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Yellow Xanax Bar (R039 / P039): Overview
A yellow Xanax bar is a 2 mg alprazolam tablet. People often mark it with “R039” or “P039.” People frequently refer to this pill as the ro39 pill yellow, pill r039 yellow, 039 yellow pill, or yellow bar pill. It matches other high-dose Xanax bars in strength but is unique because of its yellow color.
Appearance & Identification
- Color & Shape: Solid yellow, rectangular, divided into four segments
- Imprint: “R039” or sometimes “P039”
- Dosage: Contains 2 mg of alprazolam and is scored for easier division
People commonly call the yellow pill with 039 yellow xan or yellow xans.
Uses & Effects
Clinicians prescribe yellow Xanax bars to treat diagnosed anxiety-related disorders, including generalized anxiety and panic disorder, by directly targeting central nervous system overactivity. As a benzodiazepine, alprazolam provides calming effects and helps reduce overactive brain activity.
Onset & Peak: Effects typically begin within one hour and peak after one to two hours.
Types of Xanax Bars by Color and Strength
Xanax bars are available in multiple colors, shapes, and dosages. While the yellow Xanax bar marked R039 is among the most recognizable, other variants also exist. These include green Xanax bars, white Xanax bars, and blue Xanax bars. Each color typically indicates a different manufacturer, yet all forms contain alprazolam, a benzodiazepine prescribed for anxiety-related conditions.
The types of Xanax bars most commonly encountered in clinical and illicit contexts are:
- White Xanax bars – Typically 2 mg of alprazolam; often generic.
- Green Xanax bars – May contain similar dosage; used interchangeably with yellow bars.
- Blue Xanax bars – Generally oval-shaped and contain 1 mg.
Despite similar chemical composition, color distinctions matter when verifying authenticity. Illegitimate pills often mimic these appearances to disguise counterfeit products.
Common Dosages of Alprazolam and Pill Strengths
Medical providers prescribe alprazolam in varying strengths depending on the patient’s diagnosis and response to treatment. Dosages typically range from 0.25 mg, 0.5 mg, 1 mg, up to 2 mg, which is the standard strength in most yellow Xanax bars.
Doctors often begin patients on small doses, like 0.5 mg. They then slowly increase the dose under clinical supervision.
Healthcare providers must precisely manage the dose of alprazolam to avoid dependency, withdrawal symptoms, and overdose risk. Doctors often use high-dose forms, like 2 mg, for severe anxiety or panic disorder. They also have a higher risk of misuse.
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Common Side Effects
The use of yellow Xanax bars, including variations like r039 yellow bar and yellow pill p039, may result in:
- Drowsiness or fatigue
- Dizziness and lightheadedness
- Dry mouth or nausea
- Blurred vision and slurred speech
- Muscle weakness or lack of coordination
- Mood swings or low libido
More serious effects can include memory problems, confusion, and difficulty breathing.
Dependency & Withdrawal
Pills such as the pill xanax yellow, yellow ro39 bars, and ro39 yellow pill carry a high risk of dependence. Long-term use may lead to:
- Increased tolerance
- Physical and psychological dependence
- Withdrawal symptoms when use is reduced or stopped
Withdrawal symptoms may include anxiety, insomnia, shaking, irritability, and seizures.
Xanax Pills and Bars: Risks of Dependence and Misuse
Many people who misuse xanax pills and bars initially receive them through a legitimate prescription. Over time, some individuals develop tolerance and begin to take more than the prescribed amount. This behavior increases the likelihood of physical and psychological dependence. Individuals addicted to Xanax may experience intense cravings and withdrawal symptoms when they attempt to stop.
As a substance abused, alprazolam often appears in emergency room visits related to overdose. Misuse of high-dose formulations, such as yellow bar pills or xanax r039 yellow bars, is particularly concerning. The combination of alprazolam with other central nervous system depressants, such as opioids or alcohol, significantly increases the risks.
Treatment Programs for Xanax Addiction
People experiencing symptoms of alprazolam dependence may benefit from structured treatment programs. These often include medically supervised detox, followed by cognitive-behavioral therapy and long-term aftercare planning. Experts create programs to fit each person’s needs, especially for polydrug abuse or mental health issues.
Treatment programs vary in intensity and setting, ranging from outpatient counseling to residential rehab centers. A comprehensive program addresses both the physical symptoms of withdrawal and the psychological aspects of addiction.
Abuse Potential
People often misuse yellow Xanax bars because of their potency and quick effects. Counterfeiters may create pills that appear as Xanax R039 yellow, R039 Xanax yellow bar, or yellow Xanax pills. Counterfeit versions often introduce dangerous substances and significantly elevate the risk of overdose.
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Safety & Interaction Concerns
Users should avoid combining yellow alprazolam or any bar pill with other depressants such as:
- Alcohol
- Opioids
- Sleeping aids or muscle relaxants
- Certain antidepressants and antibiotics
Recognizing Counterfeits
Authentic pills like the yellow bar r039 pill have clear imprints and consistent coloring. Counterfeit pills may have blurred or off-center text, an uneven surface, or unusual color. Always be cautious when identifying pills labeled r039 xanax, p039 yellow pill or xanax yellow bar r039.
Dosage – How Many Mg in a Yellow Xanax Bar?
Each yellow Xanax bar contains 2 milligrams of alprazolam. You can divide the pill into halves (1 mg) or quarters (0.5 mg) to allow for smaller doses.
Common terms include:
- 2mg xanax bars yellow,
- xanax bars 2mg yellow
- yellow 2mg xanax bars
- xanax pills yellow
- yellow xanax r039
- yellow xanax 2mg
- 039 pill yellow
- yellow bar ro39
- bars pills yellow
- yello xanax
- r039 yellow long pill
Treatment & Support
You should stop using high-dose bars like the yellow long pill or yellow Xanax with a doctor’s help. Effective treatment often includes:
- Medically supervised tapering
- Detox in a safe clinical environment
- Therapy such as CBT, group support, or individual counseling
- Long-term aftercare and relapse prevention
Professional treatment significantly reduces risks and supports sustainable recovery.
Treating Anxiety and Panic Disorders
Alprazolam is one of the most prescribed medicines in the United States. It is used for anxiety and panic disorder.
Clinicians may use it to treat anxiety and panic in acute settings where rapid relief is necessary. Doctors usually do not prescribe it for long-term use. This is because it has a short half-life and a high risk of abuse.
Doctors may recommend safer, longer-acting medications to treat anxiety disorders over time. People often use these alternatives in conjunction with therapy to manage symptoms without the risks associated with benzodiazepines.
Summary
- Yellow Xanax bars (R039 / P039) contain 2 mg of alprazolam
- Often referred to by names such as yellow bar pill, ro39 pill, and alprazolam yellow
- Risk of misuse, addiction, and counterfeit pills is high
- Use should always be monitored by a healthcare provider
- Professional detox and rehab are recommended for those misusing or dependent on this medication
If you or someone you know is struggling with misuse of yellow Xanax bars, professional help is available. Recovery is possible with the right support and treatment.
