PRN medication setup

A PRN (pro re nata) medication is given as needed, not on a fixed schedule. To make a medication PRN:

1. Open the medication.

2. Tick PRN (is_prn = 1).

3. PRN reason — short description of why it's prescribed (e.g. "Pain relief", "Anxiety management").

4. Symptom indicators — comma-separated list of things to check for before giving (e.g. "Pain >5/10, refusal to mobilise, swelling").

5. Min interval between doses (minutes) — prn_min_interval_minutes. Enforced as a hard block.

6. Max in 24 hours — prn_max_dose_24h. Enforced as a hard block.

7. Save.

What changes when a medication is PRN

• It disappears from the regular timeline (no scheduled doses).

• It appears under the PRN page for on-demand recording.

• Dose limits are enforced at every recording attempt.

• Effectiveness can be tracked (PRN effectiveness).

Tip — Keep symptom indicators short and observable — staff need to be able to confirm them at someone's bedside, not after a clinical assessment.