Information Of Nicotine: How Long Does Nicotine Stay In Your System?

You often are told that smoking can cause the lung cancer. Nicotine is the main compound of tobacco, cigars, and cigarettes. This article will show you how harmful it is and how long nicotine stays in your system.


What is nicotine?

Nicotine is an alkaloid which can be found in some plants like tobacco plant. Nicotine can also be synthesized. It is addictive because you are so difficult to quit it when you try it. Tomatoes, peppers, eggplant or potatoes also have a small amount of nicotine. They use nicotine to produce insecticides.

How harmful is nicotine? What are its effects on the body?

If you smoke, nicotine will pass through the lungs membranes and go into the bloodstream. Then, it metabolized into cotinine which is stayed in some organ such as, lungs, liver, urine or blood. Nicotine presents in your saliva as well, so cotinine can be an indicator and a reliable marker. Then nicotine is located in the brain where it connects and activates the cholinergic receptor. Nicotine effects on the brain after 8- 20 seconds of an inhalation. Nicotine will disrupt normal functions of the brain. The number of cholinergic receptors will change if one person smokes regularly. Nicotine will increase the adrenaline in the brain which makes heart rate and blood pressure may go up. Smoking can cause lung cancer and many other diseases. If you suddenly give up smoking, you will have some symptoms of a withdrawal situation such as anxiety, delusion, irritability or sleeplessness. A study showed that smoking addiction is the hardest one to quit. Besides, nicotine can boost mood and promote the memory as well.

How long does nicotine stay in your system?

In blood

Nicotine can last from one to three days in your blood. However, this substance can be tested up to ten days. Nicotine blood test can detect the presence of nicotine and the amount of nicotine in the bloodstream. Sometimes, the result has the false positive.

In urine

You wonder how long does nicotine stay in your urine; the answer depends on what type of cigarettes you smoked. If you smoke frequently, nicotine will last in your urine about one week to three weeks. If you are not smoking frequently, cotinine can stay in your urine about four days. As nicotine blood test, nicotine urine test helps you to know the presence of nicotine and how much nicotine has in your urine. The result can be different at each lab so you should discuss with your doctor.

In saliva

In saliva, cotinine can be detected more than ten hours. In some cases, we can find the presence of cotinine up to 2 to 4 days.  Nicotine saliva test is used more than other tests because we don’t need to take blood or urine specimens. Moreover, we can know exactly the amount of tobacco which was smoked.

How long nicotine stays in your system is different in each person. We have three types of level smoking. First, if people smoke once per week, they are called light smoking. In this case, nicotine will last in your system about one to three days. Nicotine can stay longer if you are moderate smoking who smoke more than one to three times per week. Maybe you don’t believe that nicotine can be found in your body up to a year if you smoke every day.

Some factors can influent the time nicotine stay in your system. Medications can increase or slow the metabolism process which will be fast if you are taking antibiotics or Phenobarbital.

In contrast, antifungal or high blood medication can decrease the process. If you are older, your liver doesn’t work well so the nicotine elimination can be slower. Women have the faster metabolism than men. If she is pregnant or taking estrogen, the metabolism will be quicker.

How to quit smoking

The first important thing to quit smoking is that you need to give up smoking. You can think about your life without smoking. For instance, you will save more money and health if you don’t smoke. You should prepare to suffer the withdrawal symptoms such as anxiety, depression, restless and problems concentrating. You need to pass through it. A study in America shows that only five percent of smokers can quit.

Next, you need to have your plan to quit smoking. You should opt a date in about next two weeks. It helps you to have time to prepare the things and mental you need. Having some methods for you like quitting cold turkey or reducing your smoke. If you choose the quitting cold turkey method which means you need to stop smoking right away completely.

Another way is smoking less and less until you don’t smoke anymore. If you choose the reducing, you should have specified how much you will reduce. For instance, your slogan is “I will reduce my smoking by one cigarette every three days”. You need to follow it seriously and don’t break the rules.

You can also meet doctor or counseling for help. When you are quitting smoking, you can have cravings. You should prepare for it with the low-calorie snacks. Before the quitting period, you should clean your whole house to get rid of cigarette smells. Your family and friends can be an excellent help source. They can encourage and remind you when you want to give up the trace. They also will not offer you a cigarette anymore.

You should control your stress. Because many people desire to smoke when they have stress in work or life. Instead of smoking, you can give yourself a cup of coffee or share your problems with your friends to get pieces of advice. Take Bupropion to reduce the symptoms of nicotine withdrawal. This medication will increase your success by 69 percent.  The dosage is one or two 150 mg tablet each day. You can have some side effects like dry mouth, irritability, tiredness or dry mouth.

Another medication you can consider is Chantix which retrains nicotine receptors in the brain. This mechanism makes smoking less pleasurable and reduces withdrawal symptoms as well. You will meet some side effect include headaches, vomiting, nausea or trouble sleeping.

One more tip is trying nicotine replacement therapy (NRT) which includes patches, lozenges, gums, inhalers, nasal sprays, or sublingual tablets. They have and deliver nicotine into your system which helps to reduce withdrawal symptoms and cravings. Nightmares, insomnia, mouth soreness and irritation can be side effects.


This article helps you to understand more ‘How long does nicotine stay in your system?’ and give you some amazing tips to quit smoking which is so bad for your health. Hope you will quit smoke successful.

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