What Medications Can Cause A False Positive For Methamphetamine (Page 3) (Top voted first)

Can certain over the counter medications or prescription medications cause a false positive for Methamphetamine in a blood test?

REPLY

REPORT

Hi wanted to let u know that zantac has resulted in a false positive for me several times

REPLY

Was this helpful? 2

Its the zantac I have the same problem

REPLY

Was this helpful? 2

I just took a urine test for a job and tested positive for THC..I do not smoke marijuana...the only thing I take is vitamin supplements and Garcinia Cambogia...is it possible that this made me test positive

REPLY

Was this helpful? 3

I'm sorry this happened to you! After my*positive meth* test I went back in and talked to my Dr and had about 100 pages of people saying it was zantac/rantidine... He said your not on it... I pulled it out of my purse with his name on refilled few days before... Oh well no that cannot cause false positive... I said I want a lab request to get blood drawn. He wouldn't give it to me! So I went to walk in clinic where I got lab paper had blood drawn and what do you know NO meth and did hair test and samething it was clean! My dr is 30 min ferry ride away! Went backver with my results n showed him and the hair shows ip to 3months... I said so help me god if you pull this s*** again and don't try and help me clear my name I'm contact the media I'm gonna write to the paper! He looked at me funny.... I said without even asking me you were ready to cut me off of my meds which I cannot get out of bed with... I've got 9/3yr old kids n am single mother! I was going to use my dr test for court but cannot do so now! :( what's funny is they NEVER take credit or own their mistakes!!!

REPLY

Was this helpful? 2

Diphenhydramine does NOT contain any methamphetamine, or amphetamines. Please be accurate when you post nonsense. I happen to be a Forensic Toxicologist.

REPLY

Was this helpful? 2

go on the internet an find a legitimate source about OTC's Wikipedia is usually a good source an print the page out don't print out the opinions of other people that will not. help you find a page that shows the FACTS in black an white an it's better to find. a page on the specific OTC that gave you or ur husband the false positive you or your husband take that page to both doctors that ignored OTC's can cause a false positive if they still won't acknowledge the information you found tell them you will get a lawyer prove your innocence in court an have both of them fired immediately now that's if you're 100% innocent an the OTC is to blame for your situation going through a lawyer is inconvenient I know but letting them have there way will put you even more in jeopardy

REPLY

Was this helpful? 2

Think some are mixed up or just adding to the convo.. at the beginning of this we were talking about What can cause false positive for METHAMPHETAMINE.. Not Methadone.. I'm happy to say thanks to the help and suggestions from here I cleared my name. All is gd.. except.. I found out that I have Arthritis in 8 bottom disk, and left hip has grown over pelvic Bone by 2 inches and Right one is just clicking*rubbing bone on bone and right also has degenerative disease on top of the Fibromyalgia, Disk degenerative disease on bottom 6 disk, scoliosis, uneven hips.. I'm currently on waiting list for emergency hip surgery.. I meet surgeon soon so he can decide whether or not he can fix my left hip or he's going to replace it.. but without anything I won't be able to walk soon... remember Jerry we were chatting about all of the hell that one dr was putting me thru? well found new dr who's great about helping my pain n getting me talk to different pain people and he said for the last 10 month only thing dr put on my note was that wanted refill.. I was in begging n crying saying I could feel bone on bone running n this was all new.. he kept sayi.g Fibromyalgia doesn't do that you just need counseling.. blah blah.. my dr now is helping me go after and either report him if course and sue for money if possible. The new dr said not once did be even put on notes that I wanted new up to date blood n xrays... and waiting for orthopedic surgeon but all of this including surgery could've been prevented if old dr did xrays, blood work or sent me specialist! if you guys are dead serious about knowing somethings wrong... by law your entitled to second opinion without just transferring to new drs.. my new dr has increased pains meds to keep me comfy until I can get operation done... but even doing that I'm going to suffer lots with everything g wrong with my back.. and chances are that fixing hips will make back pain worse but atleast I will be still walking! I'm soo thankful for all your kind words n help Jerry! :)

