Antibiotics Cause False Positives on Heroin Tests. Among the items reported as causing false positive test results are: Pain relievers such as Advil, Nuprin, Motrin and menstrual cramp medications like Midol and Trendar. All drugs containing the widely used pain reliever Ibuprofen are known to cause positive samples for Marijuana.
If you include this extra time on the tarmac, the average total elapsed time from gate to gate flying from Los Angeles, CA to Newark, NJ is 5 hours, 13 minutes.
The flights travelled between Newark Liberty International Airport (EWR) and Singapore Changi Airport (SIN), covering 15,344-kilometre (8,285 nmi) (SQ 21, EWR to SIN) and 16,600-kilometre (9,000 nmi) (SQ 22, SIN to EWR) in about 18 hours flight time.