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Surfing, self-medicating and safety: buying non-prescription and complementary medicines via the internet
  1. T L Bessell1,
  2. J N Anderson1,
  3. C A Silagy1,
  4. L N Sansom2,
  5. J E Hiller3
  1. 1Monash Institute of Health Services Research, Monash University, Victoria, Australia
  2. 2School of Pharmaceutical, Molecular and Biomedical Sciences, University of South Australia, SA, Australia
  3. 3Department of Public Health, University of Adelaide, SA, Australia
  1. Correspondence to:
 Ms T Bessell, Monash Institute of Health Services Research, Monash University, Clayton, Victoria, Australia 3168;
 tracey.bessell{at}med.monash.edu.au

Abstract

Objective: To examine whether the sale of medicines via the internet supports their safe and appropriate use.

Design: e-Pharmacy websites were identified using key words and a metasearch engine and the quality of information published on these websites was surveyed using the DISCERN tool. A case scenario and internet pharmacy practice standards were also used to evaluate the quality of care delivered.

Setting and participants: Between July and September 2001 104 websites were surveyed and 27 sent either Sudafed (pseudoephedrine HCl), St John’s wort products, or both to a residential address in Melbourne, Australia.

Main outcome measures: Quality of health information (DISCERN ratings), information exchanged between e-pharmacy staff and consumers, and product and delivery costs.

Results: Of 104 e-pharmacies from at least 13 different countries, 63 websites provided some health information but overall the quality of the information was poor. Only three website operators provided adequate advice to consumers to avoid a potential drug interaction. The costs for a daily dose of pseudoephedrine HCl (240 mg) ranged from A$0.81 to A$3.04, and delivery costs from A$3.28 to A$62.70.

Conclusion: Consumers who self-select medicines from websites have insufficient access to information and advice at the point of ordering and on delivery to make informed decisions about their safe and appropriate use.

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The internet provides consumers with global access to health information, services and support. It has revolutionised the sale of medicines so that consumers can self-select and buy medicines, often delivered across national and state boundaries, without face to face interaction with a health professional. e-Pharmacies are websites selling prescription only medicines and other products including non-prescription and complementary medicines.

To ensure the optimal use of medicines, consumers should have timely access to quality information about their benefits, risks, and appropriate usage.1 Consumers want information about medicines but have different individual needs.2,3 Health professionals who prescribe or dispense medicines have professional, ethical, and legal responsibilities to provide consumers with quality information and facilitate the safe and appropriate use of medicines. Whether e-pharmacies provide such information or advice is largely unknown.

Previous studies of e-pharmacies are limited to American websites or those selling lifestyle medications, including sildenafil and finasteride.4–10 Most studies regarding quality of online information focus on specific diseases or treatments, rather than the information and advice associated with the delivery of pharmaceutical services.

As controversy brews over the announcement of a German health insurance company that encourages consumers to buy medicines via the internet,11 this study aims to examine whether consumers can do so safely. It is the first study to evaluate the quality of information published on global e-pharmacy websites and to determine what happens when a consumer orders a non-prescription or complementary medicine from an e-pharmacy. In particular, we examined whether staff exchanged information with, and provided relevant advice to, consumers to promote the safe and appropriate use of non-prescription and complementary medicines.

METHODS

In May 2001 e-pharmacy websites were identified using Copernic (www.copernic.com), a metasearch engine that simultaneously searches 10 global commercial search engines. Search terms employed were “internet pharmacies”, “internet pharmacy”, “internet medicines”, “online pharmacies”, “online pharmacy”, and “online medicines”. Websites recording multiple hits were included only once in the sampling frame. Those that only offered electronic transfer of prescriptions from doctor to pharmacy or prescription refills (increasingly common in the USA), three members only sites, four sites written in languages other than English, two sites with transmission errors, and eight sites under development were excluded.

Between July and September 2001 we surveyed all websites in the sampling frame. The survey collected data in two distinct sections—the quality of health information published on e-pharmacies and a case study where medicines were purchased via the internet.

The quality of health information was evaluated using the DISCERN rating instrument which was specifically developed and validated to assess a broad range of online and written consumer health information.12 DISCERN consists of 15 questions, each representing a unique quality criterion, plus an overall quality rating.

The case study was undertaken by one of us (TB) acting as a consumer who attempted to purchase one non-prescription and one complementary medicine using a set case scenario (box 1). Standardised patients are a useful method to assess the quality of primary health care including pharmacy practice.13–17 All products were to be delivered to a residential address (not a post office box) in Melbourne, Australia.