REPLY

Was this helpful? 2

the doctor who visits this forum says there is no false positives for meth in a blood test unless you have taken it, I haven't researched it but it sounds accurate to me you can check out his post about it below it's post number 155

REPLY

Was this helpful? 3

well jaysin, I tested positive for methamphetamine on a urine test and to make a long story short, after I failed the test I offered to take a blood test right there on the spot but they sent me to a hospital when they should have sent me to a lab. So the next morning I explained then they sent me to a lab they drew blood my blood came back negative then they said it had time to leave my system overnight an said I was guilty an gonna put me in classes. So I just went got a hair test without telling them an the hair test cleared me instantly. I'm not an expert on hair follicle test but its either 1 of a few things, 1) your test wasn't confirmed with what they call GC/ME or something like that. 2) human error in the lab getting your hair mixed up with somebody else's (which doesn't happen often but does happen sometimes) or 3) you actually had methamphetamine in your system. Not saying you're guilty I'm just saying those are the only reasons I can think of to cause you to fail a hair test, but just a tip if you have did methamphetamine an just looking for a way out of your situation the best advice I can give you is to just come clean an admit it because you can keep running but it will eventually run you down and if your girlfriend has a serious drug problem she needs to try an get help soon before its too late. good luck

REPLY

Was this helpful? 2

On a UA THC will show up for "up to" 30 days with a "maximum" of 40 days. If the test is Blood test rather than urine you could "possibly" add another 2 weeks to that, but "ONLY" if they are testing for "any detectable amount" most judicial based tests such as for probation or drug court use the same federal standard as a pre-employment drug test and these are "all" regulated to only be deemed a positive result IF the substance they are screening for is "above" a certain PPM/KG of body mass or PPM/ per units of blood/urine. The "ONLY WAY" she caught a positive after 6 months if your 110% certain she's being honest about her use is if they do a hair test. Hair grows about 1/2"-1" per month so if she hasn't had her hair cut they could, "technically" see every chemical she put in her body going back as far as the time frame the length of her hair would allow, "BUT", we STILL have the issue that the vast majority of situations that require anyone to take a drug test are regulated by federal laws and they can't just test for anything they want going back as far as they want and show any detectable amount as a positive

REPLY

Was this helpful? 2

Where can we find the list of all the drugs that can show a false positive on a drug test?

REPLY

Was this helpful? 2

Ive read were Antacids can give false positive for meth

REPLY

Was this helpful? 2

Zantac does show up as Methamphetamine on a drug test, I work at a Family practice and we do regular drug screens on patients, and Zantac shows up on the drug screen. Just let the lab know all meds you take.

REPLY

Was this helpful? 2

certo works for weed. A 32 oz Gatorade, i bag of certo pectin. Drink a drink out of the bottle then squeeze all the certo into the Gatorade. Shake vigorously for 45 seconds. Down it. Let that flow through for 10 minutes then grab a gallon of cold water and start chugging along with 6 b12 pills and a energy drink with at least 200% niacinamide. You have to start an hour and a half before you go in. Do not piss more than three times before you take the test or you will destroy the lining you have made shielding the way for clean urine. When you go to pee you want the first of your stream to go in to the toilet. About halfway through fill the cup. I smoked weed everyday including the day I took my test and I am on parole.

REPLY

Was this helpful? 2

Whenever you take a rug test anywhere for any reason take a printout of all meds prescribed and a letter from ur dr of any otc meds told to take so they cannot fail you due to following an order from your doctor. Also when you are taking any meds it is ways good to do a little research before deciding to take. I won't take meds that cause weight gain or sexual desire change. I was prescribed a pain med once that come to find out was a short dose of heroin and my husband was as well. I luckily didn't become an addict but not the same or him. It was hell when he finally started to quit and he was very abusive something he never has been. No one told us and we didn't ask.. just for all those out there concerned.

