Effervescent tablets are solid dosage forms that dissolve in water to release carbon dioxide, creating a fizzy solution. They typically contain active ingredients, such as vitamins or medications, along with acids and carbonates that react when mixed with liquid. This reaction helps to enhance the absorption of the active ingredients in the body. These tablets are popular for their ease of use and pleasant taste, making them a convenient option for those who have difficulty swallowing pills. Common examples include vitamin C tablets and antacid formulations, which provide quick relief or nutritional benefits when consumed as a drink.