Box 1: Case scenario (35 year old Australian woman)

Place an order for Sudafed (preferred brand) or pseudoephedrine HCl (30–120 mg) (single therapeutic ingredient), quantity 10–60 capsules/tablets and St John’s wort 100 mg+, quantity 10–60 (no preferred brand) from an online supplier of scheduled medicines. Choose the cheapest Sudafed or St John’s wort product if multiple options are available.

The Sudafed or pseudoephedrine HCl product is for your own use. You have had a runny nose for a couple of days and a friend suggested you try it; you have not used this product before or tried anything else to treat the problem. The St John’s wort is also for your own use. You have been feeling really flat and low and you read about St John’s wort in a magazine; you have not used this product before. You have taken Prozac (fluoxetine) for depression for the past 3 months after being in a car accident. You are not taking any other medications and have no other illnesses.

We chose Sudafed (pseudoephedrine hydrochloride) and St John’s wort (Hypericum perforatum) tablets for the case scenario because they are both commonly used and widely available. Pseudoephedrine HCl is often illegally misused to manufacture amphetamines18–20 and in Australia its importation requires a licence from the Therapeutic Goods Administration.21 St John’s wort products interact with many medicines by altering drug metabolism or increasing central nervous system serotonin levels.22 It can interact with medicines including cyclosporin, digoxin, oral contraceptives, theophylline, wafarin, anticonvulsants (carbamazepine, phenobarbitone and phenytoin), selective serotonin reuptake inhibitors (SSRIs) and related drugs (citalopram, fluoxetine, paroxetine, sertraline, nefazodone), triptans (sumatriptan, naratriptan, rizatriptan and zolmitriptan), human immunodeficiency virus (HIV) protease inhibitors, and HIV non-nucleoside reverse transcriptase inhibitors.22 Serotonergic syndrome is characterised by changes in mental status and motor and autonomic function and is a potentially serious adverse drug event that may occur when St John’s wort and fluoxetine are taken concurrently.

Data on the nature of patient information collected by pharmacy staff; the provision of written information and advice by pharmacy staff; product recommendations; referrals; payment security; delivery costs, times and methods; customs inspections; and the condition of the product received were collected. The information exchanged with and advice provided to consumers by e-pharmacy staff was assessed using pharmacy practice standards and current guidelines.23 We also assessed whether e-pharmacies had processes in place to detect the potential drug interaction between St John’s wort and fluoxetine. (A copy of the survey tool is available upon request from the first author.)

The Monash University Standing Committee on Ethics in Research Involving Humans gave ethics approval for this study. Informed consent was not sought from e-pharmacy operators before buying these medicines because of the simulated nature of the project. However, in accordance with the recommendations of the ethics committee, we sent e-pharmacies that delivered medicines a hard copy of the data collected from their individual website 1 month after delivery and each had the opportunity to withdraw their results from the study.

The data were summarised using descriptive statistics.

RESULTS

Quality of information

We identified and surveyed 104 unique e-pharmacy websites from at least 13 different countries; 63 (61%) provided some health information, 51 (49%) provided some information about medicines, 31 (30%) published information on disease states, 17 (16%) provided lifestyle information, 41 (40%) provided no information, and 53 (51%) published poor quality information of limited or no benefit (table 1).

Table 1

Frequency of DISCERN ratings of health information given by e-pharmacies by geographical location

Of the 104 e-pharmacies, 52 (50%) allowed consumers to search by trade name, 55 (53%) by therapeutic class, and 22 (21%) by therapeutic substance, while 35 (34%) offered no search function at all. Thirty (29%) websites displayed external links, most commonly to consumer health support groups and online medical libraries, but others included one online gambling site and two news websites.

Twenty five websites published information about pseudoephedrine HCl. Of these, 21 (84%) published useful information (DISCERN rating 4 or 5) about the benefits associated with taking pseudoephedrine HCl but only 13 (52%) published such information about risks. Nineteen websites published information about St John’s wort products and overall the information about the benefits and risks of these products was more balanced (17 and 18 websites, respectively). However, the information was often of a general nature and less useful. For example, “this medication may interact with other medicines” rather than “this medicine interacts with a list of specific therapeutic substances”.

