Lobelia: This herb has been promoted to help people fight the effects of nicotine withdrawal and is found in many anti-smoking products.
Ginger is a wonderful herb for digestive problems. This is important because quitting smokers sometimes experience stomach problems such as indigestion, cramps and constipation. The main benefit of ginger for smokers however is its anti-emetic properties. This means it relieves the nausea some smokers feel as a withdrawal symptom.(source : EzineArticles)
St. John’s wort: One of the best known herbs for promoting a positive mental attitude–something people often need help with during the early phases of becoming a non-smoker.
Korean ginseng: Is one of the most popular herbs in the world for stimulating energy and helping the body to deal with stress. This property enables ginseng to help alleviate the fatigue and anxiety related to quitting smoking. Ginseng is known to help reestablish balance in the body’s systems, which can be helpful to smokers as their bodies adjust to the absence of nicotine.(Source : care2)
Peppermint: Has a relaxing effect on the muscles of the digestive system, combats flatulence, and stimulates the flow of bile and other digestive juices. The volatile oil in peppermint acts as a mild anesthetic to the stomach wall, which helps alleviate feelings of nausea. Where headaches are associated with digestion, peppermint may help. Peppermint also eases anxiety and tension.