Prexum and Prexum Plus are both prescription medicines used in blood-pressure management, but they are not interchangeable products. The central difference is the number of active ingredients: Prexum is a perindopril product, while Prexum Plus combines perindopril with the diuretic indapamide.
That extra ingredient changes how the combination works, what needs to be monitored, and which patients may be considered for it. The right product depends on the person’s blood pressure, kidney function, electrolyte status, other medicines and the prescriber’s treatment plan.
At a glance
| Point | Prexum | Prexum Plus |
|---|---|---|
| Active ingredients | Perindopril | Perindopril plus indapamide |
| How it lowers blood pressure | Primarily through ACE inhibition and reduced angiotensin II activity | Combines ACE inhibition with the additional antihypertensive/diuretic action of indapamide |
| Number of medicines in one tablet | One active blood-pressure medicine | Two active blood-pressure medicines |
| Monitoring focus | Blood pressure, kidney function and potassium are commonly relevant | The same considerations plus sodium, potassium and fluid/electrolyte balance are especially important |
| Interchangeability | Should be taken at the prescribed strength | Not a direct one-for-one substitute for Prexum |
| Typical reason for choosing it | When perindopril alone fits the treatment plan | When a clinician wants a fixed ACE-inhibitor/diuretic combination |
Prexum
Prexum is a brand of perindopril, an angiotensin-converting enzyme (ACE) inhibitor. ACE inhibitors reduce formation of angiotensin II, helping blood vessels relax and lowering blood pressure. Product strengths and salt forms can differ by market, so the pack and current patient leaflet matter.
Prexum Plus
Prexum Plus is a fixed-dose combination of perindopril and indapamide. Indapamide is a diuretic-like antihypertensive that increases sodium excretion and contributes an additional blood-pressure-lowering effect. South African records list Prexum Plus formulations containing both ingredients.
Why the ‘Plus’ matters
The word Plus is not simply a branding change. It signals that a second active medicine has been added. Indapamide can enhance blood-pressure control, but it also introduces considerations that do not apply in exactly the same way to perindopril alone.
That means two boxes with similar branding can have different strengths, contraindications, interaction profiles and laboratory-monitoring needs. When comparing them, read the active ingredients and milligram strengths rather than relying on the brand name alone.
Which one is stronger?
There is no useful universal answer such as “Prexum Plus is twice as strong.” Blood-pressure response does not scale that way. A combination tablet can have a greater overall effect because it works through two mechanisms, but the actual effect varies by dose, individual response, kidney function, diet, other medicines and baseline blood pressure.
The clinically important question is whether a particular formulation matches the prescription. If the pharmacy dispenses a pack that looks different from the one previously used, confirm the active ingredients and strength before taking it.
Common safety themes
Perindopril can cause low blood pressure, changes in kidney function, increased potassium and, rarely, angioedema. Indapamide can alter sodium and potassium levels and contribute to dehydration or dizziness. Pregnancy is also an important concern with ACE inhibitors.
These are reasons to follow the prescriber’s instructions and attend requested blood tests. Seek urgent medical care for swelling of the face, lips or tongue, severe breathing difficulty, collapse, or another serious reaction.
Important note
This page is general medicine information, not a dosing or switching instruction. Blood-pressure medicines should be used according to the prescription. If you are unsure which pack you were meant to take, contact the prescribing clinician or pharmacist before changing anything.
Frequently asked questions
Can Prexum and Prexum Plus be taken together?
Do not combine them unless a prescriber has explicitly instructed you to do so. Both contain perindopril, so taking both could unintentionally duplicate the ACE inhibitor.
Is Prexum Plus just a higher dose of Prexum?
No. The key difference is that Prexum Plus adds indapamide; it is a combination product rather than simply more perindopril.
Why might a doctor change someone from Prexum to Prexum Plus?
A clinician may choose a combination when one medicine alone is not meeting the treatment goal or when a fixed combination is appropriate. The reason should be individualized.
Should I compare the colour or shape of the tablets?
No. Formulations and manufacturers can change. Compare the active ingredients, strength, registration information and current patient leaflet.
Sources and further reading
KnowDifferences Editorial Team
Independent explanations with definitions, practical examples and references. Read our editorial approach.