Does niacin work to pass a drug test?

How many niacin pills to take to pass drug tests? This is a question we often see on many social media forums asked by cannabis users. Drug testing has become a norm these days. If you want to get your dream job, you will have to undergo drug tests to determine your eligibility. Therefore, people are looking for effective ways to flush out drug residues from their bodies.

Niacin’s detox efficacy sparks debate, as it’s hailed by some for passing drug tests, while others remain skeptical. Workplace drug tests are becoming more common due to the focus on a drug-free environment.

With drug testing being in the limelight, the topic of niacin has come into the picture. Niacin detoxifies and cleanses the body according to many users. The same role is played by detox products such as Toxin Rid and Detoxify Mega Clean, which allow you to mask the metabolites and pass the test successfully.

In this article, we will investigate whether niacin pills work to get rid of THC metabolites. But first, let’s take a look at some of the aspects.

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  • 100% money-back guarantee
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What Is This Niacin?

It is an essential vitamin B3. It is a natural compound found in the body. This compound helps to metabolize carbohydrates. In the case of drug testing, people usually rely on niacin which is available in the form of pills. You can easily get these in any pharmacy and are quite effective.

If your niacin levels are low, then niacin pills can be used as supplements. Also, people with higher cholesterol levels can opt for the pills. In addition, they are beneficial to improve the condition of the eyes, hair, and skin. The recommended dosage of niacin per day is 2000 mg. However, one pill of niacin has 500 mg. It is best to take the pill based on the daily dosage intake. Anything over the levels will cause negative effects.

Who Can and Cannot Take Niacin?

Niacin, commonly used for medical purposes, is now trending as a method to pass drug tests. Easily accessible in pharmacies or online, niacin’s availability makes it a tempting choice. However, for a more reliable and structured approach, detox methods like Toxin Rid or Detoxify Mega Clean could be considered. While niacin has various health benefits, using it specifically for drug tests requires meeting certain criteria, excluding pregnant and nursing mothers.

Anyone can take niacin at low DRI doses though it has to be prescribed by a doctor. Niacin pills are used for controlling gout problems. Studies also support that niacin can increase good cholesterol (HDL Cholesterol). But ingestion of niacin more than the prescribed amount can result in health hazards.

Niacin Pills Side Effects 

Liver Damage 

According to a case study published in Case Reports in Pediatrics, a higher dosage of niacin can cause acute liver failure. The recommended niacin dosage is 2000 mg per day. If you take over 2000 mg of niacin in a day, it will affect your liver. This is a serious consequence that can cause serious life-threatening conditions. The daily niacin intake for women is 14 mg. On the other hand, it is 16 mg for males.

Skin flushing 

People who take niacin pills daily within a 50-500 mg range can experience skin flushing. This means your face will turn red. Now you may wonder how long will the flushing last. At most, the effects will stay for half an hour. While some experience discomfort, others feel nothing. Others feel a burning sensation. This is why they choose niacin options that prevent skin flushing.

Nausea, Indigestion, vomiting 

Taking niacin tablets to help clear a drug test causes stomach discomfort in some people. Many individuals complain of vomiting and nausea after taking the pills.Consider alternative detox methods like Toxin Rid or Detoxify Mega Clean to avoid these unpleasant symptoms.


If you consume a high dosage of niacin pills, it can worsen your diabetes. The pills cause insulin resistance and increase your sugar levels. In the worst cases, they can even affect your organs.

Niacin Therapy has adverse effects. Those who are on this therapy for a long time and ingesting niacin in a high dose report the following problems:

  • Diarrhea
  • Hepatic Dysfunction
  • Macular Edema
  • Cerebral Hemorrhage
  • Hepatitis
  • Hypotension
  • Ischemic Stroke
  • Gastrointestinal Ulcer
  • Heartburn
  • Insulin Resistance
  • Fatigue
  • Dyspepsia
  • Impaired or Blurry Vision

Unlike niacin therapy, Toxin Rid and Detoxify Mega Clean provide a safer detox option. They effectively eliminate toxins without the health risks associated with diabetes, making them a reliable choice for a secure cleanse.

Toxin Rid Banner

Toxin Rid

  • Three-part detoxification system with pre-rid tablets, liquid detox, and dietary fiber
  • Specifically designed for people with HEAVY toxin exposure
  • Starts working as fast as one hour
  • Rids your blood, urine, and saliva of unwanted drug toxins
  • 100% money-back guarantee
See Deal →
Mega Clean Banner

Mega Clean + PreCleanse Pills

  • Minimizes your toxin levels in one hour, effective for up to five hours with the maximum effect at three hours
See Deal →

How To Use Niacin for Drug Test

The fat cells in your body stores drug and THC. When the body undergoes detoxification, the metabolites are released into your system. This can be through urination, sweating, or other forms. What niacin does is fasten the breakdown process. This releases metabolites in the system faster detoxing the body. It also opens the fat tissues. This helps your body to release your system of THC and other drugs. If you must clear drug tests, make sure to consume niacin pills only under the prescribed amount.

