Oxycodone (sold under the brand names Roxicodone and OxyContin, which is the extended release form, among others) is an opioid medication used for treatment of moderate to severe pain. It is highly addictiveand is commonly used recreationally by people who have an opioid use disorder. It is usually taken by mouth, and is available in immediate-release and controlled-release formulations.Onset of pain relief typically begins within fifteen minutes and lasts for up to six hours with the immediate-release formulation.In the United Kingdom, it is available by injection.Combination products are also available with paracetamol (acetaminophen), ibuprofen, naloxone, naltrexone, and aspirin.Buy Oxycodone online
Common effects include euphoria, constipation, nausea, vomiting, loss of appetite, drowsiness, dizziness, itching, dry mouth, and sweating. Severe side effects may include addiction, dependence, hallucinations, respiratory depression (a reduction in breathing), bradycardia, and low blood pressure. Those allergic to codeine may also be allergic to oxycodone. Use of oxycodone in early pregnancy appears relatively safe.Opioid withdrawal may occur if rapidly stopped. Oxycodone acts by activating the μ-opioid receptor When taken by mouth, it has roughly 1.5 times the effect of the equivalent amount of morphine.Buy Oxycodone online
Oxycodone was first made in Germany in 1916 from Thebaine. It is available as a generic medication.In 2018, it was the 48th most commonly prescribed medication in the United States, with more than 16 million prescriptions.A number of abuse-deterrent formulations are available, such as in combination with naloxone or naltrexone.
Pharmacology & Pharmacodynamics
Oxycodone, a semi-synthetic opioid, is a highly selective full agonist of the μ-opioid receptor (MOR). This is the main biological target of the endogenous opioid neuropeptide β-endorphin. Oxycodone has low affinity for the δ-opioid receptor (DOR) and the κ-opioid receptor (KOR), where it is an agonist similarly. After oxycodone binds to the MOR, a G protein-complex is released, which inhibits the release of neurotransmitters by the cell by decreasing the amount of cAMP produced, closing calcium channels, and opening potassium channels. Opioids like oxycodone are thought to produce their analgesic effects via activation of the MOR in the midbrain periaqueductal gray (PAG) and rostral ventromedial medulla (RVM).Conversely, they are thought to produce reward and addiction via activation of the MOR in the mesolimbic reward pathway, including in the ventral tegmental area, nucleus accumbens, and ventral pallidum. Tolerance to the analgesic and rewarding effects of opioids is complex and occurs due to receptor-level tolerance (e.g., MOR downregulation), cellular-level tolerance (e.g., cAMP upregulation), and system-level tolerance (e.g., neural adaptation due to induction of ΔFosB expression).
Taken orally, 20 mg of immediate-release oxycodone is considered to be equivalent in analgesic effect to 30 mg of morphine, while extended release oxycodone is considered to be twice as potent as oral morphine.Buy Oxycodone online
Similarly to most other opioids, oxycodone increases prolactin secretion, but its influence on testosterone levels is unknown. Unlike morphine, oxycodone lacks immunosuppressive activity (measured by natural killer cell activity and interleukin 2 production in vitro); the clinical relevance of this has not been clarified.
Active metabolites
A few of the metabolites of oxycodone have also been found to be active as MOR agonists, some of which notably have much higher affinity for (as well as higher efficacy at) the MOR in comparison. Oxymorphone possesses 3- to 5-fold higher affinity for the MOR than does oxycodone, while noroxycodone and noroxymorphone possess one-third of and 3-fold higher affinity for the MOR, respectively, and MOR activation is 5- to 10-fold less with noroxycodone but 2-fold higher with noroxymorphone relative to oxycodone. Noroxycodone, noroxymorphone, and oxymorphone also have longer biological half-lives than oxycodoneBuy Oxycodone online
Before taking this medicine
You should not use oxycodone if you are allergic to it, or if you have: Buy Oxycodone online
- severe asthma or breathing problems; or
- a blockage in your stomach or intestines.
You should not use this medicine if you are already using a similar opioid medicine and are tolerant to it. Do not use this medicine if you have used a MAO inhibitor in the past 14 days, such as isocarboxazid, linezolid, phenelzine, rasagiline, selegiline, or tranylcypromine or have received a methylene blue injection.Buy Oxycodone online
Most brands of oxycodone are not approved for use in people under the age of 18. OxyContin should not be given to a child younger than 11 years old.
To make sure this medicine is safe for you, tell your doctor if you have ever had:
- breathing problems, sleep apnea;
- a head injury, brain tumor, or seizures;
- drug or alcohol addiction, or mental illness;
- lung disease;
- liver or kidney disease;
- thyroid disorder;
- adrenal disease (such as Addison’s disease;
- urination problems; or
- problems with your gallbladder or pancreas.
If you use opioid medicine while you are pregnant, your baby could become dependent on the drug. This can cause life-threatening withdrawal symptoms in the baby after it is born. Babies born dependent on opioids may need medical treatment for several weeks. Tell your doctor if you are pregnant before using oxycodone. If you become pregnant while taking oxycodone, do not stop your medication suddenly without talking to your doctor. You may need to decrease your medicine gradually.Buy Oxycodone online
Ask a doctor before using oxycodone if you are breastfeeding. Tell your doctor if you notice severe drowsiness or slow breathing in the nursing baby.
