Parkinson's Medication: Why Timing Matters in Care

Parkinson's medication has to be given at the times it's prescribed, not on the next medicines round. The drugs replace or boost dopamine, and their effect wears off as each dose fades. Parkinson's UK says a delay of as little as 30 minutes can leave some people unable to walk, talk or swallow, which is why these medicines are called time critical.

Why Parkinson's medication is time critical

Parkinson's happens when nerve cells in a part of the brain called the substantia nigra are lost, which reduces dopamine, a chemical that helps control movement. There's no cure, but medicines ease the main symptoms.

Each person's doses are timed to their own day, so one dose takes over before the last wears off. Push a dose back and the gap shows up quickly as stiffness, slowness, tremor or freezing.

NICE guideline NG71 says people with Parkinson's who are admitted to hospital or care homes should have their medicines given at the appropriate times, which in some cases means letting them take their own. It also says dopaminergic medicines should not be withdrawn abruptly or allowed to fail suddenly, because of the risk of acute akinesia (sudden loss of movement) or neuroleptic malignant syndrome. Parkinson's UK's recommendations for hospitals say time-critical medicines must be given within 30 minutes of when they're due.

What happens when a dose is late or missed

On shift, a late dose often looks like a bad day: the person can't get out of the chair, freezes in a doorway or struggles to swallow lunch. Parkinson's UK says late or missed medication can cause stress, anxiety, immobility, severe tremors and, in extreme cases, death.

The knock-on risks are the ones care teams know well:

• Falls, because balance and movement get worse as the dose wears off.
• Choking and chest infections, because swallowing gets harder.
• Distress that's mistaken for behaviour, when it's really someone stuck in an "off" period.
• A serious reaction if medicines stop suddenly. Parkinson's UK describes parkinsonism-hyperpyrexia syndrome (rigidity, fever and reduced consciousness), which can be fatal.

This isn't a rare problem. Parkinson's UK's 2023 report, drawing on the UK Parkinson's Audit 2022, found that 58% of people with Parkinson's admitted to hospital in England didn't get their medication on time, every time. Its Get It On Time campaign aims to make sure everyone in a hospital or care home gets their medication on time, and calls for hospital staff to be trained to give it.

Common types of Parkinson's medication

You don't need to know doses, but it helps to recognise the main groups the NHS describes:

• Levodopa (for example co-careldopa or co-beneldopa) is turned into dopamine in the brain. Over time it can bring "on-off" swings and involuntary, jerky movements called dyskinesias.
• Dopamine agonists act as a substitute for dopamine. They've been linked to compulsive behaviours such as gambling, shopping or increased interest in sex, and occasionally to falling asleep suddenly. Tell the GP or Parkinson's nurse if you notice changes like these.
• MAO-B inhibitors block an enzyme that breaks down dopamine.
• COMT inhibitors stop levodopa being broken down, and are usually added later on.
• Apomorphine is given by injection under the skin, either as a single dose or continuously through a small pump.

Parkinson's UK also lists amantadine and anticholinergics. Doses and changes are for the prescriber: NICE says Parkinson's medicines should only be adjusted by, or after discussion with, a Parkinson's specialist.

Getting doses on time in a care setting

Most late doses happen because the medicines round wasn't built around the person. A few changes help:

• Write exact times on the MAR, such as 07:00 and 10:30, not "morning" and "lunch", and set alarms so the dose is given at that time even between rounds.
• Plan the rota so a trained member of staff is free at every dose time, including handovers, breaks and nights.
• Support self-administration where the person wants it and it's been assessed as safe.
• Record and report late or missed doses as medication incidents, and note the effect on the person.
• Note "on" and "off" times in daily records. They help the Parkinson's nurse fine-tune the timings.
• Check new medicines. NICE warns that some antipsychotic medicines can make Parkinson's worse, so ask the prescriber or pharmacist to check any new prescription.

Staff who give medicines need the basics too: see our medication administration training.

