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Vol 272 No 7296 p508-509
24 April 2004

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Agenda for 2004

Out of the dispensary and into the pharmacy — POM-to-P switching

By John Blenkinsopp

Agenda series


John Blenkinsopp, principal research fellow, school of pharmacy, University of Bradford

Ask a group of pharmacists which prescription medicines they would like to see reclassified for sale as a pharmacy (P) medicine and top of their list will be chloramphenicol eye-drops. However, the interesting part of this exercise is to see the diversity of products that the group raises as their second and third choices for switching.

The reclassification of medicines from prescription only medicines (POMs) by making them available through pharmacies without a prescription provides the potential opportunity for consumers to purchase, and pharmacists to supply, a wider range of medicinal products. In the 10 years up to 2002 there have been around 50 changes to the legal status of medicines that made them easier for patients to access.

At first sight, the title of this article “Out of the dispensary and into the pharmacy” might be assumed to refer to these medicines changing their legal status as part of the current wave of new POM-to-P switches. But could the title also refer to pharmacists as well? Might their professional future lie more within the “public” area of the pharmacy, interacting with patients and customers, rather than in the dispensary, where much of the work can be undertaken by trained and supervised technicians? In this article, I will explore the current trend of POM-to-P switching and examine its implications for both the profession and health care in general.

Reclassification

The explicit policy in medicines licensing and reclassification in Britain and throughout the developed world is that a medicine should be made freely available to patients unless a case can be made for its availability being restricted. The UK Government clearly considers one of its priorities to be the expansion of the range of medicines that pharmacies can provide without prescription. In its document “Building on the best”, published in February this year, the Government commits to doubling the rate of switches from five per year to 10 per year.

In the same document, over-the-counter simvastatin is raised as an example of a “world first” switch which marks a major step in the Government’s commitment to expand the range of medicines available for self-medication towards longer-term, chronic conditions and preventive therapies. Indeed the document goes on to list conditions that might be amenable to treatment without the involvement of the GP. These include chronic migraine, gastrointestinal conditions, skin conditions, asthma, pain management and (to loud cheers from most pharmacists) eye infections. In addition, minor ailments schemes and patient group directions allow pharmacies to supply both OTC and prescription medicines without the need to involve the GP in consultations. The future will now also increasingly see an expanding range of health care professionals, including pharmacists, who can prescribe within the NHS.

In 2002 the Application for Reclassification of a Medicine (ARM) procedures were introduced to facilitate and streamline potential POM-to-P switches. As stated previously the main ground for a medicines restriction as a POM is safety. But the safety of a medicine requires an evaluation of the molecule itself, how it is to be used as a medicine, how it could be misused and how safety could be enhanced by providing better information to the patient. With regards to the last of these points, the Medicines and Healthcare products Regulatory Agency (MHRA) now puts greater emphasis on the provision of information for patients in its assessment of applications for drugs to be switched from prescription-only to pharmacy status.

Drivers for POM-to-P switching

Medicines deregulation is occurring against a background of pressure on the drugs bill. Self-care and self-medication with non-prescription medicines may have been seen by the Government as an opportunity to shift costs out of the NHS and onto the consumer. In addition increasing pressure on NHS prescribing costs has pressured pharmaceutical companies to protect their markets. Reclassification of a medicine not only creates potential new business in the non-prescription marketplace but can also promote an existing branded medicine that is also available on prescription. Pharmaceutical companies have, unsurprisingly, embraced the opportunities offered by self-medication, particularly at this time when the rate of new discoveries is waning. However, although it may be relatively straightforward for some products to be moved from POM to P it can be far more difficult for companies to make a return on investment in this area. None the less, with careful attention to the critical success factors the business case for many switches can be made.

Indeed, once a molecule’s patent has expired it should be remembered that companies other than the original discoverer could facilitate its switch. One example of this is the recent move from POM to P status of omeprazole. Here the discoverer (Astra-Zeneca) did not switch the molecule in the UK. This was undertaken by Galpharm and a branded version of omeprazole was recently launched by GSK, perhaps to the chagrin of the discoverers.

The Royal Pharmaceutical Society has also promoted the concept of POM-to-P switching and has actively and consistently lobbied for moves from prescription-only medicine to pharmacy status. This has been undertaken in a responsible manner and has addressed any issues that such moves might raise. The Society also provides practice guidance to assist pharmacists in the appropriate use of newly switched medicines. This, together with training provided by the centres for pharmacy postgraduate education, help to ensure that medicines are managed appropriately. Indeed, the CPPE in England is currently running a module on managing POM-to-P switches which aims to help pharmacists organise and systematise the knowledge and skills required for a new POM-to-P switch.