How should I use oxycodone?
Take oxycodone exactly as prescribed. Follow the directions on your prescription label and read all medication guides. Never use this medicine in larger amounts, or for longer than prescribed. Tell your doctor if you feel an increased urge to take more of oxycodone.Buy Oxycodone online
Never share opioid medicine with another person, especially someone with a history of drug abuse or addiction. MISUSE CAN CAUSE ADDICTION, OVERDOSE, OR DEATH. Keep the medication in a place where others cannot get to it. Selling or giving away opioid medicine is against the law.
Stop taking all other around-the-clock opioid pain medicines when you start taking extended-release oxycodone.
Take with food.
Swallow the capsule or tablet whole to avoid exposure to a potentially fatal overdose. Do not crush, chew, break, open, or dissolve.
If you cannot swallow a capsule whole, open it and sprinkle the medicine into a spoonful of pudding or applesauce. Swallow the mixture right away without chewing. Do not save it for later use.
Never crush or break an oxycodone pill to inhale the powder or mix it into a liquid to inject the drug into your vein. This can cause in death.
Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon).
You should not stop using oxycodone suddenly. Follow your doctor’s instructions about gradually decreasing your dose.Buy Oxycodone online
Store at room temperature, away from heat, moisture, and light. Keep track of your medicine. Oxycodone is a drug of abuse and you should be aware if anyone is using your medicine improperly or without a prescription.
Do not keep leftover opioid medication. Just one dose can cause death in someone using this medicine accidentally or improperly. Ask your pharmacist where to locate a drug take-back disposal program. If there is no take-back program, flush the unused medicine down the toilet.
Interactions that increase your risk of side effects
Increased side effects from other drugs: Taking oxycodone with certain medications raises your risk of side effects from these drugs. Examples of these drugs include:
- Benzodiazepines such as diazepam, lorazepam, clonazepam, temazepam, or alprazolam. Increased side effects can include severe drowsiness, slowed or stopped breathing, coma, or death. If you need to take one of these drugs with oxycodone, your doctor will monitor you closely for side effects.
- Monoamine oxidase inhibitors (MAOIs), a type of antidepressant, such as tranylcypromine, isocarboxazid, phenelzine, or selegiline. Increased side effects can include anxiety, confusion, slowed breathing, or coma. Do not take oxycodone if you’re taking an MAOI, or have taken an MAOI within the last 14 days.
- Antidepressants such as doxepin, fluvoxamine, duloxetine, or venlafaxine. Increased side effects can include higher levels of serotonin in your body. This can lead to a condition called serotonin syndrome. Symptoms can include agitation, restlessness, fast heartbeat, increased body temperature, nausea, or vomiting.
- Muscle relaxants such as baclofen, cyclobenzaprine, or methocarbamol. Increased side effects can include breathing problems.
- Hypnotics such as zolpidem, temazepam, or estazolam. Increased side effects can include breathing problems, low blood pressure, extreme drowsiness, or coma. Your doctor may prescribe a lower dosage of oxycodone for you.
- Antipsychotic drugs, such as chlorpromazine, prochlorperazine, or thioridazine. Increased side effects can include breathing problems, low blood pressure, extreme drowsiness, or coma. Your doctor may prescribe a lower dosage of oxycodone for you.
- Anticholinergic drugs, such as atropine, scopolamine, or benztropine. Increased side effects can include problems urinating. They can also include severe constipation, which could lead to more serious bowel problems.
Increased side effects from oxycodone: Taking oxycodone with certain medications raises your risk of side effects from oxycodone. This is because the amount of oxycodone in your body may be increased. Examples of these drugs include:
- Antifungal drugs such as voriconazole or ketoconazole. If you take these drugs with oxycodone, your doctor may monitor you more often. They may adjust your dosage as needed.
- Antibiotics such as erythromycin or clarithromycin. If you take these drugs with oxycodone, your doctor may monitor you more often. They may adjust your dosage as needed.
- HIV drugs such as ritonavir, darunavir, or atazanavir. If you take these drugs with oxycodone, your doctor may monitor you more often. They may adjust your dosage as needed.
- Drugs such as bupropion. If you take bupropion with oxycodone, your doctor may monitor you more often. They may adjust your dosage as needed.
- Anti-arrhythmia drugs such as amiodarone or quinidine. If you take these drugs with oxycodone, your doctor may monitor you more often. They may adjust your dosage as needed.
Interactions that can make oxycodone less effective
When oxycodone is used with certain drugs, it may not work as well to treat your pain. This is because the amount of oxycodone in your body may be decreased. Examples of these drugs include:
- Antibiotics such as rifampin, rifabutin, or rifapentine. If you take these drugs with oxycodone, your doctor may monitor you more often. They may adjust your dosage as needed.
- Anticonvulsants such as carbamazepine and phenytoin. If you take these drugs with oxycodone, your doctor may monitor you more often. They may adjust your dosage as needed.