Swallowing problems and nil by mouth

Swallowing often gets harder as Parkinson's progresses, and NICE recommends speech and language therapy for people with swallowing problems. If someone struggles with tablets, don't skip the dose and don't start crushing on your own initiative. The NHS Specialist Pharmacy Service says crushing tablets or opening capsules is often off-label and needs a written direction from the prescriber, recorded on the MAR and in the care plan. Modified-release products must not be crushed. Contact the GP, pharmacist or Parkinson's nurse the same day, and follow your local policy and the person's care plan. For the wider picture, see our dysphagia awareness training.

Being nil by mouth before a procedure doesn't automatically mean stopping Parkinson's medicines. Parkinson's UK says people are usually allowed to keep taking them with a few sips of water. The clinical team will confirm the plan.

When someone goes into hospital

Prepare before the ambulance arrives:

• Send medicines in their original packaging, with at least a day's supply.
• Send an up-to-date list of every medicine, with doses and exact times.
• Include the person's Parkinson's UK medication card or alert card if they have one.
• Tell ward staff that timing matters, and explain how the person changes when they're "off".
• If doses are missed, Parkinson's UK suggests raising it with the senior nurse on duty and the Parkinson's nurse, and asking for it to be reported.

How Parkinson's changes over time

Parkinson's UK estimates around 166,000 people in the UK live with Parkinson's. It describes four broad stages that health professionals often use: early or diagnosis, maintenance (when symptoms are controlled, often with medicines), advanced or complex, and palliative. Some clinicians also use the Hoehn and Yahr scale, published in 1967, which rates movement symptoms in five stages. Parkinson's UK stresses that everyone is different and symptoms progress at different rates.

The NHS lists tremor, slow movement and stiff muscles as the main symptoms, alongside depression, anxiety, balance, smell, sleep and memory problems. In the advanced stage, medicines may work less well or cause side effects that outweigh the benefits, and people may need more help with washing and dressing. Balance problems raise the risk of falls, so see our falls prevention training if that's a concern in your service. NICE says people can be referred to palliative care at any stage of Parkinson's.

How Kasorb can help

Our Parkinson's awareness training is a half-day session, on-site or live online. It covers what Parkinson's is and its causes, types of Parkinson's and parkinsonism, diagnosis, signs and symptoms including non-motor symptoms, medicines, side effects and why timing matters, support strategies and therapies, future treatments and person-centred care. Your trainer has used these skills for real. Tell them about the people you support and they'll focus the session on their needs. It's one flat rate for the day, and you can run two sessions so half the team trains while the rest covers the floor. Certificates are emailed the next day.

FAQs

Why is Parkinson's medication time critical?

Parkinson's medicines replace or boost dopamine, and each dose wears off. If the next one is late, symptoms return quickly. Parkinson's UK says a delay of as little as 30 minutes can leave some people unable to walk, talk or swallow, and missed doses can cause serious harm.

How late is too late for a Parkinson's dose?

Parkinson's UK's recommendations say time-critical medicines must be given within 30 minutes of when they're due. Give each dose at the exact time on the MAR chart, follow the person's care plan and your local policy, and record and report any dose given outside that window.

What should care staff do if a Parkinson's dose is missed?

Don't adjust the medicine yourself. Contact the GP, pharmacist, Parkinson's nurse or NHS 111 for advice on what to do next, then record it and report it as a medication incident. Watch the person closely for stiffness, swallowing problems, falls or distress.

Can Parkinson's tablets be crushed?

Only when the prescriber has directed it in writing. The NHS Specialist Pharmacy Service says crushing or opening capsules is often off-label and modified-release products must not be crushed. If someone can't swallow their tablets, contact the prescriber or pharmacist the same day.

What are the stages of Parkinson's disease?

Parkinson's UK describes four broad stages: early or diagnosis, maintenance, advanced or complex, and palliative. Some clinicians also use the five-stage Hoehn and Yahr scale. Everyone with Parkinson's is different, and symptoms progress at different rates.