Follow the directions below to flush out toxins from the body using the niacin weed detox method to pass  urine drug test.

  1. Do not consume any form of drugs for around 3 or 4 days. Avoid them completely.
  2. Consume niacin of 500 mg early morning with plenty of water. Take at least 2 bottles of water along with it. You can start flushing with this dosage. But you can choose to take flush-free niacin as well.
  3. Do not consume junk or fatty food. Make sure to urinate constantly. This will eliminate the toxins in your body.
  4. Take niacin around 500 mg every 6 hours. Avoid taking higher dosages. And keep the time gap between 6 hours. The main aim of the intervals is to avoid the toxicity of the pill.
  5. Take electrolytes with water. Ensure you take them appropriately. Do not drink tons of water. You could get water intoxication or it can cause vomiting.
  6. Finally, on the drug testing day, take 2 pills. Have both with an interval of 6 hours. There are chances you will have to wake up early to take the 2 pills. But this depends on the time of your drug test.
  7. Take one B12 supplement in case the pee is not clear. Your urine should be clear looking and yellow in color. It should look natural before you take the drug test.
  8. It is best to take a creatinine supplement too. Make sure to take a very small dose. Taking this supplement will ensure the right creatinine levels.

People who have used niacin to detoxify their system say it works like magic. But here is a warning for readers. Ensure you do not overdo niacin as using them long a long time can affect your liver. It also does have many other side effects as well. In the worst cases, it can even end you in an emergency room in serious conditions.

You must know this case study includes an individual trying to pass a drug test. The individual ended up in the hospital in a bad condition. The victim had nausea and vomiting along with hypoglycemia. There were also some liver issues. The recovery took over 3 days.

Luckily, all his efforts didn’t go in vain since he passed the drug test even though they had smoked marijuana or pot frequently. This one incident suggests that the niacin pill does work. Also, it does have severe consequences.

For those seeking a safer path, products like Toxin Rid or Detoxify Mega Clean are designed to assist in detoxification without putting your health at such risk. These options are formulated to help eliminate toxins from your system, providing a more balanced and controlled approach compared to relying solely on niacin.

How Does Niacin Trigger THC For Detoxing?

Now many of you must be wondering how niacin works. It causes the system to burn fat cells faster. This causes extra THC to release from inside the cells. So, if you test, you will notice lower amounts of drugs in the pee. The thing with THC is that it is fat-soluble. It stays in the fat cells and is released into the blood after a few days. So, it might take 3 to 30 days to get rid of THC naturally. It finally finds its way into your urine.

If you try to burn fat, it releases THC too. Here is where niacin comes into play. Niacin accelerates the process that makes the THC release faster. Besides, niacin also helps to eliminate excess THC by opening the blood vessels. But there is a study that claims this is false. Niacin does not eliminate the presence of THC or drugs but masks its presence.

Does Niacin Flush Free Work to Pass a Drug Test

As of now, we have reports and studies that show niacin does mask the presence of drugs. However, these are solely based on the evidence we have until now. But there are serious negative effects of using niacin as we saw earlier. Even though an individual overdosed on niacin, the drug results were clean. So, it points out the fact that it does work. You need not overconsume the pill to get a negative drug test. Instead, you can take them in lower amounts to avoid the effects of the pill.

In many places, you can also explore alternatives such as Toxin Rid and Detoxify Mega Clean for detoxification purposes. These products have gained popularity and are legally available in various locations.

And just like niacin, these products are legal when used appropriately. Niacin, Toxin Rid, and Detoxify Mega Clean each offer distinct approaches to detoxification, so it’s essential to consider your options and make informed decisions based on your specific needs and circumstances.

Flush Free Vs Regular Method: Which Is the Best 

If you use regular niacin, you can use the above method. On the other hand, if you wish you can take a lower dosage of aspirin. This will prevent flushing and discomfort. Now you may ask if a niacin flush will help you get a negative drug test. Yes, it will work well. You can get a flush-free form of niacin that is ideal for those who feel discomfort with regular pills.

As far as regular niacin is concerned, it helps to widen the blood vessels. In addition, it is great to lower your cholesterol levels. The only disadvantage of this pill is that it can cause flushing. Honestly, if you are flushing during drug testing, this may cause suspicion.

On the other hand, flush-free niacin is usually in the inositol hexanicotinate forms. This form of niacin does not help with burning fat or lowering cholesterol. Hence, it may not be as effective in decreasing the THC level in urine. Some studies suggest avoiding taking inositol hexanicotinate. This is because it is not effective to transform into nicotinic acid. At the same time, using it can cause damage to the liver.

How Fast Can Niacin Clean Your System?

