How to Buy Percocet (Oxycodone/Acetaminophen) Online
- What Percocet is and how it is classified
- How the combination of oxycodone and acetaminophen works
- FDA-approved uses and controlled substance schedule
- Dosage forms, strengths, and typical dosing
- Common and serious side effects
- Drug interactions and contraindications
- Acetaminophen liver toxicity warnings and when to contact a clinician
- Personalized medical advice or treatment recommendations
- Specific dosing for your individual condition
- Information about purchasing medications
- Alternatives to prescribed treatments (consult your provider)
On This Page
What Is Percocet?
Percocet is a combination medication containing two active ingredients: oxycodone (an opioid analgesic) and acetaminophen (a non-opioid analgesic/antipyretic). This combination provides synergistic pain relief, allowing effective pain control at lower doses of each component.
Percocet is one of the most frequently prescribed opioid combination products in the United States. It is available in several strength combinations to allow individualized dosing based on pain severity and patient response.
Percocet is designated as a Schedule II controlled substance due to the oxycodone component, indicating a high potential for abuse that may lead to severe psychological or physical dependence.
How Percocet Works
Percocet works through two complementary mechanisms:
- Oxycodone: Binds to mu-opioid receptors in the brain and spinal cord, reducing the perception of pain and emotional response to pain.
- Acetaminophen: Works primarily in the central nervous system to reduce pain and fever. Its exact mechanism is not fully understood but is thought to inhibit cyclooxygenase (COX) enzymes in the brain and spinal cord.
The combination produces greater pain relief than either component alone, allowing lower doses of oxycodone to be used while maintaining effective analgesia.
FDA Schedule & Classification
| Drug Name | Percocet (oxycodone/acetaminophen) |
|---|---|
| Drug Class | Opioid Analgesic Combination |
| DEA Schedule | Schedule II (C-II) |
| Controlled Substance Act | High potential for abuse which may lead to severe psychological or physical dependence |
| Prescription Required | Yes |
| FDA Approval | Brand name discontinued 2015 (generic formulations available) |
| Availability | Generic (oxycodone/acetaminophen); brand-name Percocet no longer available |
FDA-Approved Uses
Percocet is FDA-approved for the management of pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate.
- Moderate to moderately severe pain: Post-surgical pain, dental pain, injury-related pain, cancer pain, and chronic pain conditions.
- The combination formulation allows effective pain control at lower opioid doses compared to oxycodone alone.
The lowest effective dose should be used for the shortest duration consistent with treatment goals.
Dosage Forms & Strengths
| Strength (Oxycodone/Acetaminophen) | Oxycodone Dose | Acetaminophen per Tablet | Typical Starting Dose (Adults) |
|---|---|---|---|
| 2.5/325 | 2.5 mg | 325 mg | 1-2 tablets every 4-6 hours |
| 5/325 | 5 mg | 325 mg | 1 tablet every 4-6 hours |
| 7.5/325 | 7.5 mg | 325 mg | 1 tablet every 4-6 hours |
| 10/325 | 10 mg | 325 mg | 1 tablet every 4-6 hours |
| 10/665 (extended-release) | 10 mg | 665 mg | 1 tablet every 12 hours |
Maximum daily acetaminophen dose: The FDA recommends no more than 3,000-4,000 mg of acetaminophen per day from all sources. With Percocet, this limits the number of tablets that can be safely taken daily. Exceeding this limit can cause severe liver damage.
Acetaminophen max per day considerations:
- With 5/325: Maximum 12 tablets/day (if each contains 325 mg acetaminophen)
- With 10/325: Maximum 6 tablets/day
- Consider total acetaminophen from all sources (Tylenol, cold medications, etc.)
Elderly patients and those with hepatic impairment may require lower doses and closer monitoring.
