What a medication reconciliation is

When someone moves between care settings — from home to hospital, from one ward to another, or from hospital back home — there is a real risk that the list of medicines a person is actually taking gets out of sync with what is written down. A medication reconciliation is the structured process of comparing every medicine a person is currently using against every medicine that is newly ordered, so that duplications, omissions, conflicting instructions, or leftover medicines from a previous stage of care are caught and resolved before they cause harm.

This site explains dosing concepts in general, educational terms. It does not publish actual doses for any medicine, because a real dosing figure is set individually by a prescriber based on the specific person and situation. Nothing here replaces advice from a doctor, pharmacist, or other qualified professional, and any concern about your own medicines should go to them directly.

What the term means

In plain language, a medication reconciliation is a checklist exercise: someone — usually a clinician or pharmacist — sits down with two lists, the medicines a person says they are actually taking and the medicines that appear in the current medical record, and works through them line by line until the two match, with any differences explained rather than ignored.

The everyday comparison is a bank statement reconciliation, where someone checks their own record of spending against the statement the bank sends, looking for anything unexplained. The comparison holds up reasonably well: in both cases the goal is to explain every discrepancy, not just to notice them. Where it breaks down is that a mismatched bank entry usually just needs a correction; a mismatched medicine can mean someone has, without anyone intending it, ended up taking two versions of the same drug, or none at all of something they needed.

Why this concept exists

Medicines lists rarely stay accurate on their own. A person may be prescribed something by one doctor, stop it on the advice of another, add an over-the-counter product for a symptom, and never mention any of this unless specifically asked. Each transition — admission to hospital, transfer between departments, discharge home, a change of pharmacy — is a point where the written record and the real-world list can silently diverge.

Without a deliberate reconciliation step, several things commonly go wrong. A medicine a person was already taking at home gets left off a hospital admission order, so it is simply missed for days. A hospital-started medicine gets carried home even though it was only ever meant to bridge a short period. Two products that are actually the same active ingredient, sold under different names, end up on the list twice, effectively doubling exposure without anyone realizing it. None of these errors requires anyone to be careless; they happen because information about medicines passes through many hands and many systems, and without a checkpoint, small gaps accumulate. Reconciliation is that checkpoint.

How it works in general terms

• A clinician or pharmacist compiles the best possible medication history: what the person reports taking, cross-checked where possible against pharmacy records, prior prescriptions, or the medicines themselves brought in from home.
• This list is compared line by line against the medicines currently ordered in the person’s chart or new prescription.
• Any difference is treated as either an intentional change (documented with a reason) or an unintentional discrepancy that needs resolving.
• Discrepancies are resolved by the prescriber, who decides whether to continue, stop, or adjust each medicine — reconciliation itself does not set or change any figure, it only surfaces where a decision is needed.
• The process is repeated at each transition point in care, because a list reconciled once can drift out of date again at the very next handover.
• What varies from one reconciliation to the next is not a number but the completeness of the information available — how reliable the person’s own report is, how accessible their prior records are, and how many prescribers have been involved.

What it does not mean

• It is not the same as a medication review, which looks at whether each medicine is still clinically appropriate; reconciliation only checks that the list is accurate and complete, though the two often happen close together.
• It does not mean a pharmacist is checking whether a dose is correct in the sense of recalculating it; that is a separate clinical judgment made by the prescriber, informed by the accurate list reconciliation produces.
• It is not a one-time event that, once done, guarantees the list stays correct — every new transition is a fresh opportunity for the list and reality to diverge again.
• A discrepancy found during reconciliation is not automatically an error by anyone; many are intentional changes that simply weren’t yet documented, and the process exists precisely to tell the two apart.

Why the actual number is individual

• Body size and composition affect how a medicine is processed, which is one reason the same product can be ordered differently for different people.
• Organ function, particularly of the kidneys and liver, changes how quickly a medicine is cleared from the body.
• Age affects both how medicines are processed and how many other medicines a person is typically taking at once.
• Other medicines and conditions can interact with a given drug, which is exactly the kind of interaction a reconciliation is designed to surface.
• The reason the medicine is being used shapes what a prescriber considers appropriate for that person at that time.
• Because all of these factors are personal, this site does not publish dosing figures for any medicine; only a prescriber, working from someone’s actual record, can set one.

Where to get an answer about your own case

• Ask the prescriber who ordered or changed the medicine — they are the one who can explain why a figure was set or changed.
• Ask a pharmacist, who can also check the list against what you are actually taking and flag anything unclear.
• Read the medicine’s own patient information leaflet, which contains information specific to that product.
• Bring a complete, current list of everything you take — prescription medicines, over-the-counter products, and supplements — to any appointment or handover, since this is exactly the information a reconciliation depends on.
• Never start, stop, change, or self-correct a dose without professional advice, and never respond to a missed dose by taking extra to make up for it.
• If you suspect an error or overdose, contact a pharmacist, the prescriber, or your local poison-control or emergency number rather than relying on a rule of thumb.
• This site provides general, educational information about dosing concepts only; it does not publish actual doses and is not a substitute for professional medical advice.

Frequently asked questions

Is a medication reconciliation the same as a doctor checking my dose is right? No. Reconciliation confirms the list of medicines is accurate and complete; deciding whether a specific dose is appropriate is a separate clinical decision made by the prescriber.

Who actually does the reconciliation? It is typically carried out by a nurse, doctor, or pharmacist at each point of transition in care, though the exact role varies by setting.

What should I do if I notice my hospital medicine list is missing something I take at home? Tell the clinical team immediately so they can update the record; do not simply resume taking it yourself without confirming it should still be there.

Can I ask what dose was decided during a reconciliation? Yes, but the figure itself will always come from your prescriber or pharmacist, since it depends on your individual situation; this site does not publish dosing numbers for any medicine.

What if I’ve missed a dose because of a mix-up found during reconciliation? Do not take extra to make up for it. Contact the prescriber or a pharmacist for guidance specific to that medicine and situation.