Question: Can NyQuil mess up a drug test?

Our drug crime defense lawyers know that Nyquil can cause innocent individuals who are tested for drugs to show a false positive for methamphetamines. This means that even though they are innocent and haven’t taken drugs, they could be charged with a drug crime based on blood testing – all for taking cold medicine.

Will cold medicine affect a drug test?

Dextromethorphan is an active ingredient in Robitussin, Delsym, and other over-the-counter cough suppressants. If you’ve taken a medication with dextromethorphan in it, your drug screen may be positive for opiates and PCP (phencyclidine).

Can cold medicine cause a false positive drug test?

Cold medications, the antidepressant Wellbutrin, and tricyclic antidepressants can trigger false-positive results on tests for amphetamines, according to the review, and the antidepressant Zoloft and the painkiller Daypro can show up as a benzodiazepine problem.

What medications can throw off a drug test?

Other Common Medications That Cause False Positive Drug Test Results

  • Diphenhydramine (Benadryl) – methadone and PCP.
  • Fluoxetine (Prozac) – amphetamine, methamphetamine, and LSD.
  • Metformin (Glucophage) – amphetamine or methamphetamine.
  • Methylphenidate (Ritalin) – amphetamine, methamphetamine, and LSD.
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Can medicine mess up a drug test?

And lots of popular cough and cold meds containing pseudoephedrine can skew test results to show a false positive for speed. I am referring to a plethora of over-the-counter cold and sinus remedies. They also look for opiates. Prescription painkillers almost always will give you a positive test result.

How long does cold medicine stay in your system for drug test?

For most, people codeine can be detected in their urine for up to 48 hours after their last use of the drug. However, it may be detectable for up to 1 week in chronic users. It can be detected in saliva for 21 hours after last use. It can be detected for up to 10 weeks in hair follicle tests.

What should I avoid before a drug test?

For 24 hours prior to collecting the specimen, you should avoid strenuous exercise as well as the following substances and drugs:

  • Acetaminophen.
  • Alcohol.
  • Antihistamines.
  • Aspirin.
  • Caffeine.
  • Vitamin B.

Will ibuprofen 800 make you fail a drug test?

Analgesics/ NSAIDS

Common over-the-counter anti-inflammatory pain medications such as Advil (ibuprofen) and Aleve (naproxen) could make you test positive for barbiturates, THC (cannabinoids), or PCP.

Can b12 cause false positive drug test?

Vitamin B Supplements

This can cause traces of THC to show up on a drug test.

How accurate are urine drug tests?

No. No drug test of this type is 100% accurate. There are several factors that can make the test results negative even though the person is abusing drugs. First, you may have tested for the wrong drugs.

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What is a good excuse for failing a drug test?

Here are a few creative excuses relayed to us:

  1. “I was at a party over the weekend – can I retest later?”
  2. “I didn’t know the brownies I ate were laced with pot!”
  3. “I took some elephant tranquilizers. …
  4. “It must have been the tea that my wife gave me last night.”
  5. “My dentist gave me cocaine for my sore tooth.”

How far back does a urine drug test show?

Most drugs of abuse stay in the body for at least a few days after the last use and are traceable with urine tests. Opioids like heroin and oxycodone are detectable for between 1 and 3 days after last use. Stimulants including cocaine, meth, and ADHD medications are detectable for about 2 or 3 days.

What can cause a false negative on a drug test?

False-negatives can occur when the urine drug concentration is below the threshold level set by the laboratory performing the test. Dilute urine, the duration of time between ingestion of the drug and time of testing, and the quantity of the drug ingested may affect the occurrence of false-negatives.

Psychoactive drugs and substances