Polypharmacy in Older Adults: How Dosage Forms and Medication Administration Affect Treatment

As people get older, managing several health conditions can mean taking multiple medicines every day. This is common, but keeping track of different medicines, doses, and instructions can sometimes become difficult. This is where polypharmacy in older adults becomes an important consideration.

There is no single, universally accepted definition of polypharmacy. It is generally used to describe the use of multiple medicines by one person, with five or more medicines often used as a practical definition in research. [1] However, the number of medicines alone does not tell the whole story. How easily a person can take and manage those medicines also matters. For older adults, factors such as swallowing difficulties, memory, dexterity and complicated dosing schedules can influence how medicines are taken and managed in everyday life.

Why Polypharmacy Can Make Medication Management More Complex

For someone taking one medicine, remembering when and how to take it may be fairly straightforward. But when multiple medicines become part of the daily routine, medication management can become more complex. One medicine may need to be taken in the morning, another later in the day, while others may come with specific instructions about food, water or timing. [2]

For older adults, keeping track of these different requirements can make medication routines difficult to manage. Remembering doses, opening medication packaging, handling tablets or understanding different instructions may become challenging. In some cases, family members or caregivers may also need to provide support.[3]

These challenges are an important part of understanding the practical challenges associated with polypharmacy. The concern is not simply that a person is taking several medicines, but whether they can take each medicine correctly and consistently. This is why clear instructions, appropriate dosing schedules and regular medication reviews can play an important role in supporting safer and more manageable treatment for older adults.

How Age-Related Factors Can Affect Medication Administration

Taking several medicines can be challenging, and age-related changes may make medication administration more difficult.

Some factors that may affect medication use in older adults include [4] [5]:

Swallowing difficulties: Tablets or capsules may be difficult to swallow.

Reduced dexterity: Handling small tablets or packaging may become more difficult.

Changes in vision: Reading labels or identifying medicines can be difficult.

Memory changes: Doses may be forgotten or medicines confused.

Cognitive impairment: Changes in thinking or memory may affect medication routines.

Caregiver support: Some older adults may need help managing their medicines.

Complex instructions: Different doses and administration timings can make medication routines harder to follow.

These factors highlight why medication administration in older adults should be considered alongside the medicines themselves.

Why Dosage Form Matters in Older Patients

When choosing a medicine, the dosage form is another practical factor worth considering. The same medicine may be available in different forms, and the most suitable option can depend on the medicine itself as well as the patient's needs.[6]

Different oral medication dosage forms may include:

Tablets - a common and convenient oral dosage form.

Capsules - another widely used solid oral form.

Oral liquids or solutions - may be useful when a liquid form is more practical.

Orodispersible tablets - an alternative oral dosage form that disintegrates in the mouth before swallowing with or without water.

Factors such as ease of administration, dosing accuracy, portability and patient preference can all be considered when selecting an appropriate dosage form. The aim is to find a form that fits the medicine and the individual patient's needs, rather than assuming that one dosage form is suitable for everyone.

Dysphagia and the Challenge of Swallowing Medicines

For older adults taking several medicines, swallowing difficulties can become an important consideration in medication management. Dysphagia means difficulty swallowing food, drinks or medicines. When dysphagia occurs alongside polypharmacy, taking several tablets or capsules can become more difficult and may affect how consistently medicines are taken. Research has identified difficulty swallowing oral medicines as a concern among some older adults. [7]

Some important considerations include:

  • Multiple tablets: Taking several medicines may make swallowing more difficult.
  • Following treatment: Swallowing problems may make it harder to take medicines as prescribed.
  • Changing medicines: Tablets should not be crushed or altered without professional advice, as this may not be suitable for every medicine.
  • Dosage form: An alternative dosage form may be considered when swallowing conventional tablets or capsules is difficult.
  • Professional advice: Patients should discuss swallowing difficulties with a doctor or pharmacist before changing how they take their medicines. [8]

For people experiencing polypharmacy and swallowing difficulties, recognising these challenges can help support safer and more practical medication use.

Conclusion

Managing polypharmacy in older adults is about more than keeping track of multiple medicines. How medicines are administered, from dosing schedules to dosage forms, can also affect how easily they fit into everyday life. Swallowing difficulties, reduced dexterity and cognitive changes may add further challenges, making individual needs an important part of medication management.

A patient-centred approach brings together patients, caregivers, pharmacists and other healthcare professionals to help ensure that medicines are practical and appropriate for the individual. At Novumgen, a focus on pharmaceutical formulation and patient-centred drug delivery reflects the wider industry effort to consider how medicines can better meet evolving patient needs.

References

  1. Polypharmacy | NIH
  2. When should I take my medicines?
  3. Interventions for improving medication‐taking ability and adherence in older adults prescribed multiple medications
  4. As You Age: You and Your Medicines
  5. Medication use problems among older adults at a primary care: A narrative of literature review
  6. Oral drug delivery in personalized medicine: Unmet needs and novel approaches
  7. Crushing Older adults with difficulty swallowing oral medicines
  8. Choosing medicines formulations in swallowing difficulties