone the same regulatory review or manufacturing controls.

Citra 100mg Drug Interactions

If a product contains tramadol, it can interact with numerous prescription medicines, over-the-counter medicines, and substances. Because the contents of an unapproved product may not be reliable, the interaction risk may be even more difficult to assess.

Opioids and Other Central Nervous System Depressants

Combining tramadol with alcohol, benzodiazepines, sedatives, other opioids, or other central nervous system depressants can increase sedation and respiratory depression. Severe cases may result in coma or death.

Serotonergic Medicines

Tramadol can increase serotonin activity. Combining it with certain antidepressants and other serotonergic medicines can increase the risk of serotonin syndrome.

Symptoms may include agitation, confusion, sweating, fever, rapid heart rate, muscle rigidity, tremor, loss of coordination, or gastrointestinal symptoms. Severe symptoms require urgent medical assessment.

MAO Inhibitors

Tramadol has important interactions with monoamine oxidase inhibitors (MAOIs). Patients should provide their healthcare professional with a complete medication list before treatment.

CYP3A4 and CYP2D6 Medicines

Tramadol metabolism is affected by CYP3A4 and CYP2D6 pathways. Medicines that inhibit or induce these enzymes can change tramadol exposure and the concentration of its active metabolite. Such interactions can affect both efficacy and safety.

Always tell your prescriber and pharmacist about prescription drugs, nonprescription medicines, supplements, and recreational substances you use.

Tramadol, Dependence, Tolerance and Withdrawal

Tramadol is an opioid and can cause addiction, abuse, misuse, physical dependence, and withdrawal. These risks can occur even when the medicine is used according to a prescription.

Physical dependence is different from addiction. A person who has developed physical dependence may experience withdrawal symptoms if treatment is stopped suddenly, even when the medication has been taken exactly as prescribed.

Depending on the duration and amount of opioid exposure, withdrawal can include anxiety, sweating, restlessness, insomnia, muscle aches, abdominal symptoms, nausea, diarrhea, and other symptoms.

Do not abruptly discontinue long-term tramadol therapy without medical guidance. Current prescribing information recommends a gradual reduction when discontinuation is appropriate.

Seizure Risk

Tramadol can increase the risk of seizures. The risk may increase at higher doses and when tramadol is combined with certain medicines that lower the seizure threshold.

People with a history of seizures or conditions that increase seizure risk should discuss this with their healthcare professional before taking a tramadol-containing medicine.

Citra 100mg During Pregnancy and Breastfeeding

Tramadol can present important risks during pregnancy. Current prescribing information warns about fetal harm and neonatal opioid withdrawal syndrome.

Opioid exposure near delivery can result in withdrawal symptoms in a newborn that may require medical treatment.

Tramadol is also associated with risks during breastfeeding. Current labeling advises careful observation of breastfed infants for excessive sleepiness, breathing difficulties, or limpness and recommends seeking immediate medical attention if these symptoms occur.

Anyone who is pregnant, planning pregnancy, or breastfeeding should discuss opioid use with a qualified healthcare professional.

Who Should Avoid or Use Extra Caution With Tramadol?

Tramadol is not appropriate for everyone. Healthcare professionals consider several factors before prescribing it.

• Children younger than 12 years
• Certain adolescents with increased respiratory-depression risk
• People with significant respiratory problems
• People with a history of seizures
• People taking certain serotonergic medicines
• People using MAO inhibitors
• People with severe liver or kidney impairment
• People with a history of substance use or opioid-related complications
• Pregnant or breastfeeding individuals

The exact contraindications and precautions depend on the specific FDA-approved formulation and the patient’s medical circumstances.

Citra 100mg vs FDA-Approved Tramadol

How to Verify an Online Medicine

Consumers should take extra care when purchasing or receiving prescription medicines through online sources. A professional-looking website, product photograph, claimed dosage, or familiar-sounding brand name does not establish that a medicine is genuine or FDA-approved.

Before using an online medicine, consider the following:

• Check whether the medicine has an FDA-approved application or recognized U.S. labeling.
• Confirm the exact manufacturer and product name.
• Check the active ingredient and strength on the official package.
• Look for a valid National Drug Code (NDC) where applicable.
• Check lot numbers and expiration dates.
• Be cautious of products sold without a prescription when U.S. law requires one.
• Avoid products with unclear labeling or inconsistent packaging.
• Ask a pharmacist to verify an unfamiliar medicine before taking it.

