The author discusses the remedy Cina maritima and suggests that it has a relationship with asthma. This concept is derived from two rubrics in Kent's Repertory where Cina is shown in bold type - "cough" and "asthmatic breathing." The author then compares aspects of Cina's drug picture with symptoms which might be seen in asthma. He then compares Cina with other remedies indicated in asthma such as Ipecacuanha, Arsenicum album and Nux xomica and discusses its complementary remedies which include Sulphur, Silicea, Calcarea carbonica, Sulphur iodatum and Lycopodium clavatum. He finishes with two case reports where Cina has been successfully prescribed, either on its own or with a complementary remedy.