Buy OxyContin OP 40mg in UK Online
OxyContin 40mg is a modified-release (prolonged-release) tablet containing 40 mg of oxycodone hydrochloride, a strong opioid analgesic used to treat moderate to severe cancer pain and severe pain requiring continuous treatment with a strong opioid. The modified-release formulation is designed to release oxycodone gradually over approximately 12 hours, providing long-lasting pain relief.
In the United Kingdom, OxyContin is a Prescription Only Medicine (POM) and a Schedule 2 Controlled Drug. It is available only with a valid prescription because of the risks of respiratory depression, overdose, physical dependence, and opioid use disorder.
What Is OxyContin 40mg?
Each prolonged-release tablet contains:
- Active ingredient: Oxycodone hydrochloride 40 mg
- Medicine class: Strong opioid analgesic
- Dosage form: Modified-release (extended-release) tablet
According to the UK Summary of Product Characteristics, the 40 mg tablet is yellow, round, convex, and marked “OC” on one side and “40” on the other.
How Does Oxycontin OP 40mg Work?
Oxycontin OP 40mg works by binding to mu-opioid receptors in the brain and spinal cord. This action:
- Reduces the perception of pain
- Alters the emotional response to pain
- Provides sustained pain relief for approximately 12 hours
Because it also suppresses the brain’s respiratory centre, oxycodone can slow breathing, particularly at higher doses or when combined with alcohol or other sedating medicines.
Medical Uses
Healthcare professionals may prescribe OxyContin 40 mg for:
- Severe chronic pain
- Cancer-related pain
- Pain associated with advanced illnesses
- Severe pain requiring continuous opioid therapy
OxyContin prolonged-release tablets are not intended for breakthrough or “as-needed” pain. They are typically taken every 12 hours as prescribed. (Medicines.org.uk)
Availability in the UK
OxyContin 40mg is available only with a valid prescription.
As a Schedule 2 Controlled Drug:
- Prescriptions must meet strict legal requirements.
- Treatment requires regular medical review.
- The medicine should only be used by the person for whom it was prescribed.
Dosage
The correct dose depends on factors including:
- The severity of pain
- Previous opioid use
- Age
- Kidney and liver function
- Other medical conditions
- Other medicines being taken
OxyContin 40 mg is a high-strength tablet and is generally intended for patients who are already tolerant to opioid medicines. It is not recommended as a starting dose for opioid-naïve patients.
Always:
- Take the medicine exactly as prescribed.
- Swallow the tablet whole with water.
- Do not crush, chew, break, or dissolve the tablet, as doing so can rapidly release a potentially dangerous amount of oxycodone and greatly increase the risk of overdose.
Benefits of Oxycontin OP 40mg
When prescribed appropriately, OxyContin 40 mg may help:
- Provide continuous pain relief
- Improve comfort and physical function
- Reduce pain-related sleep disturbances
- Improve quality of life for people with severe chronic pain
Common Side Effects of Oxycontin OP 40mg
Common side effects include:
- Constipation
- Nausea
- Vomiting
- Drowsiness
- Dizziness
- Dry mouth
- Sweating
- Headache
- Fatigue
- Itching
Constipation is one of the most common side effects of opioid treatment and often requires preventive management.
Serious Side Effects of Oxycontin OP 40mg
Seek emergency medical attention immediately if you experience:
- Slow, shallow, or difficult breathing
- Extreme drowsiness or inability to wake
- Blue lips or fingertips
- Loss of consciousness
- Severe allergic reaction
- Severe confusion
These symptoms may indicate a life-threatening opioid overdose.
Dependence, Tolerance, and Addiction
Long-term oxycodone treatment can lead to:
- Physical dependence
- Tolerance
- Opioid use disorder (addiction)
If treatment is no longer needed, your healthcare professional will usually recommend gradually reducing the dose to minimise withdrawal symptoms.
Drug Interactions
Tell your healthcare professional about all medicines, vitamins, and herbal supplements you take.
Important interactions include:
- Other opioid medicines
- Benzodiazepines
- Sleeping tablets
- Alcohol
- Certain antidepressants
- Some antifungal medicines
- Some antibiotics
- Other medicines that cause drowsiness
These combinations can significantly increase the risk of excessive sedation, respiratory depression, coma, and overdose.
Alcohol
Do not drink alcohol while taking OxyContin.
Alcohol can:
- Increase drowsiness
- Slow breathing
- Increase the risk of overdose
- Increase the risk of fatal respiratory depression.
Driving and Operating Machinery
Oxycontin OP 40mg may impair your ability to:
- Drive
- Ride a bicycle
- Operate machinery
Do not drive or use machinery if you feel sleepy, dizzy, or unable to concentrate safely. Follow UK legal guidance regarding driving while taking opioid medicines.
Pregnancy and Breastfeeding
If you are pregnant, planning a pregnancy, or breastfeeding, discuss treatment with your healthcare professional before taking Oxycontin OP 40mg.
Long-term opioid use during pregnancy may result in neonatal opioid withdrawal syndrome, which requires specialist medical care after birth.
Storage
Store Oxycontin OP 40mg:
- In its original packaging
- Below 25°C
- Away from moisture and excessive heat
- Out of the sight and reach of children
- In a secure location because it is a controlled medicine
Return unused tablets to a pharmacy for safe disposal.
Frequently Asked Questions
Is OxyContin 40mg available in the UK?
Yes. It is available only with a valid prescription and is classified as a Schedule 2 Controlled Drug.
What is OxyContin 40mg used for?
It is prescribed for moderate to severe cancer pain and severe pain requiring continuous opioid treatment.
Is 40 mg a starting dose?
No. Oxycontin OP 40mg is a high-strength tablet and is generally reserved for patients who are already tolerant to opioid medicines.
Can I crush or chew the tablet?
No. Modified-release tablets must always be swallowed whole. Crushing, chewing, or breaking the tablet can rapidly release the medicine and significantly increase the risk of a life-threatening overdose.
Can OxyContin cause dependence?
Yes. Oxycontin OP 40mg can cause physical dependence, tolerance, and opioid use disorder. Regular review by a healthcare professional is recommended throughout treatment.
Key Takeaways
OxyContin 40mg is a modified-release oxycodone medicine used in the UK for moderate to severe cancer pain and other severe pain requiring continuous opioid therapy. It is a prescription-only Schedule 2 Controlled Drug and should be used only under close medical supervision. The 40 mg tablet is yellow and marked “OC” and “40” and is designed to release oxycodone gradually over approximately 12 hours. It should always be swallowed whole and never crushed, chewed, or broken. When used exactly as prescribed, OxyContin can provide effective long-term pain relief, but it also carries important risks, including respiratory depression, overdose, physical dependence, and opioid use disorder.





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