Eksempelvis er følgende symptomer set hos patienter, der prøvede at holde op med at ryge: dysfori og nedtrykt sindstilstand; søvnløshed, irritabilitet, frustration eller vrede; angst; koncentrationsbesvær; rastløshed; nedsat hjerterytme; øget appetit eller vægtøgning.
For example, dysphoric or depressed mood; insomnia, irritability, frustration or anger; anxiety; difficulty concentrating; restlessness; decreased heart rate; increased appetite or weight gain have been reported in patients attempting to stop smoking.