No worries The locum will not have AB's but he will be able to give you a script to fill in the morning. Not sure which part of Melbourne you are in, but there are a few late night chemists around if you need to fill a script tonight. I think the latest ones close at midnight. The locum may be able to give IM AB's (an injection), but if the patient is sick enough to require IM the locum will probably suggest you head to A&E instead. Is the patient your DS??

ETA, Just saw it's for your DS2 - he's very young to be requiring a locum so late at night! I mean that if he is sick enough that you need a doctor tonight and can't wait until morning, perhaps he does need to go to A&E? Is he ok?