What Are the Risks of Nicotine Patches?

Nicotine patches are common smoking cessation products in daily life. Many smokers report that after using nicotine patches, their cravings for cigarettes after meals have completely disappeared compared to the first three days. Nicotine patches are indeed very helpful! But do nicotine patches have side effects? What are the dangers of nicotine patches? Here’s a summary for everyone.
 
Dangers of nicotine patches

Currently, the effectiveness of using medication for smoking cessation treatment is highly uncertain, and the side effects are varied. What are the dangers of nicotine patches? Can using too many nicotine patches be fatal? Here are some examples:

1. Dr. Lerman and others studied certain biomarkers representing nicotine clearance rate (NMR) to verify whether they could be used to predict smokers' responses to nicotine patches or varenicline treatment. Among them, 418 people received nicotine patches and placebo pills, 420 received varenicline and placebo patches, and 408 received placebo pills and placebo patches, while participants also received behavioral counseling, followed by blood sample collection for analysis.

The results showed that normal metabolizers of nicotine had better outcomes with oral nicotine replacement than those using nicotine patches. At the same time, researchers found that slow metabolizers of nicotine experienced severe side effects from oral nicotine replacement medications.

2. There is a movie called "Thank You for Smoking," where the protagonist is a spokesperson for tobacco. Due to the countless deaths caused by smoking, he faced public outrage. One day, he was put into a small van covered in nicotine patches and displayed on the thigh of a Lincoln statue. Later, a doctor told him that if he were a non-smoker, such a high concentration of nicotine would definitely be fatal, but fortunately, he had built up a tolerance. Thus, he began to boast that nicotine patches could kill people, while the doctor said smoking saves lives...

Assuming he is 180 cm tall and weighs 80 kg, his body surface area is calculated to be 2 m^2. The common 21 mg/24 h slow-release nicotine patches on the US market are about 18 cm^2 in size, which means he could theoretically apply 1111 patches; excluding the head and private areas, and other spots where patches cannot be applied, let’s say he could apply 700 patches.

If we consider a constant release rate, each patch releases 0.875 mg per hour, so 700 patches would release a total of 612.5 mg per hour. For an average person, not to mention dying, even dying several times would be enough... The theory is one thing, but looking at the movie stills, the patches in the image are clearly round and applied very sparsely. Roughly estimating, he probably only applied less than 50 patches. Assuming 50 patches, the nicotine released per hour would be about 43.75 mg. The half-life of nicotine in the blood is about 2 hours, which means a non-smoker would likely be doomed, while a smoker might tolerate some nicotine, but at such a high concentration, they would probably be struggling on the brink of death.