Acetaminophen (Paracetamol)

Treatment for Osteoarthritis

Typical Dosage: 325-1000mg up to 4x daily, max 4000mg/day

Effectiveness
60%
Safety Score
80%
Clinical Trials
72
Participants
100K

Comparative Safety Scale(Higher is safer)

Cyanide☠️
Meth💀
Cigarettes🚬
Chemo☢️
Alcohol🍺
Morphine💊
Antibiotics💉
Tylenol💊
Exercise🏃
Water💧
80
DangerousModerateSafe
Treatment Details
Dosage Range
325-1000mg up to 4x daily, max 4000mg/day
Time to Effect
30-60 minutes
Treatment Duration
As needed or daily for chronic pain
Evidence Quality
HIGH
Number Needed to Treat (NNT)
7(Treat 7 patients to see 1 additional successful outcome)
Confidence Score
85%confidence in effectiveness data
Health Economics
Annual Cost of Care
Drug Cost:$30
Monitoring:$1,200
Side Effect Mgmt:$0
Total Annual:$1,230
Cost-Effectiveness Analysis
Cost-Effectiveness Rating
EXCELLENT
ICER
$5,000/QALY
QALYs Gained
0.05
Outcome-Based Costs
Cost per Responder
$55
Comparison vs No treatment
Cost Difference
+$30/year
More expensive
QALY Difference
+0.05 QALYs
Better outcomes
Dominance
No dominance
Acetaminophen (Paracetamol) Outcomes

for Osteoarthritis

Efficacy Outcomes
Overall Effectiveness
+60%
Response Rate
+55%
Common Side Effects
Nausea
+7%
Liver damage (with overdose)
+0.1%

WARNING: LIMITED TRIALS AVAILABLE

You can search for trials, but you probably can't join any because the 1% Treaty hasn't passed yet. Most trials are severely limited by lack of funding and bureaucratic barriers. Help change this!

Active Clinical Trials
1 active trial recruiting for Acetaminophen (Paracetamol) in Osteoarthritis

Efficacy and Safety of Celecoxib/Acetaminophen Versus Celecoxib for Diagnosed Osteoarthritis in Acute Exacerbation

NCT06863636RECRUITINGPHASE3
View Study
231 participants
INTERVENTIONAL
Mexico City, Mexico
Started: Sep 9, 2024
Completed Clinical Trials
16 completed trials for Acetaminophen (Paracetamol) in Osteoarthritis

Time of Intravenous Acetaminophen Administration

NCT01699815COMPLETEDPHASE4
View Study
126 participants
INTERVENTIONAL
Durham, United States
Started: Oct 1, 2012

A Safety and Effectiveness Study of Acetaminophen (4000 mg/Day) and Naproxen (750 mg/Day) in the Treatment of Osteoarthritis of the Hip or Knee

NCT00240773COMPLETEDPHASE3
View Study
581 participants
INTERVENTIONAL

Intravenous Versus Oral Acetaminophen in Primary Total Hip Arthroplasty

NCT02839876COMPLETEDPHASE4
View Study
81 participants
INTERVENTIONAL
Durham, United States
Started: Mar 14, 2017

A Study of the Tolerability of Titrated Dose Tramadol/Acetaminophen Combination Tablet in Korean Patients With Osteoarthritis

NCT01063842COMPLETEDPHASE4
View Study
250 participants
INTERVENTIONAL
Started: Aug 1, 2005

A Four-Week Study Comparing Acetaminophen Extended Release and Rofecoxib in the Treatment of Osteoarthritis of the Knee

NCT00568295COMPLETEDPHASE3
View Study
403 participants
INTERVENTIONAL
Started: Oct 1, 1999

An Effectiveness and Safety Study of Two Doses of Acetaminophen Extended Release Caplets in the Treatment of Osteoarthritis of the Hip or Knee

NCT00240786COMPLETEDPHASE3
View Study
483 participants
INTERVENTIONAL
Started: Apr 1, 2002

Post-op Acetaminophen vs NSAID Use on Lumbar Spinal Fusion Outcomes

NCT02700451COMPLETEDNA
View Study
178 participants
INTERVENTIONAL
New York, United States
Started: Mar 1, 2016

Glucosamine Unum In Die [Once A Day] Efficacy (GUIDE) Trial: Glucosamine Sulfate in Patients With Knee Osteoarthritis

NCT00110474COMPLETEDPHASE3
View Study
300 participants
INTERVENTIONAL
Coimbra, Portugal +12 more
Started: May 1, 2000

An Effectiveness and Safety Study of Acetaminophen Extended Release Caplets in the Treatment of Osteoarthritis of the Hip or Knee.

NCT00240799COMPLETEDPHASE3
View Study
542 participants
INTERVENTIONAL

A Comparative Study of Tramadol Hydrochloride Plus Acetaminophen Tablets Maintenance Versus Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) Maintenance in Participants With Knee Osteoarthritis

NCT00635349COMPLETEDPHASE4
View Study
143 participants
INTERVENTIONAL
Started: May 1, 2007

Study To Determine The Effects Of Doses Of Relacatib On The Metabolism Of Acetaminophen, Ibuprofen And Atorvastatin

NCT00411190COMPLETEDPHASE1
View Study
32 participants
INTERVENTIONAL
Antwerp, Belgium +1 more
Started: Oct 19, 2006

Assess the Blood-Oxygen-Level-Dependent (BOLD) Signal Changes in the Brain by Paracetamol as Measured by Functional Magnetic Resonance Imaging (fMRI) in Subjects With Osteoarthritis (OA)

NCT01105936COMPLETEDPHASE4
View Study
31 participants
INTERVENTIONAL
Barcelona, Spain
Started: Sep 1, 2010

Effects Of Native Collagen Type 2 Treatment

NCT02237989COMPLETEDNA
View Study
39 participants
INTERVENTIONAL
Started: Jan 1, 2013

A Study for Moderate Osteoarthritis of the Knee

NCT01478997COMPLETEDPHASE1, PHASE2
View Study
76 participants
INTERVENTIONAL
Nashik, India +1 more
Started: Aug 1, 2011

Comparison of Acetaminophen and PRP Therapy for Knee OA

NCT01782885COMPLETEDNA
View Study
543 participants
INTERVENTIONAL
Monterrey, Mexico
Started: May 1, 2013

A Study of Pain Relief in Osteoarthritis

NCT00298974COMPLETEDPHASE3
View Study
873 participants
INTERVENTIONAL
Birmingham, United States +82 more
Started: Feb 1, 2006
Showing 20 of 73 total trials