Side Effects
Common Side Effects
- Constipation — the most common side effect; a bowel regimen is often prescribed
- Nausea and vomiting
- Drowsiness and sedation
- Dizziness
- Headache
- Dry mouth
- Itching (pruritus)
- Sweating
Serious Side Effects
Contact your healthcare provider or seek emergency medical attention if you experience:
- Respiratory depression — slow, shallow, or stopped breathing; can be life-threatening
- Severe allergic reaction (anaphylaxis) — hives, difficulty breathing, swelling of face/throat
- Liver toxicity — watch for dark urine, yellowing of skin/eyes, upper right abdominal pain, nausea, vomiting
- Adrenal insufficiency — chronic opioid use may suppress adrenal function
- Severe hypotension
- Serotonin syndrome — rare but possible when combined with serotonergic drugs
Drug Interactions
Percocet contains two active ingredients with different metabolic pathways. Oxycodone is metabolized by CYP3A4 and CYP2D6, while acetaminophen is metabolized by several pathways including CYP2E1.
Major Interactions (Avoid or Use Extreme Caution)
- Benzodiazepines — concurrent use can cause profound sedation, respiratory depression, coma, and death
- Alcohol — increases both opioid sedation AND liver toxicity risk from acetaminophen; never combine
- Other CNS depressants — muscle relaxants, sleep aids, antihistamines — additive sedation
- MAO inhibitors — can cause serotonin syndrome; avoid concurrent use
- Other opioids — concurrent use increases overdose risk
Moderate Interactions (Monitor Closely)
- CYP3A4 inhibitors (ketoconazole, itraconazole) — may increase oxycodone levels
- CYP2D6 inhibitors (fluoxetine, paroxetine) — may alter oxycodone metabolism
- Anticoagulants (warfarin) — acetaminophen may enhance anticoagulant effect
- Other acetaminophen-containing products — risk of exceeding maximum acetaminophen dose
Dependence and Withdrawal
Percocet carries a significant risk of physical and psychological dependence due to the oxycodone component. Withdrawal symptoms may include:
- Anxiety, restlessness, and irritability
- Muscle aches and pains
- Nausea, vomiting, and diarrhea
- Insomnia
- Goosebumps and sweating
- Rapid heart rate and elevated blood pressure
Do not stop taking Percocet abruptly. Tapering should occur under medical supervision.
Precautions & Warnings
- Liver damage (acetaminophen): Exceeding the maximum acetaminophen dose can cause severe, potentially fatal liver damage. This is the most common cause of acute liver failure in the United States. Limit alcohol use and avoid other acetaminophen-containing products.
- Respiratory depression: The most serious risk of the oxycodone component. Higher risk at higher doses, in elderly patients, and when combined with other CNS depressants.
- Pregnancy: Prolonged use during pregnancy may result in neonatal opioid withdrawal syndrome. Use only when clearly needed.
- Breastfeeding: Both oxycodone and acetaminophen are excreted in breast milk. Use is generally not recommended during breastfeeding.
- Elderly patients: Increased sensitivity to opioids. Start at lower doses and titrate slowly.
- Liver disease: Both oxycodone and acetaminophen are metabolized by the liver. Patients with hepatic impairment require significant dose reduction.
- Kidney disease: Dose reduction may be required in renal impairment.
- History of substance use disorder: Increased risk of misuse and dependence. Use with caution and close monitoring.
- Driving and machinery: Percocet causes drowsiness and impairs coordination. Do not drive or operate heavy machinery until you know how this medication affects you.
When to Contact a Clinician
Reach out to your healthcare provider if you experience any of the following:
- Symptoms are not improving or are worsening after starting the medication
- You notice new or unexpected side effects
- You feel you need to take more medication to achieve the same effect (tolerance)
- You are having difficulty functioning at work or home due to sedation
- You are experiencing mood changes, depression, or thoughts of self-harm
- You are pregnant or planning to become pregnant
- You have questions about how long you should take this medication
- You want to stop the medication — never stop abruptly without medical guidance
Seek emergency care immediately if you experience seizures, difficulty breathing, severe allergic reaction, or loss of consciousness.
Cited Sources
- FDA — Oxycodone/Acetaminophen Prescribing Information (AccessData, FDA)
- MedlinePlus — Oxycodone/Acetaminophen (National Library of Medicine)
- DailyMed — Oxycodone/Acetaminophen Labels (National Library of Medicine)
- FDA — Acetaminophen Safety Communication
- DEA — Controlled Substance Schedules