Summary

Oxycodone is an opioid used in the management of moderate to severe pain. Buy Oxycodone Oxycontin online in New Zealand and Australia

Brand Names

Generic NameOxycodoneDrugBank Accession NumberDB00497Background

Oxycodone is a semisynthetic opioid analgesic derived from thebaine in Germany in 1917.³ It is currently indicated as an immediate release product for moderate to severe pain and as an extended release product for chronic moderate to severe pain requiring continuous opioid analgesics for an extended period.^Label The first oxycodone containing product, Percodan, was approved by the FDA on April 12, 1950. Where to buy oxycodone 10-325 acetaminophen 10 325 online en español

Indication

Oxycodone is indicated for the treatment of moderate to severe pain.^Label There is also an extended release formulation indicated for chronic moderate to severe pain requiring continuous opioid analgesics for an extended period. Buy Oxycodone Oxycontin online in New Zealand and Australia

Pharmacodynamics

Oxycodone acts directly on a number of tissues not related to its analgesic effect. These tissues include the respiratory centre in the brain stem, the cough centre in the medulla, muscles of the pupils, gastrointestinal tract, cardiovascular system, endocrine system, and immune system.^Label Oxycodone’s effect on the respiratory centre is dose dependant respiratory depression.^Label The action on the cough centre is suppression of the cough reflex.^Label Pupils become miopic or decrease in size, peristalsis of the gastrointestinal tract slows, and muscle tone in the colon may increase causing constipation.^Label In the cardiovascular system histamine may be released leading to pruritis, red eyes, flushing, sweating, and decreased blood pressure.^Label Endocrine effects may include increased prolactin, decreased cortisol, and decreased testosterone.^Label It is not yet known if the effects of opioids on the immune system are clinically significant. Buy Oxycodone Oxycontin online in New Zealand and Australia

Mechanism of action

The full mechanism of oxycodone is not known.^Label Under conditions of inflammation or hyperalgesia, opioid receptors in the heart, lungs, liver, gastrointestinal tract, and reproductive system are upregulated and transported to nerve terminals.³ Oxycodone and its active metabolites, noroxycodone, oxymorphone, and noroxymorphone are opioid agonists.¹ These compounds passively diffuse across the blood brain barrier or may be actively transported across by an unknown mechanism.³ Oxycodone and its active metabolites can selectively bind to the mu opioid receptor, but also the kappa and delta opioid receptors in the central nervous system and periphery, and induce a G protein coupled receptor signalling pathway.³ Activation of mu opioid receptors inhibits N-type voltage operated calcium channels, inhibiting responses to pain. Buy Oxycodone Oxycontin online in New Zealand and Australia

Absorption

Oxycodone has an oral bioavailability of 60% to 87% that is unaffected by food.^Label

The area under the curve is 135ng/mL*hr, maximum plasma concentration is 11.5ng/mL, and time to maximum concentration is 5.11hr in patients given a 10mg oral immediate release dose of oxycodone.