It can take around 2 to 4 hours for the niacin to exit the system. In addition, niacin metabolites can take a few days to completely leave your body. This is true if there is a high concentration of drugs in your body. So, do testers who know what flushing looks like look for niacin in the body? There is a low chance that testers can predict the niacin use using pills. The thing with this is that B3 is naturally present in our bodies. Tracing them out will be a difficult task.

Niacin is an essential component that is highly used as medication too. Testers cannot probably tell if you used niacin to detox your body. The best part about high levels of niacin concentration is that it will leave your system within 48 hours or 2 days.

How Much Niacin Should I Take to Pass a Drug Test

Experts recommend the daily limit of niacin should be 16 mg/day. You can use it as a nutritional supplement. In addition, you can use it for the treatment of hypercholesterolemia and hyperlipidemia. Regular but low dosage might cause some issues.

Alternatively, taking them in higher doses can cause itching, skin flushing, and more such effects. Many studies indicate people have been using niacin to mask the presence of drugs in their piss. But there is no concrete evidence that taking niacin can change the results of drug tests.

It is often used to treat medical conditions. For instance, 50mg to 3000 mg doses of niacin are used to treat high cholesterol levels. However, you should make sure that the levels do not go over 2000 mg. There are reports of some serious side effects if you overdose on niacin. If you have high levels of cholesterol, then we suggest you use statin drugs first. Then you can try niacin doses that are over 2000 mg.

If you know about pellagra, niacin doses of about 300-1000 mg are taken to treat the deficiency. At the same time, doses of up to 2 grams are used for other conditions like boosting metabolism. Also, they are used for hardening the arteries.

When it comes to flushing out THC, consider taking one 500mg niacin tablet—never exceed 2000 mg daily. Some also explore Toxin Rid and Detoxify Mega Clean for added assistance. Follow recommended dosages for optimal results in reducing THC concentrations.

Toxin Rid Banner

Toxin Rid

  • Three-part detoxification system with pre-rid tablets, liquid detox, and dietary fiber
  • Specifically designed for people with HEAVY toxin exposure
  • Starts working as fast as one hour
  • Rids your blood, urine, and saliva of unwanted drug toxins
  • 100% money-back guarantee
See Deal →
Mega Clean Banner

Mega Clean + PreCleanse Pills

  • Minimizes your toxin levels in one hour, effective for up to five hours with the maximum effect at three hours
See Deal →

Can Lab Tests Detect Niacin for Weed Detox?

The niacin pill is not something you should worry about. It is a legal item and a natural component found in the body. So, you need not worry about that. However, if they find the detox evidence, that could cause suspicion. It is best you try to hide any signs of detoxification. In the case of niacin, flushing can be a sign.

So, how long does flushing last with niacin? After taking the pills your skin would start flushing within 20 to 30 minutes. Though it doesn’t last long. If you can maintain the color and gravity and the creatinine level of your urine then you have a huge chance to pass a drug test with flying colors.

Customer Review

Positive Reviews

Niacin positive review

Looks like the pills helped out this customer beat drug tests.

Niacin another positive review

According to this consumer, niacin pills work for maintaining the creatinine and color of the urine which is a very convincing explanation of how the pills flush out toxins.

Negative Reviews

Niacin negative review

The consumer too describes all the issues niacin has as we discussed in the article. He advises not to buy the product.

Niacin critical review

The pills also didn’t work for this customer.

Reviews from Reddit


Niacin Positive Reddit Review

The Reddit user has seen people pass drug tests after taking a high dose of niacin. This much niacin intake isn’t something we would recommend because it puts your health at risk.

Niacin excited review from Reddit

This Reddit user tried niacin and passed suggesting taking a higher dosage gradually for cleaning a weed drug test.


Niacine negative review from Reddit

Unfortunately, the Reddit user didn’t pass a drug test after using niacin when he tested at home. Thus, he ended up buying a detox drink and sure enough, he passed.

Bottom Line   

We suggest you stick to dilution options if you do not have experience with using niacin. Or you can try other methods for passing the marijuana drug test. You can find numerous products and solutions to help you easily clear the drug test. All are effective and give you guaranteed results. Finally, we would like to end this article by saying there is no 100% guarantee on using any method. There can be a chance that it won’t work as well.

However, if you take niacin for medicinal or health purposes, we advise you not to take one on the testing day. Instead, you can use a reliable dilution method just 2 hours or so before the drug test. At the same time, you can consider drinking tons of water. Drinking a lot of water will make you urinate more. This will release all drugs present in your system. It will also keep you hydrated.

If that does not sound okay to you, try detox pills and products. You don’t have to search for “detox products near me” as they are readily available in the market and work well. You can also find them online and get them delivered.

Try Toxin Rid pills to pass saliva tests, urine, or hair drug tests. Also, consider using Detoxify Mega Clean for a quick and effective solution. You can use powdered synthetic urine too from TestClear. This way you don’t have to think about how long does it last since some of them can last for years.