Concerns

A number of concerns from various quarters have been raised about reclassification. The recent Which? Report on community pharmacy suggests that some pharmacists are not managing their current P medicine portfolio optimally. However, there is some evidence to suggest that emergency hormonal contraception is a good example of a POM-to-P switch that has been handled well by the profession. Companies planning new switches should learn from both the mistakes made in the past and from good examples.

Most major switches include a period of public consultation during which the MHRA invites comment from interested parties. It is always illuminating to see how other professional bodies view pharmacy and the capabilities of pharmacists. These comments have not, by and large, prevented too many switches. However, the profession is under scrutiny at the moment to see if it can rise to meet the challenges and opportunities of the current wave of switches and I anticipate a number of new “mystery shopper” initiatives.

By and large the safety record for switched medicines remains unblemished. It should, however, be noted that some early POM-to-P switches (astemizole and terfenadine) did revert to POM status. These instances serve as a reminder that new medicines should serve a sufficient period as POMs to allow for any unexpected side effects or interactions to reveal themselves. It would be most unusual for a medicine still in the “black triangle” phase of its life cycle to be considered suitable for switching.

Not all pharmacists are sure that medicines reclassification is a good idea. A number of valid concerns have been raised by members of the profession and these issues must be addressed to ensure that the profession is on board with any changes.

Adverse reactions caused by over the counter medicines are less likely to be reported than those associated with POM medicines. To improve the reporting of adverse reactions to OTC medicines, both consumers and pharmacists must be educated about the importance of monitoring the safety of medicines, particularly those that have been deregulated recently. The extension of the “yellow card” scheme to allow pharmacists to report adverse effects is important and numbers of reports from community pharmacists are still low.

As the scope for self-medication increases, so does the potential for medicolegal problems for doctors and pharmacists. Consumers who have a problem with an OTC medicine could attempt a claim against the pharmacist. This is where record-keeping becomes vital as a part of clinical governance, particularly where POM-to-P moves progress from acute to longer-term treatments. Pharmacists should embrace the need for record-keeping because this will form part of their defence in an increasingly litigious society. In addition GPs and community pharmacists must interact and work more closely together to facilitate the appropriate use of the new wave of OTC medicines and to monitor their use. Doctors and pharmacists need to clarify their attitudes towards deregulation and try to reach a consensus about how their shared goal of the safe and effective use of medicines can be achieved. This will require more, rather than less, communication between the two professions.

Manufacturers of newly switched P medicines should consider the possibility of incorporating a patient-held record card within the pack. This card should also allow other medicines currently being taken to be recorded on it. It could then be shown to health professionals (dentists, opticians, pharmacists and doctors) to assist them in recording a full medicines history in the notes they are making of the consultation.

From P to GSL

One issue that is always raised by pharmacists when discussing P medicines is the belief that manufacturers will use P status as a “stepping stone” to achieve General Sale List (GSL) status for their product. There are certainly plenty of examples in the past of this occurring.

However, these were medicines that were used to treat minor and self-limiting conditions. In the new wave of POM-to-P switches, the pharmacist will have a much greater role that adds value to the consultation and sale of an appropriate medicine. This interaction cannot be usurped and therefore will be the reason that some future P medicines will not move to GSL status.

Pharmacists should ask hard questions about their customer interactions

Pharmacists should ask themselves some hard questions about their interactions with customers. If they can answer “yes” to the question, “were my professional knowledge and skills required for that intervention with a customer?”, then how could it be argued that the medicine which was sold should be made available from outlets other than pharmacies?

Looking to the future

For pharmacists, the widening scope for self-care brings different challenges. It might seem to create the possibility of good business opportunities through increased sales. However, there may be instances where an OTC purchase will replace a prescription. It has been argued that consultations for OTC simvastatin will, in fact, identify a number of individuals who should be referred to their GP as their risk of developing coronary heart disease is sufficiently high to warrant medical management. This will, in turn, increase the chances of a real impact upon the current epidemic of heart disease in the UK. However, these new patients will require treatment, thus paradoxically increasing the number of prescriptions for statins rather than reducing them.

Certainly the pharmaceutical industry is busy at the moment identifying potential POM-to-P switches. Many of these are novel and would enhance both self-care and the profession’s ability to manage a wider portfolio of products safely and effectively. The Royal Pharmaceutical Society and the centres for pharmacy postgraduate education understand that training is the key to this move. They are putting in place measures to ensure that the profession is ready for these future switches.

Most importantly, however, the professional input into the patient’s choice of medicine could be lost unless mechanisms can be found for rewarding professional advice rather than just the dispensing of medicines. Clearly the income from sales of OTC medicines is an important component. However the NHS also needs to contribute to the pharmacist’s role in supporting self-care if it wishes to divert people from GP consultations for both minor ailments and some long-term conditions.

This is part of the challenge of the new contract and, I hope, brings us back to the title of this article and a question to the profession: “ Does your future lie outside the dispensary and in the pharmacy?”

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