Besides being terribly addictive, are nicotine lozenges bad for the consumer in any way?

Adverse effects: Increased blood pressure tachycardia dizziness insomnia irritability anorexia dyspepsia hiccups increased salivation indigestion nausea vomiting cough.

Safer than you think: You're right, nicotine is terribly addictive, especially in cigarettes. If you're not a smoker, you should avoid nicotine lozenges, but for smokers, almost all the risk is in the smoke, not the nicotine. Too much nicotine causes nausea, not much more. If you find the lozenges help you avoid cigarettes, using them is much better for you than smoking!