Twenty milligrams is a tablet, not a taper philosophy
UK packs commonly score 20 mg and 5 mg. The parent lock on this site is 20 mg - the burst tablet people actually swallow for asthma flares, contact dermatitis, and many medical short courses.
BNF and the prednisolone SmPC allow abrupt stop after courses of three weeks or less in people whose disease is unlikely to relapse and who are not in the higher-risk groups. Abrupt withdrawal of up to 40 mg daily for three weeks is unlikely to cause clinically relevant HPA suppression in most patients. Twenty milligrams sits inside that sentence.
The physiology sheet is the prednisolone frame. The axis-after-burst zoom is HPA after a 20 mg burst.
Print the exit the day the 20 mg starts. Stop-on-last-tablet or dated steps. Vague 'tail off' is how families argue at 22:00 and how people restart last winter's strip because they are tired.
When the 20 mg pack can end on the last tablet
Five to seven days at 20 mg for a straightforward flare, no evening split doses, no long steroid course in the past year, disease settling: many respiratory and dermatology plans stop on the last 20 mg. That is a clinician sentence, not a forum dare.
Stopping on day three because breathing 'felt fine' is not the same rule. Relapse of the original disease is the usual penalty, not adrenal crisis.

Diabetes and a psychiatric history still need a follow-up call even when no taper is written. Glucose and mood can move on a short 20 mg burst.
| Course shape at 20 mg | Typical exit | Watch |
|---|---|---|
| 5-7 days, first burst this year | Often stop on last tablet | Disease relapse |
| ≤3 weeks, not in BNF risk groups | Often stop if disease quiet | Written plan |
| Repeat 20 mg bursts | Taper more often needed | HPA plus relapse |
20 mg can move glucose and sleep even on a short pack
A five-day 20 mg burst still raises glucose in people with diabetes and in some who have never been labelled diabetic. That is not a taper question. It is a monitoring question while the pack is running.
Night wakefulness and a short fuse show up on 20 mg. Families call it 'the steroid mood'. It usually fades after the last tablet. A psychiatric history deserves a check-in even when no taper is written.
Do not drop 20 mg to 10 mg at midnight because you cannot sleep. Evening dose cuts are how people invent a taper that the burst never needed - or skip a day that the asthma still needed.
If glucose climbs, call the service that owns the diabetes. Do not stretch leftover 20 mg into week two as a 'taper' because you fear rebound hyperglycaemia. That is a new course.
Write peak home glucose next to the 20 mg dates. That pair explains a later HbA1c bump better than memory.
Who else in the house thinks they can edit 20 mg
Well-meaning partners hide 20 mg because 'steroids are poison'. That is an unplanned stop. Show them the written exit.
Parents of adult patients still throw packs out on the good day. The good day is not the stop date unless the page says so.
A neighbour's PMR 1 mg monthly sheet is not your five-day 20 mg burst. Keep their paper off your fridge.
If two people in the house use prednisolone, label the 20 mg with the name and the indication. Borrowing is how tapers cross.
Children should not find 20 mg in a handbag. Child-resistant storage is part of the burst, not extra.
Locum GPs need the same page the family sees. Text photos die. Paper on the blister lives.
If someone already hid the 20 mg, say how many days were missed before you invent a catch-up.
The one page that prevents a 20 mg argument at 22:00
Print: start date, 20 mg daily, stop-on-last-tablet versus step dates, and a phone number if wheeze or joint pain returns.
Partners who hide the 20 mg because 'steroids are bad' create unplanned tapers. Show them the written exit.
Locum pharmacists need the same page so they do not refuse a 5 mg supply mid-step.
If the page says stop-cold and you feel awful two days later, that is a call, not a restart of last winter's 20 mg.
Keep the page with the blister. A photo in the phone dies when the phone dies at the counter.
When the 20 mg box empties mid-taper
Scottish community pharmacies can often supply 5 mg the same day if the script allows. Jumping from 20 mg to nothing because 5 mg is out of stock is a logistics failure, not a medical plan.
Splitting 20 mg tablets to invent 10 mg only works if they are scored and the clinician said so. Uneven shards are not a 10 mg dose.
Do not borrow a partner's 20 mg. Different indications have different exits.
- Write today's milligram on the calendar, not 'a bit less'.
- Bring the sheet to the locum pharmacist.
- Liquid prednisolone exists for micro-steps below 5 mg when 1 mg tablets are missing.
A worked 20 mg step-down - example only
Example, not your chart: 20 mg daily for two weeks, disease quiet, clinician wants a taper. Week three: 15 mg. Week four: 10 mg. Then 5 mg, then stop or 2.5 mg steps if the person is frail or has been on steroids this year.
Rheumatology PMR tails below 10 mg often move 1 mg every few weeks. That is a different disease clock from an asthma 20 mg burst. Do not copy a neighbour's PMR sheet onto a five-day chest pack.
If original symptoms return at a rung, hold and call. Automatic return to 40 mg because you felt tired is how people lose the plot.
Treat the indication. Date the blister.
Common first drops when a taper is required.
Slower. Axis recovery, not heroics.
Who needs steps even from 20 mg
BNF asks clinicians to consider gradual withdrawal if the person had more than 40 mg prednisolone daily for more than a week, more than three weeks of treatment, repeated courses, repeated evening doses, a short course within a year of stopping long-term therapy, or other adrenal-suppression risk.
A 20 mg tablet taken for five weeks is already past the three-week line. A 20 mg tablet taken for five days on top of last month's 40 mg fortnight sits in the 'recent long course' bucket.
Once daily dose reaches a physiological band (SmPC language around 7.5 mg; NICE replacement talk is lower, 3-5 mg), further drops go slower so the axis can wake.
Rebound disease versus steroid withdrawal
Withdrawal leans toward non-specific ache, fatigue, and nausea a few days after a drop. Flare leans toward the original pattern: wheeze, synovitis, spreading rash.
Both can coexist if someone tapers through still-active disease. The prescriber teases them apart. ESR and CRP help in some indications and help not at all in others.
Never restart a leftover 20 mg strip from last winter because you are tired on a Tuesday. That is a new course and needs a new decision.
When a 20 mg habit is no longer a burst
Repeated 20 mg packs for exacerbations add up toward bone and gastric risk even if each pack was 'only a week'. Ask for a steroid-exposure total at the asthma or COPD review.
A PPI is not automatic for every five-day 20 mg. It is a conversation after ulcers, anticoagulants, or a pack that grew into weeks.
Vitamin D and bone plans belong to long tails, not to a single naive 20 mg burst. Mixing those leaflets frightens people into tapering a five-day pack that should have stopped cold.
If the 20 mg course crossed three weeks, the exit is steps plus a bone-glucose look, not a Facebook 1 mg PMR sheet.
Bring the number of 20 mg packs this year to the next respiratory slot. That number decides whether this is still 'a burst'.
Date the 20 mg, then date the drop
If the plan is stop-on-last-tablet, write that. If the plan is steps, write milligrams and dates. Vague 'tail off' is how rebound and withdrawal get confused.
Confirm with the prescriber. Axis rules after a burst sit next door. This site does not hold your chart.
Sources
- BNF / NICE corticosteroids - when to withdraw gradually versus stop after ≤3 weeks.
- Prednisolone SmPC (emc) - abrupt withdrawal up to 40 mg daily for 3 weeks; slower below physiological dose.
Checked against the current label and reviewed by Dr. Mira Okonkwo. See Capture → Layer → Peer-blur → Publish.