Case study

Of the 104 e-pharmacies, 31 (30%) and 41 (40%) websites sold pseudoephedrine HCl and St John’s wort, respectively. Fifteen of the 31 (48%) delivered pseudoephedrine HCl (14 Sudafed and one local generic product) while 26 of the 41 (63%) delivered various St John’s wort products to Australia. Fourteen e-pharmacies delivered both products and a total of 27 packages were received from Australia, Canada, New Zealand, UK, and the USA. Sixteen (52%) and 15 (37%) of the e-pharmacies selling pseudoephedrine HCl and St John’s wort, respectively, did not deliver these medicines to Australia, largely because 31 (30%) of the 104 e-pharmacies only deliver such medicines within their national borders. No e-pharmacies withdrew their results.

Of the 27 e-pharmacies that supplied medicines, 13 (48%) required consumers to register a user name and password. Twenty five websites (93%) confirmed the order and delivery details of products via email. All sites used secure socket layer (SSL) technology for payment transactions. The operation of these e-pharmacies appeared to involve registered pharmacists and no websites sold prescription only medicines without a prescription written by a doctor.

Of the 27 e-pharmacies that supplied medicines, 15 (56%) provided information about directions for use, eight (30%) about treatment length, 14 (52%) about potential adverse events, 11 (41%) about interactions, and four (15%) offered what to do if ther condition did not improve. No sites suggested associated ancillary lifestyle changes, and no e-pharmacy staff recommended alternative or additional products. Upon delivery the only written information about the medicines received was one manufacturer’s information sheet regarding the use of pseudoephedrine HCl and one information sheet regarding St John’s wort and potential drug interactions.

Of the 26 e-pharmacies that supplied St John’s wort products, five (19%) websites asked for consumer information that could have enabled staff to detect the potential drug interaction involving fluoxetine and St John’s wort, but only three (12%) contacted the consumer about this concern. The three e-pharmacies initially communicated via email asking for additional contact. Three e-pharmacists subsequently counselled the consumer by telephone and correctly referred the consumer to see her doctor before commencing self-medication with St John’s wort. The staff of the remaining 21 (81%) e-pharmacies could not detect this potential drug interaction because they failed to exchange relevant information with consumers.

Products were received by post (12, 44%), registered post (11, 41%), and courier (4, 15%) and signatures were required on 15 (56%) occasions. Eight of 16 (50%) international deliveries were opened, inspected, and resealed by Australian customs officers. Two packages (13%) containing pseudoephedrine HCl products had no tangible evidence of customs inspection. Upon delivery, we identified the sender of 16 (60%) packages by information visible on the exterior of the package, 19 (70%) by descriptions of package contents, and three (11%) packages by deduction using postmarks and dates. Sixteen (60%) were packed in boxes and 11 (40%) in envelopes. Twenty two (81%) packages contained bubble wrap or similar materials. Despite these packaging precautions, two (7%) products were damaged at the time of delivery.

Specific errors included one delivery of an out of date St John’s wort product (expired August 2001, delivered September 2001) and one package was sent to the billing address instead of the residential address. The e-pharmacy that supplied the out of date product was contacted by email and a refund was offered. One pharmacy also substituted a different brand of St John’s wort from that originally ordered with no notification or explanation about the change.

The product costs, postage and handling charges, and delivery times were highly variable. For example, the product costs of a total daily dose of pseudoephedrine HCl 240 mg ranged from A$0.82 to A$3.04 (mean A$1.50, 95% CI 1.13 to 1.87). Costs of St John’s wort products also varied but are not comparable because of inconsistent recommended daily dosages and the non-standardised nature of some complementary medicine products. Postage and handling charges ranged from A$3.28 to A$62.70 (median A$7.54). The product, postage and handling costs were most expensive for deliveries from the USA. All costs are given in Australian dollars (A$) where A$1=£0.37 and US$0.52. Delivery times ranged from 2 to 18 days (mean 6 (95% CI 4.5 to 7.5)).

DISCUSSION

Australian internet pharmacy practice standards state that “the pharmacist provides medicines and devices through the internet in a manner which safeguards the privacy and confidentiality of the patient, delivers the correct product with appropriate information to the patient, and promotes safe, correct and appropriate use of medicines.”24 Despite the introduction of similar standards and guidelines in Canada, New Zealand, the UK and the USA,25–28 we found that most e-pharmacies (including those operating in these countries) selling non-prescription and complementary medicines failed to uphold the intent of these standards. This study shows that consumers who self-select non-prescription medicines from e-pharmacies are at risk of medication misadventures.

