Article describe brain damage from nicotine! (in other literature its described as painful and unreliable)
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5835582/
According to article above the lethal dose (LD50) for nicotine in humans is 1 mg/kg, doses in the cases presented in the article exceeded the lethal dose:
"We had two patients, a 27-year-old male who ingested about 23 mg/kg of nicotine and a 17-year-old female who ingested about 30 mg/kg of nicotine."
"They were ultimately discharged with a cerebral performance category of 2 and 4, respectively."
CPC 1 - A return to normal cerebral function and normal living
CPC 2 - Cerebral disability but sufficient function for independent activities of daily living
CPC 3 - Severe disability, limited cognition, inability to carry out independent existence
CPC 4 - Coma
CPC 5 - Brain death
https://medical-dictionary.thefreedictionary.com/cerebral+performance+category+scale
Second case:
"Although spontaneous eye opening was noted, neither awareness nor intentional movement was noted. On the 32nd day of admission, she was transferred to a rehabilitation facility with a CPC of 4."
Conclusion
I write this post to prevent anyone from end up with brain damage. I strongly advice against nicotine od. Use only reliable ctb method and make sure not to be found too early!!