If we take just the nicotine into consideration, then with the average cigarette containing around 10 mg, we can calculate that theres around 4 cigarettes-worth of the chemical in a Geek Bar that carries 40 mg

Its called prophylactic (preventive) intravenous administration of caffeine, and its currently being recommended for habitual coffee drinkers who are undergoing surgery.151 A New View on Caffeine Withdrawal Although the phenomenon of caffeine withdrawal has been described previously, the present report documents that the incidence of caffeine withdrawal is higher (100 percent of subjects), the daily dose level at which withdrawal occurs is lower (roughly equivalent to the amount of caffeine in a single cup of strong brewed coffee or three cans of caffeinated soft drink), and the range of symptoms experienced is broader (including headache, fatigue and other dysphoric mood changes, muscle pain/stiffness, flu-like feelings, nausea/vomiting and craving for caffeine) than heretofore recognized. Source: R
PRO TIPS When cleaning leather, spray the product onto a cloth, never directly onto the leather surface
It typically holds around 20 cigarettes
5 Actionable Steps to Quit Smoking 1