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Letters to the Editor
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Homoeopathy
Maybe the homoeopath, not the medicine, is the healer
From Dr R. J. Schmidt, MRPharmS
Kevin Leivers (PJ, 3 September, p289 PDF (170K)) makes a timely
contribution to the homoeopathy debate. However, some entirely pragmatic
questions
remain
unanswered.
The use of homoeopathic preparations of arnica for bruising seems to
be based on a Chinese whisper that originated in the late 1800s when
J.C. White, a prominent dermatologist, counselled against the use of
arnica tincture on the skin (because of its great propensity to cause
contact dermatitis) unless diluted to homoeopathic concentrations. Furthermore,
arnica tincture in high doses does not cause bruising so there is no
basis under Hahnemann’s law of similars for using arnica homoeopathically
to treat bruising.1 Or is there? Mr Leivers side-stepped this issue by
asserting unhelpfully that homoeopathic arnica is actually a “polycrest”.
What we need to see is the evidence that underpins the use of arnica
as a homoeopathic polycrest remedy. This must surely have been documented
somewhere?
In the context of the oft-cited assertion that there are no side effects
with homoeopathic remedies, we also need to have revealed to us exactly
what happens when 200C and higher potencies of arnica are administered.
Again, the effects of high potency homoeopathic arnica preparations must
have been documented somewhere? The scientific process through which
we obtain evidence to support practice is a process in which we set out
to disprove hypotheses. It is only when we fail to disprove a hypothesis
that it becomes established as a “demonstrable fact” — but
only until new data require that the hypothesis be rejected. It should
trouble us, therefore, that homoeopaths set out only to “prove” their
remedies in healthy individuals.
According to Ruddock,2,3 Hahnemann developed his ideas when seeking to
understand why tincture of cinchona bark worked as a remedy for ague.
He noticed that high (ie, toxic) doses of cinchona produced ague-like
symptoms in healthy individuals. This is (I suppose) a demonstrable fact.
And this was evidently his first “proving” experiment. It
was from this observation that he developed his “let like be treated
with like” paradigm to explain why cinchona in “allopathic” doses
ameliorated the symptoms of ague. He did not know that ague was malaria;
and he did not use homoeopathic doses of cinchona (or indeed quinine).
So, as a rather important side issue to this debate on the use of arnica,
I am still waiting to hear from practising homoeopaths why high potency,
side effect-free, homoeopathic doses of quinine are not used to treat
malaria. The World Health Organization would, I am sure, be interested
in such a remedy.
Perhaps I should clarify that it is not the practice of homoeopathy that
troubles me but the explanations proffered by practitioners as to how
it might work (if indeed it does). If they cannot provide adequate answers,
then they should finally acknowledge that Hahnemann might have been wrong
about how medicines work. And then we may be able to move forward.
We could start with the hypothesis that it is the homoeopath who is the
healer, not the homoeopathically potentised medicine, and this cannot
be tested using a randomised double blind placebo-controlled trial.
Richard Schmidt
Barnoldswick,
Lancashire
References
1. Schmidt RJ. Same laws of science apply to all medical practices — if
only people realised that. Pharmaceutical Journal 2003;270:398.
2. Ruddock EH. The Homoeopathic Vade Mecum of Modern Medicine and Surgery.
London: Homoeopathic Publishing Company; 1937.
3. Schmidt RJ. Another example of muddled thinking. Pharmaceutical Journal
2003;270:618.
That homeopathy is an individualised therapy does not prevent the use of RCTs to assess it
From Professor B. L. Furman, FRPharmS
I tried, unsuccessfully, to resist responding yet again to the recurring
debate on homoeopathy. I shall, however, confine my remarks to Lee Kayne’s
explanation of the inappropriateness
of randomised, controlled trials (RCTs) in assessing the effectiveness of homoeopathic remedies (PJ, 3
September, p277). The fact that homoeopathy is an individualised therapy
does not prevent the use of RCTs to assess it. For example, if x subjects
are entered into an RCT of, for example, the treatment of asthma, 50
per cent of them would receive placebo and 50 per cent of them would
receive their individualised therapies.
As I understand it, the homoeopathic treatment of asthma depends on various
factors, such as the specific group of symptoms and the triggers (eg,
cold, stress, exercise, dust etc). Thus, each patient would receive either
whatever homoeopathic treatment was deemed appropriate by the prescriber
or a placebo, although the prescriber, the patient and those making the
objective measurements of respiratory function would be blind to the
specific treatment or to whether or not the individual was in the placebo
group. The null hypothesis then would be that there is no difference
between the group receiving individualised homoeopathic treatments and
the group receiving placebo, as determined using a range of specified
subjective and objective measurements.