Consumers cannot make an informed decision about purchasing a medicine using information provided by e-pharmacies because balanced information about the benefits and risks of taking medicines was largely not available or of poor quality. Furthermore, written information was rarely provided upon delivery. Although the packaging contains some information, it alone does not adequately protect consumers from harm.29 Pharmacists have a duty of care to ensure that consumers are provided with sufficient information to assist the safe and effective use of medicines to optimise health outcomes.30 e-Pharmacy operators must be encouraged to provide consumers with quality balanced pharmaceutical information at the right place and time: information linked to individual products at the point of ordering and upon delivery.

Medical and consumer literature identifies the importance of an exchange and sharing of information between consumers and health professionals to achieve positive health outcomes.31 In traditional “bricks and mortar” practices consumers can be provided with, or ask for, advice about medicines, and such advice is generally valued.32 Pharmacists also refer consumers to their doctor when necessary. UK research has shown that, in about a quarter of pharmacist-consumer consultations, no sale is made and pharmacists often recommend customers to see their doctor.33 In an online environment the exchange of information between pharmacists and patients requires easy to use and secure electronic communication processes. It is therefore disturbing that the majority of e-pharmacy staff were unable to detect a potentially serious drug interaction because processes were not in place to obtain relevant information about consumers, including their current medications.

One of the potential strengths of the internet is to provide consumers with informed choices. Medicines have many different trade names, and the same therapeutic substances have different approved names in different countries—for example, paracetamol (UK) and acetaminophen (USA). Consumers wishing to compare brands, formulations, and prices of similar products should be able to search by therapeutic substance or class, but less than half the e-pharmacies provided such a capability. e-Pharmacies could incorporate these and other consumer friendly online features including drug-drug and drug-disease interaction checks, self-monitoring tools, and medication charts and diaries.

Despite cost being a major driver of online consumerism and the relatively free trade of non-prescription medicines, we observed large price disparities between medicines sold by e-pharmacies operating in different countries. Consumers are more likely to realise cost savings from e-pharmacies when purchasing multiple items, and whether they consequently buy more products than those immediately required is unknown.

Ultimately, consumers will decide whether or not to purchase medicines from e-pharmacies, as safeguarding the privacy and confidentiality of the consumers is paramount to its sustainability as a commercial resource. Although discrete packaging protects consumers from potential embarrassment, the origin of medicines sent via the postal system should be identifiable by customs officers and consumers. All packages should include contact details of the sender. Furthermore, errors and the damaged condition of some products upon delivery may deter consumers from repeated use of e-pharmacies.

The results of this study are tempered by some methodological limitations. Although we searched broadly using a rigorous identification strategy, it is difficult to determine whether this sample of 104 websites was entirely representative because the total current number of e-pharmacies operating at any one time is unknown. Due to the nature of the internet, it is difficult to evaluate whether an e-pharmacy is bona fide unless the site displays a seal that can be electronically verified by an independent pharmacy statutory body.27 Furthermore, it is almost impossible to know with whom you are dealing or the location or ownership of e-pharmacies. Of the 27 that supplied medicines to us, all appeared to involve a qualified pharmacist, but whether qualified or unqualified staff supervised our medication order was unknown. Most countries legally permit the export and import of non-prescription medicines for personal use, but only approximately half of the e-pharmacies selling pseudoephedrine HCl and St John’s wort products delivered such medicines to Australia. The reasons for this are unknown, but limited the sample size of the case study. Despite these limitations, this study provides a unique insight into e-pharmacy practice in 2001.

Key messages

  • Health information published on many e-pharmacy websites is absent or of poor quality.

  • Despite the introduction of e-pharmacy practice standards, consumers may not be safeguarded from inadvertent medication misadventures.

  • Consumers should be provided with balanced information about the benefits and risks of medicines at the point of ordering and upon delivery.

  • Consumer education about the benefits and risks of buying medicines online is needed.

We conclude that internet technologies should be used to develop ethical and innovative practice models that make the management of medications for consumers easier, simpler, and safer to achieve positive health outcomes, but surfing and self-medicating is currently not safe. Consumer education about the benefits and risks of buying medicines via the internet is needed because national e-pharmacy standards alone do not adequately address the overall lack of information and advice provided. It is vital that such standards address the needs for pharmacists and consumers to exchange information and prevent self-medication misadventures. To support the safe and appropriate use of non-prescription and complementary medicines, e-pharmacies must go beyond satisfying minimum practice standards and deliver consumer focused services including the provision of quality medicines information linked to the product at the time of ordering, and written information on the delivery of medicines.

REFERENCES

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