Drowsiness, dizziness, constipation, or headache may occur. If any of these effects persist or worsen, tell your doctor or pharmacist right away.

To prevent constipation, eat dietary fiber, drink enough water, and exercise. You may also need to take a laxative. Ask your pharmacist which type of laxative is right for you.

To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Severe (possibly fatal) breathing problems can occur if this medication is abused, injected, or mixed with other depressants (such as alcohol, benzodiazepines including diazepam, other opioids).

Tell your doctor right away if you have any serious side effects, including: interrupted breathing during sleep (sleep apnea), mental/mood changes (such as agitation, confusion, hallucinations), stomach/abdominal pain, signs of your adrenal glands not working well (such as unusual tiredness, weight loss).

Get medical help right away if any of these rare but serious side effects occur: fainting, fast/irregular heartbeat, severe dizziness, slow/shallow breathing, unusual drowsiness/difficulty waking up.

Although this medication is used to prevent withdrawal reactions, it may rarely cause opioid withdrawal symptoms, including diarrhea, severe mental/mood changes (such as anxiety, irritability, trouble sleeping), muscle stiffness or shakiness. This is more likely when you first start treatment or if you have been using long-acting opioids such as methadone. If such symptoms occur, notify your doctor or pharmacist right away.

This drug may rarely cause serious liver disease. Get medical help right away if you have any symptoms of liver damage, including: dark urine, persistent nausea/vomiting, loss of appetite, yellowing eyes/skin, severe stomach/abdominal pain.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US – Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. buy buprenorphine online

Buprenorphine is an opioid used to treat opioid use disorder, acute pain, and chronic pain.^[8] It can be used under the tongue (sublingual), in the cheek (buccal), by injection (intravenous and subcutaneous), as a skin patch (transdermal), or as an implant.^[8][9] For opioid use disorder, it is typically started when withdrawal symptoms have begun and for the first two days of treatment under direct observation of a health-care provider.^[8] In the United States, the combination formulation of buprenorphine/naloxone (Suboxone) is usually prescribed to discourage misuse by injection.^[8] Maximum pain relief is generally within an hour with effects up to 24 hours.^[8] Buprenorphine affects different types of opioid receptors in different ways.^[8] Depending on the type of receptor, it may be an agonist, partial agonist, or antagonist.^[8] In the treatment of opioid use disorder buprenorphine is an agonist/antagonist, meaning that it relieves withdrawal symptoms from other opioids and induces some euphoria, but also blocks the ability for many other opioids, including heroin, to cause an effect. Unlike full agonists like heroin or methadone, buprenorphine has a ceiling effect, such that taking more medicine will not increase the effects of the drug.^[10]