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Doctor insights on: Amoxicillin False Positive

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Can amoxicillin cause a false positive for cocain on a drug test?

Can amoxicillin cause a false positive for cocain on a drug test?

No Proof: The only medical trial to test this was done in on 33 Amoxicilin pts in 2008 and no false positives were found: http://jat.oxfordjournals.org/content/32/4/315.full.pdf Contrast this with the thousands who claim this to be true on the net and we have a dilemma. Perhaps a Lexisnexis legal search for case law is more meaningful as legal perception is reality. ...Read more

Amoxicillin (Definition)

Amoxicillin is in the penicillin class of antibiotics. All penicillins are distinguished by the presence of a beta-lactam ring, and are known to kill bacteria by inhibiting synthesis (production) ...Read more


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I'm getting conflicting info about amoxicillin, will it cause a false positive for Cocaine? I'm getting ready to take a DOT physical.

I'm getting conflicting info about amoxicillin, will it cause a false positive for Cocaine? I'm getting ready to take a DOT physical.

What is your source: There are both and lay medical literature citations which will state a causal relationship between amoxicillin and cocaine in a urine drug test. However, check this link out. It comes from what I consider to be a highly reputable source which states that there is NO relationship between those 2 things: http://www.ncbi.nlm.nih.gov/pubmed/18430300. All the same let them know you're on amoxicillin ...Read more

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Can prednisone and augmentin (amoxicillin and clavulanate) affect heroin urine test with a false positive?

Can prednisone and augmentin (amoxicillin and clavulanate) affect heroin urine test with a false positive?

No: Although screening tests be test positive for closely related compounds, screening tests are just that and are not valid until confirmed by specific tests such as gas chromatography or mass spectroscopy which are highly specific and have virtually no false positives. ...Read more

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Can amoxicillin alter a gonorrhea test to be negative after the first test was positive a week and a half ago from a vaginal culture swab?

Can amoxicillin alter a gonorrhea test to be negative after the first test was positive a week and a half ago from a vaginal culture swab?

Wrong Med: Amoxicillin will not treat gonorrhea but antibiotics can interfere with test. False negatives are well known to occur. You need to shot to treat all forms of gonorrhea now. Pills no longer work. ...Read more

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My 4 yr old daughter was diagnosed positive for strep. While on amoxicillin, 4 days later bad night cough,2 days later woke up covered in a rash.

My 4 yr old daughter was diagnosed positive for strep. While on amoxicillin, 4 days later bad night cough,2 days later woke up covered in a rash.

Penicillin allergy : The 2 are probably not related. Stop amoxicillin. Give her benadryl If the cough continues she will need to see the dr again fit tt and to see if she needs antibiotics for further tt of strep ...Read more

Dr. Philip Miller
1,086 doctors shared insights

Amoxil (Definition)

Amoxil is a third generation penicillin which is a kind of penincillin type drug (anti-bacterial ...Read more