REPLY

Was this helpful? 1

Is there any way to tell the difference between the prescription from desoxyne and street meth. My boyfriend was an addict and claims he would fail a drug screen because he recently took desoxyne, not street meth. How can I find out which was actually taken?

REPLY

Was this helpful? 2

well folks just incase yall were wondering my hair test results got in today and it was a BIG NEGATIVE!!!! just like I knew it would be not a trace of any drug including meth the drug they tried to say I was on in my system. and it was a quick negative too got my results just in the neck of time I gotta report Monday now let them say I'm on something an try to get me in there classes to help me get off stuff that I'm not on smh now I'll take a heartburn class if they wanna give it lmao but after my fine is completely paid an I see there gonna still try to BS around an keep me some kina way I'll get a lawyer have him prove I'm not on drugs and he will get me released good luck to the rest of yall who are dealing with sorry ppl and had the misfortune to fall victim to zantac the way I did I hope you all get things straightened out god bless

REPLY

Was this helpful? 1

To everyone wondering in may 2013 I was on a few things and got clean but method was never one of them I've been accused 3 times of this and I was insulted and angry. I have however been taking zantac aka ranitidine since I was 15 and it does indeed show as false positive in urine tests. I highly suggest prilosec aka omaprazol which is what I switched to and I've passed every urine test since then with flying colors

REPLY

Was this helpful? 1

Thanks for the tip yea I'm researching a new alternative for heartburn that won't interfere with any test and I'll check more into prilosec its just a wonder zantac hasn't been sued over this by now or maybe they have they just been sweeping it under the rug so it won't effect there sales smh

REPLY

Was this helpful? 1

I got a question for anybody who knows anything about a hair test how does it work? like does it go back 90days from the day the. hair was collected? or does it take a certain amount of time to get in your hair after you take a drug? the reason I ask is on the 6th I tested positive for meth and also tested positive on the 20th 4days ago I took a hair test yesterday I got my results everything came back negative so when I report to probation Monday and show them my results are they gonna say something to try and debunk my hair test the way they did my blood test and say something like it didn't have enough time to get in my hair so this doesn't prove you wasn't on meth those 2days I failed there urine test? or does my hair test prove beyond the shadow of a doubt that meth was not in my system during the time there test said I was positive? and prove that there test did in fact give me a false positive for meth both times and there is no debunking my hair test? thanks to anybody who can help answer this question for me

REPLY

Was this helpful? 1

I take 6 to 10 meds daily for pain and antidepressants, allergies, insulin, sudifed, ansanzidy, sleep meds, some others ...

13 REPLIES

I had a hair follicle test done and it came back positive for amphetamines, and methamphetamine. I was wanting to know i...

33 REPLIES

What medications show a false positive for methamphetamine. What is the difference between methamphetamine and amphetami...

1 REPLY

In recent times I have taken Oxycontin, Oxycodone, Valium, Soma, Testosterone, Nexium, Amlodipine, Fenofibrate, Chantix,...

4 REPLIES

This is a false result. I take albuterol inhaler, and Nasnex and chlorhalidone and ranitidine and Norco 10/325 and alpra...

9 REPLIES

NOT TAKING ANYTHING BUT HYDROCODONE, BUT SHOWED UP POSITIVE FOR BENZOS. NEED A LIST OF MEDICATIONS BOTH PRESCRIBED AND O...

6 REPLIES

I'm in a hospital paralyzed from my T-6 down becuz of an abscess which was MRSA on that vertebrae in my spine! Well ...

5 REPLIES

Questions to ask a lab tech: I have a kidney disease. Is it possible that this is the reason why my urine test keeps com...

4 REPLIES

I'm on a lot of meds: zantac 300 mg + Xanax 1 mg + morphine 15 mg + norcos 10mg + rendering 45mg + wellbutrin 60mg +...

2 REPLIES

I failed a drug test eight days after being given an injection by my doctor. My career depends on finding out what it wa...

6 REPLIES