Safe Storage and Accidental Exposure

Prescription opioids should be stored securely and kept out of reach of children, visitors, and anyone for whom the medicine was not prescribed.

Accidental ingestion of tramadol can cause serious or fatal overdose, particularly in children. Medicines should therefore be stored according to the product labeling and disposed of through an appropriate medication take-back or disposal method when they are no longer needed.

Naloxone and Opioid Overdose

Naloxone is an opioid overdose reversal medication that can rapidly restore breathing in a person experiencing an opioid overdose. People who take opioid medicines or have risk factors for opioid overdose may benefit from discussing naloxone access with a healthcare professional.

Warning signs of opioid overdose can include extreme sleepiness, inability to wake, slow or shallow breathing, unusual snoring or choking sounds, and loss of consciousness.

If an opioid overdose is suspected, call emergency medical services immediately and administer naloxone if available and appropriate. Continue following emergency instructions even if the person temporarily improves after naloxone.

Frequently Asked Questions About Citra 100mg

1. What is Citra 100mg?

Citra 100mg is a product name that FDA has associated with tramadol in an enforcement action. FDA’s March 4, 2026 warning letter identified a Citra 100mg product as an unapproved opioid product marketed as tramadol. The name should not be treated as proof that a particular product is FDA-approved or contains the stated ingredient.

2. Is Citra 100mg the same as tramadol?

FDA identified Citra 100mg as a name used to market tramadol. However, an unapproved product should not automatically be assumed to be equivalent to an FDA-approved tramadol product because its identity, ingredients, strength, quality, and manufacturing cannot be assumed from the name alone.

3. Is Citra 100mg FDA approved?

The Citra 100mg product identified by FDA in its March 4, 2026 warning letter was described as an unapproved drug product. FDA-approved tramadol products are available separately in the United States.

4. What is tramadol used for?

FDA-approved immediate-release tramadol is indicated for adults with pain severe enough to require an opioid analgesic when alternative treatments are inadequate. It is a prescription opioid and carries significant safety warnings.

5. What are the common side effects of tramadol?

Common side effects can include dizziness, drowsiness, nausea, constipation, vomiting, headache, dry mouth, and sweating. Serious reactions can include respiratory depression, seizures, serotonin syndrome, severe allergic reactions, and overdose.

6. Can tramadol cause dependence?

Yes. Tramadol can cause addiction, abuse, misuse, and physical dependence. Stopping long-term treatment suddenly can cause withdrawal symptoms, so discontinuation should be medically supervised.

7. Can tramadol be taken with alcohol?

Combining tramadol with alcohol can increase central nervous system depression and respiratory-depression risks. The combination can be dangerous and potentially fatal, particularly when other sedating medicines are also involved.

8. What should I do if I am unsure whether my Citra 100mg tablets are genuine?

Do not assume that the tablets are safe based only on their appearance or name. Contact a pharmacist or healthcare professional and provide the packaging, labeling, manufacturer information, lot number, and other identifying details for verification. If you suspect an overdose or serious reaction, seek emergency medical assistance immediately.

Key Takeaways

• Citra 100mg is a product name that FDA has associated with tramadol.
• FDA identified the Citra 100mg product in its March 4, 2026 warning letter as an unapproved drug product.
• FDA-approved tramadol is a prescription opioid indicated for certain adults with pain severe enough to require an opioid when alternative treatments are inadequate.
• Tramadol carries serious risks including addiction, misuse, respiratory depression, overdose, seizures, and withdrawal.
• Tramadol can interact with alcohol, benzodiazepines, other opioids, serotonergic medicines, MAO inhibitors, and medicines affecting CYP3A4 or CYP2D6.
• The dose of an FDA-approved tramadol product should be individualized by a qualified healthcare professional.
• Do not assume that a product labeled Citra 100mg is equivalent to an FDA-approved tramadol medicine.
• If the identity or authenticity of an online medicine is uncertain, consult a pharmacist or healthcare professional before taking it.

Medical Sources

• U.S. Food and Drug Administration (FDA) — Citra100mg Warning Letter, March 4, 2026.
• DailyMed — Current U.S. prescribing information for Tramadol Hydrochloride Tablets.
• FDA-approved tramadol prescribing information and Medication Guide.