Paracetamol for renal colic
If paracetamol is appropriate (see Choosing an analgesic regimen for renal colic), use:
1 paracetamol 1 g intravenously, as a single dose renal colic paracetamol
OR
1 paracetamol immediate-release 1 g orally, as a single dose paracetamol
OR
1 paracetamol modified-release 1.33 g orally, as a single dose. paracetamol
If repeat doses of paracetamol are required, see here for oral dose regimens, or here for parenteral regimens.