It is unlikely that the trial could be sufficiently powered to detect
effects of specific individual treatments because there may be an enormous
variation in these, as Dr Kayne implies. Nevertheless, such a design
would satisfy good practice criteria and would determine the effectiveness
of the homoeopathic system per se relative to that of placebo. I cannot
see the objection of homoeopathic practitioners to such studies. Without
them, we are invited to accept the efficacy of homoeopathy as an act
of faith, which is wholly unacceptable in the age of evidence-based medicine.
Brian L. Furman
Dean of Science
University of Strathclyde
Use of homoeopathic remedies is a social statement
From Mr M. Samson, MRPharmS
Further to the current and unending debate on homoeopathy, perhaps it
would be better to examine the type of people who apparently benefit
from such a weird and irrational treatment.
From my own experience, homoeopathy is far more popular in more affluent
areas than in more down at heel districts. The users are trying to make
a social statement about themselves.They prefer to consider themselves
a cut above the average patient and are helped by the knowledge that
homoeopathy is favoured by royalty.
Ordinary medicines are for ordinary people.Homoeopathy is for ephemeral
or transient illnesses, where accurate diagnoses are difficult to pin
down.
In short the believers can be compared with the television character
Hyacinth Bucket. Nothing rational will shake their belief,and those who
sell these preparations are only too happy to relieve these hypochondriacs
of their money. For my part,if people can be cured by simple lactose
pillules, then so be it — for common sense tells us that there
is no medicament there.
Michael Samson
Worthing,
West Sussex
The debate should move on
From Dr P. Bates, MRPharmS
The debate over whether or not proof is required for homoeopathy has
been raised once more. I must say that I do not believe that homoeopathy
has a sound scientific basis but I also accept that this has never been
a barrier to people wanting to use it. Far from it; it is, in fact, the
very “anti-science” that makes it appealing to some. The
lack of credible evidence is understandable when the basis of therapy
is individually tailored and is not easily analysed by large population
studies. When therapy is centred on the individual patient the treatment
will be more successful. Hopefully, this is what we wish to achieve with
medication use reviews, so homoeopathy certainly has something to teach
us.
Patients should have the freedom to buy a homoeopathic remedy and the
pharmacist should be happy that it can do no harm. Relax everyone: we
can think of many over-the-counter preparations that are no better than
the underestimated placebo. Despite its long history and passionate advocates,
homoeopathy does not merit any exemption from the present scrutiny. The
debate should move on to whether homoeopathy should be allowed on the
NHS and funded by the taxpayer, especially when some drugs and appliances
are not allowed or are restricted by area or patient category. This thought
always crosses my mind when dispensing an FP10 for a homoeopathic remedy.
Why not ban homoeopathy on the NHS? Patients who are committed to homoeopathy
still retain their individual choice to buy the remedies. Homoeopathy
will always exist for those interested in it. I do not think that the
homoeopathic industry will collapse as a result of it not being available
on the NHS and it will still have a role to play. It may be true that
money could be saved if more homoeopathic treatments replaced conventional
drugs. I would be interested to know if this is simply because many homoeopathic
remedies are cheaper than more expensive antidepressants, for example.
Certainly more research is required to establish if real cost-effectiveness
could be achieved or only that expensive powerful drugs would be replaced
by cheaper placebos. The search for undeniable proof for or against homoeopathy
will go on and on. However, without solid proof it is becoming difficult
to justify homoeopathy on the NHS.
Philip Bates
Southampton
Dubious benefits of distilled water
From Mr A. F. Huntley, MRPharmS
It is now time, sorely overdue, to usher Edzard Ernst to The Pharmaceutical
Journal exit, now that this apostle of alternative medicine is finally
discredited by no less an authority than The Lancet, the latter having
exposed the dubious benefits of Samuel Hahnemann’s “distilled
water” and of other fantasies relating to medicines devoid of evidential
efficacy.
A. F. Huntley
Bristol
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EDZARD ERNST, director of complementary medicine,
Peninsula Medical School, Exeter, replies:
I truly enjoyed reading Mr
Huntley’s letter.
In the 12 years I have been researching complementary medicine in
Exeter, I must have been accused hundreds of times of being over-critical
and essentially too
negative about complementary medicine. To be called “the apostle of alternative
medicine” redresses this imbalance very nicely. Mr Huntley has made made
my day. |
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