| 摘要 |
An effervescent composition, more particularly for effervescent tablets, contains at least one solid crystalline organic acid and at least one carbonate which liberates CO2 on reaction with the organic acid, the acid crystals having a coating which contains calcium carbonate and which adheres to their surface by means of a bonding layer formed by surface-reaction of the calcium carbonate containing coating material with a surface layer of each acid crystal. The effervescent tablets may also contain minerals and/or vitamins or acetylsalicylic acid, the latter being present, optionally, with paracetamol in a two-layer structure. |
