My sister believes there is a pill that

Don't go shopping for a mood pill — the levers that actually move mood and agitation are triggers, routine and food, and the medicine question belongs at the geriatric clinic as a written request for a full medication review.

1) What you tried vs. what tends to work better

Tonight or today — three jobs, about 20 minutes total

1. Log (10 min). Three columns from what you already noticed today. No new system needed.
2. Fix one predictable trigger (5 min). The hour before she gets upset: earlier food, earlier shower, a walk, or daylight. Cut evening caffeine. Keep the evening in the same order every day.
3. Kitchen (5 min). Keep her usual food and drink arriving on a visible schedule — people with dementia eat and drink less without saying so, and dehydration shows up as confusion and agitation. Small, familiar, liked portions, eaten at the same table time as the family. Offer sips through the day, not only at meals.

Scripts you can screenshot

• Not "calm down" → "I'm here, you're safe, nothing is wrong." Then change the subject to something she used to love.
• Repeating the same question → don't correct her. Answer once, calmly, and write it where she can see it (a big clock on the wall). "You asked at four. It's four now. I'm not going anywhere."
• She wants to go "home" → don't argue. "You're safe. This is home now, and I'm here."
• She shadows you → let her, and narrate: "I'm doing the laundry, two minutes."
• Believing something that isn't there → don't debate it. Reassure, then redirect.
• Asking her to do something → offer two choices instead of giving an instruction.
• If she's aggressive: stay calm, don't confront, and leave the room for a few minutes. That's allowed.

Protect the school week (Thursday). Ask one person for one specific block — *"Thursday 6–8pm, sit with her while I do the school run"* — plus one short break you actually take. A depleted caregiver is the part of this plan most likely to fail; build the relief in before Thursday, not after.

2) Avoid list

• No medicine that wasn't prescribed to her — no leftovers, no borrowed, nothing bought online. Supplements, herbs and vitamins count too: put them in the same bag as the prescription boxes.
• Don't start, stop, halve, re-time or double any of her current medicines on your own. Stopping can be as dangerous as continuing. Write the question down for the clinic instead.
• Don't sedate her at home to settle her. In older adults, drowsiness and confusion are the common side effects, and falls come with them; medicines of this kind are among the common reasons older adults end up in hospital. Where they are appropriate at all, it's a specialist decision, usually short-term, and only after triggers and medical causes have been looked at.
• Don't buy prescription medicine from an online seller, and no "calming" powders of unknown content.
• Don't argue, correct or restrain to win a point.
• Don't assume a new change is just dementia or just her age.

3) Decision tree — when to stop DIY and get help

If any of these is true, call your local emergency number now, or go to the nearest emergency department. Tell me your country and city and I'll point you at the right door next turn.

• New muddle over hours or days — doesn't know where she is, drifting in and out, or suddenly much more agitated or drowsy than yesterday. In an older adult this is often infection, dehydration or a medicine, and it can be serious *without a fever*.
• Hard to wake, or won't wake. Gasping or breathing oddly.
• A fall — any fall, and especially a knock to the head, or if she takes a blood thinner.
• One side weak, face dropped, speech gone, sudden vision change.
• New breathlessness at rest, or chest discomfort of any kind — in this age group it can arrive as breathlessness only.
• Barely urinating, or refusing fluids for a day, especially with confusion.
• Severe new abdominal pain, vomiting blood, black stool.
• She says she wants to die, or that she has a plan — stay with her, do not leave her alone.
• A caregiver being hurt — leaving the room is fine; a repeat pattern is not something to manage alone.

Otherwise: the geriatric clinic, this week. There's a one-page clinic sheet to print or screenshot — baseline, log columns, return-now list, and the questions above: clinic-sheet-mood-agitation-6b965b8a.pdf

Bring:

• The behaviour log — 1–2 weeks is what makes triggers show up.
• Every medicine in its own container, including anything from another doctor, anything bought without a prescription, and anything started or stopped recently — with dates.
• Her baseline: what she was like a year ago, what she can still do (walk, eat, toilet), hearing aids and glasses in the bag.
• Eating, drinking and urine over the last day or two; her sleep pattern.
• Who is at home tonight, and whether she can manage alone if sent home.

Ask the clinician, out loud:

• "Could any medicine she already takes be causing this agitation?"
• "Can the whole list be reviewed — is anything duplicated, or anything that could be simplified or stopped?"
• "What exactly should bring us back tonight?"
• "What must we not do at home?"
• Is a hearing/vision check, pain check, and carer support or respite needed? New confusion is very often pain, infection, dehydration, sleep loss, constipation or untreated low mood.

What success looks like in 24 hours — not a cure, just a better night:

• The log has time + trigger + what worked filled in for three days.
• One trigger became a fixed routine, and she had one thing she enjoys today (music, a walk, a familiar task).
• Nothing added, stopped or changed in her medicines without the clinic.
• Your own break happened, and the Thursday block is confirmed with a name on it.

If nothing improves in a week, that is not "keep trying" — that is a reason to go back to the clinic.

One question that changes the urgency: is this agitation sudden over days, or long-standing and roughly the same week to week?

Two quotes above are from the NHS page "Coping with dementia behaviour changes" (UK public health service), checked 8 October 2026. If you're in another country, the same questions go to your local dementia or carers' service.

And the boundary: I don't diagnose, and nothing here starts, stops or changes one of her medicines — that decision belongs to the clinician who can see her, her full list and her examination.