| Line 3: |
Line 3: |
| | ==Drug administration== | | ==Drug administration== |
| | | | |
| − | The parenteral (e.g. intravenous, intramuscular, subcutaneous, intra-articular) | + | The parenteral (''e.g.'' intravenous, intramuscular, subcutaneous, intra-articular) |
| | or oral routes are used most commonly to administer drugs to donkeys. | | or oral routes are used most commonly to administer drugs to donkeys. |
| | The choice of administration route depends on a number of factors, | | The choice of administration route depends on a number of factors, |
| Line 13: |
Line 13: |
| | drugs by this route, e.g. atropine has systemic effects following ophthalmic | | drugs by this route, e.g. atropine has systemic effects following ophthalmic |
| | administration. | | administration. |
| | + | |
| | + | <center>'''Factors to consider when selecting an administration route.''' |
| | + | |
| | + | {| cellpadding="10" cellspacing="0" border="1" |
| | + | |'''intravenous (i.v.)''' |
| | + | | '''intramuscular (i.m.)/ subcutaneous (s.c.)''' |
| | + | | '''''per os'', oral (p.o.)''' |
| | + | |- |
| | + | |Rapidly produces high drug concentrations in the circulation |
| | + | |Gives better and more consistent absorption than s.c. |
| | + | |Rate and extent of absorption can be highly variable |
| | + | |- |
| | + | |Can titrate to effect(''e.g.'' anaesthetics) |
| | + | |No more than 30ml per injection site |
| | + | |Bioavailability of drugs can be substantially decreased |
| | + | |- |
| | + | |Increased chance of adverse reactions |
| | + | |Donkeys less sensitive to local side effects (irritation, infection) than horses |
| | + | |Absorption can be delayed or biphasic due to adsorption onto feed |
| | + | |- |
| | + | |Bioavailability 100% |
| | + | |. |
| | + | |Usually safe |
| | + | |- |
| | + | } |
| | + | </center> |
| | + | |
| | | | |
| | ==References== | | ==References== |