Description

Subutex (Buprenorphine Hydrochloride) 8 mg

Subutex (buprenorphine hydrochloride) 8 mg is a single-entity sublingual medication containing buprenorphine. Buprenorphine is used in the treatment of opioid use disorder (OUD) as part of a comprehensive treatment program that includes appropriate medical supervision and behavioral support when indicated.

Medication Overview

Category	Information
Active Ingredient	Buprenorphine hydrochloride
Strength	8 mg
Dosage Form	Sublingual tablet
Administration	Sublingual
Primary Use	Treatment of opioid use disorder
Medication Type	Single-entity buprenorphine

Physical Description & Identification

Original Brand-Name Subutex

The original brand-name Subutex 8 mg sublingual tablet was described as a white, oval-shaped tablet with a stylized “B8” marking on one side and the manufacturer’s logo on the other.

Brand-name Subutex was discontinued in the U.S. market by its manufacturer. However, buprenorphine sublingual tablets and other buprenorphine formulations remain available through prescription treatment programs and pharmacies.

Generic Buprenorphine 8 mg

The appearance of generic buprenorphine 8 mg sublingual tablets can differ between manufacturers. Tablets may vary in shape, color, size, and imprint. Examples of markings found on certain products include “54 411,” “RP b8,” and “460.”

Because tablet markings can vary and manufacturers may change product designs, medication should always be identified using the prescription label, packaging, pharmacist information, and an appropriate medication-identification resource. Do not rely solely on appearance or an imprint found online.

Active Ingredient

The active ingredient is buprenorphine hydrochloride. Unlike combination buprenorphine/naloxone products such as Suboxone, single-entity Subutex contains buprenorphine without naloxone.

How Buprenorphine Works

Buprenorphine is a partial agonist at the mu-opioid receptor. Its pharmacological activity can help reduce opioid withdrawal symptoms and cravings in people receiving treatment for opioid use disorder.

Because buprenorphine has a high affinity for opioid receptors and produces a partial opioid effect, it can also displace other opioids from these receptors. For this reason, the timing of treatment initiation is clinically important and should be determined by the treating healthcare professional.

Administration

Sublingual Administration

Buprenorphine sublingual tablets are designed to be administered under the tongue. The tablet should be allowed to dissolve according to the instructions provided by the prescribing healthcare professional and the medication’s official labeling.

Patients should follow their prescribed administration instructions carefully. The medication should not be altered, crushed, or administered through a different route unless specifically directed by a healthcare professional.

Subutex vs. Buprenorphine/Naloxone

One important distinction is the composition of the medication. Subutex is a single-ingredient buprenorphine product, whereas combination products such as buprenorphine/naloxone contain both buprenorphine and naloxone.

The appropriate formulation depends on the individual’s clinical circumstances and the treatment plan established by the prescribing professional.

Important Safety Information

Buprenorphine is an opioid medication and should be used only under appropriate medical supervision. Although it has pharmacological properties that differ from full opioid agonists, serious adverse effects can occur.

• Use buprenorphine only according to the prescribed treatment plan.
• Do not share prescription medication with another person.
• Combining buprenorphine with alcohol, benzodiazepines, or other central nervous system depressants can increase the risk of serious respiratory depression and other complications.
• Tell your healthcare professional about all prescription medications, over-the-counter medicines, and supplements you use.
• Keep medication secured and out of reach of children and other unauthorized individuals.
• Seek emergency medical assistance if severe breathing problems, extreme sedation, or inability to wake occurs.

Frequently Asked Questions

What is Subutex 8 mg used for?

Subutex is a single-entity buprenorphine medication used in the treatment of opioid use disorder as part of an appropriate treatment program.

Does Subutex contain naloxone?

No. Subutex is a single-entity buprenorphine formulation and does not contain naloxone. Buprenorphine/naloxone products contain both active ingredients.

How is Subutex 8 mg administered?

The sublingual tablet is designed to dissolve under the tongue. Patients should follow the specific administration instructions provided by their healthcare professional and the official medication labeling.

Are all buprenorphine 8 mg tablets identical in appearance?

No. Generic manufacturers can use different tablet shapes, colors, sizes, and identifying imprints. Medication should be confirmed using its packaging, prescription information, and a pharmacist or other qualified healthcare professional when identification is uncertain.