In veterinary prescriptions, what does the abbreviation 'Tab' refer to?

The abbreviation 'Tab' in veterinary prescriptions stands for 'Tablet.' This term specifically refers to a form of medication that is produced in a solid, compressed shape designed to be taken orally. Tablets can contain one or more active ingredients and are formulated to deliver precise dosages, making them a common choice for various treatments in veterinary medicine.

The other options refer to concepts that are not standard abbreviations in veterinary prescriptions. For instance, 'Tabletform medication' is not a concise or recognized term for this context; instead, tablets are simply referred to as 'Tabs.' 'Tablet instructions' would imply guidance on how to administer the tablet, which is not what the abbreviation signifies. Similarly, 'Tabulation of dosages' suggests a systematic listing of dosages rather than a specific type of medication form. Thus, the most direct and accurate interpretation is that 'Tab' signifies a 'Tablet.'