What would cause a false-positive for codeine?

What would cause a false-positive for codeine?

As morphine and codeine are derived from opium poppy seeds, the intake of relatively small amounts of poppy seeds may result in false-positives for opiates, including the consumption of poppy-seed cookies (having ~1 tsp of poppy-seed filling) or poppy-seed bagels.

What would cause a false-positive for methadone?

Several medications can produce a false-positive result for methadone on the urine drug screen: diphenhydramine, doxylamine, clomipramine, chlorpromazine, quetiapine, thioridazine, and verapamil.

Does hydrocodone have codeine in it?

No, hydrocodone does not contain codeine. Hydrocodone is a distinct and separate opioid from codeine.

Can Benadryl give a false positive for methadone?

Diphenhydramine (Benadryl) is an antihistamine found in allergy medications like Benadryl and sleep aids like Tylenol PM and Advil PM. If you’ve taken diphenhydramine, your drug screen may show a positive result for opiates, methadone, or PCP.

How much codeine does Vicodin have?

Both are currently schedule III narcotics, but that will change for Vicodin. In this trial patients with acute extremity pain were discharged home from the emergency room with a 3-day supply of Vicodin (hydrocodone/acetaminophen 5 mg /500 mg) or Tylenol #3 (codeine/acetaminophen 30 mg/300 mg).

What will make you test positive for benzodiazepines?

According to URMC, the following drugs may cause a false positive result in benzodiazepine urine tests:

• etodolac (Lodine)
• fenoprofen (Nalfon)
• naproxen (Aleve)
• oxaprozin (Daypro)
• sertraline (Zoloft)
• tolmetin (Tolectin)

Can Tylenol make u fail a drug test?

Benadryl, Tylenol PM, Advil PM, and other medications contain diphenhydramine. This could lead to positive results in screenings for methadone, PCP, or opiates.