Aspects of the present invention are directed to a nicotine lozenge for oral administration comprising: a nicotine active at least one high viscosity, water soluble, synthetic or semi-synthetic, non-ionic polymer and at least one low viscosity, water soluble, synthetic or semi-synthetic, non-ionic polymer. Lozenges of the present invention are more stable and less expensive than traditional lozenges.本發明是有關一個供口腔投予之菸鹼菱形錠,其包含:一種菸鹼活性成分;至少一種高黏度、水溶性、非離子、合成或半合成聚合物;及至少一種低黏度、水溶性、非離子、合成或半合成聚合物。本發明菱形錠較傳統菱形錠更安定且較不昂貴的。