If these pain killers are given through IV which means it would be mixed with glucose, this breaks your fast. Also, if they insert objects in your throats with lubricants, this also breaks your fast.

dear sheik i need advice i have a scanthis sunday that has been requested by my gp urgently but idont know if it will break my fast its basically putting a camera through my throat to my stomach but they may give me pain killers through the vein and also tell me to gaggle Anthestic in the throat does this break my fast if yes then i will move it if no is it ok for me to have pain killers by IV.