of depression. What I object to is health food companies playing on people’s fears and anxieties with regard to their health by making unproven medical claims to sell their excessively expensive products.
Doctors work by the rules of something called ‘evidence-based medicine’. The principle of this is that if I want to prescribe you something, it should be of proven benefit. In the past doctors gave out all sorts of tonics and pills based on guesswork and trial and error. I’m sure some of these medications were effective and helpful, but many would have been no better than a placebo. Nowadays we are supposed to apply some evidence to everything we prescribe. If you come to see me with high blood pressure, I can think of 10–20 different pills I can start you on. As the patient you need to put your faith in me giving you the most effective pill for your condition. I can make a decision based on my own experiences over the years after having tried a few different pills on a few different patients. Or I can make my decision founded on a trial of over 10,000 people with high blood pressure that looked with minimal bias at which drug or combination of drugs seemed to reduce blood pressure most effectively and with the fewest side effects. These studies are by no means perfect and as an individual you may not respond in the same way that the majority of people did in the study. However, isn’t that a more accurate way of deciding your medication than by me choosing which tablet I most like the name of, or which medicine has the prettiest drug rep who takes me out for lunch most often?
Soon after my smoothie, I was stopped in a shopping mall by a guy selling eucalyptus cream for diabetics.
‘How does this work?’ I ask.
‘Well, mate, you know diabetics, yeah? They have bad circulation to their feet and get foot ulcers.’ (I can’t fault him so far.) ‘Well, when you rub this cream into the foot, it improves the blood flow to the skin.’
‘Rubbing anything into your feet increases the blood flow.’
‘Well, the eucalyptus cream increases oxygen production in the soft tissues.’
‘How does it do that?’
‘Free radicals and that.’
‘Have you got any evidence to show that this works any better than, say, rubbing lard into your feet?’
Mr Eucalyptus Cream Man shows me the back of his jar of cream. It says, ‘Formulated specifically with diabetics in mind.’
‘That’s not really evidence, is it?’
‘Is it you who is diabetic?’
‘No.’
‘Someone in your family?’
‘No.’
‘Are you going to buy some of this cream, then?’
‘Absolutely no.’
‘Well, piss off and stop wasting my time. I’m trying to make a living here.’
Really, I’m just as guilty as Mr Eucalyptus Cream Man. Mr Dudd came to see me recently with a bad back. His back aches because, like him, it is 90 years old. The vertebrae are crumbling and his spine has no flexibility any more. He has tried codeine but this makes him constipated and drowsy and I’m reluctant to prescribe him anti- inflammatory tablets because these could give him a stomach ulcer and damage his kidneys. I decide to give him an anti-inflammatory gel to rub on to his back. There isn’t really any evidence that this is more effective for back pain than rubbing lard onto his back. I still prescribe it because I don’t want to say, ‘Sorry, Mr Dudd, your spine is as crumbly as stilton and there is bugger all I can do for you.’ Instead, he goes home and every morning Magda his Polish care assistant comes and gently rubs the ‘magic’ gel into his lower back. Mr Dudd thinks it is wonderful. ‘Thank you, Doctor. That gel really helps.’ That’s the thing about medicines that are shown to be no better than a placebo: they still work because placebos work. As long as the placebo is cheap and doesn’t cause any harm, I’m all for them. I am marginally better than Mr Eucalyptus Cream Man because his cream cost ?25 and he was targeting vulnerable old people with diabetes who are worried about getting foot ulcers. My ibuprofen gel cost ?1.25 and I made an old man very happy (with a bit of help from an attractive Polish care assistant). Interestingly, the cost of the painkilling gels varies between ?1.25 and ?12.75 depending on the brand, yet all are probably no more effective for back pain than lard, which costs 19p if you buy the no-frills version in Tesco.
Sticking to evidence-based medicine can be very frustrating. For years I had enjoyed advising my patients to drink lots of cranberry juice when they have a urine infection. They always loved this advice. It helped stop the bugs from sticking to the wall of the bladder I used to say. I don’t know where I got this information from but it sounded good and someone clever must have told me it at some point. I guess it was just one of those urban myths that we all buy into sometimes. Patients always love a risk-free natural remedy, especially when advised by the doctor. Unfortunately, a big study recently showed that although drinking cranberry juice can help prevent urine infections, it can’t actually rid you of the bacteria once you have an infection. Bugger, sticking to evidence-based medicine can be very boring sometimes.
Carolina
Carolina was 15 and, unlike the vast majority of teenagers who come to see me, she actually spoke to me in normal words and sentences rather than in grunts and shrugs. I had seen her on several occasions with minor problems, but this time she came in wanting to talk about going on the pill. She didn’t have a boyfriend but some of her friends were having sex. She didn’t feel ready to have sex yet but wanted to make sure that if anything unexpected did happen that she would be protected. She understood all about sexually transmitted infections and knew how important it was to use condoms. She had also looked up online all about the pill and how it worked. I suggested that she spoke to her mum about this but Carolina told me that her mum was a strict Catholic and she couldn’t talk to her about sex. We had a long chat and she decided that she was going to take the prescription for the pill away with her and then have a think about things before potentially cashing it in for the tablets themselves. I remember thinking to myself that if I ever have a teenage daughter, I hope she can talk as openly and honestly about sex as Carolina.
A month later I got an angry phone call: ‘Dr Daniels, it is Carolina’s mother here. I was just wondering if you could tell me the age of consent in this country.’
‘It’s, erm, 16.’
‘In that case, why have I found a prescription for the contraceptive pill under the bed of my 15-year-old daughter? It’s got your signature on it.’
It was an awkward moment. My first reaction was to ask what she was thinking looking under her daughter’s bed. Surely that must be the first rule of having a teenager. Don’t look under their beds, as you’ll only find something you don’t want to know about! Carolina’s mum was furious. It was a shame, really, as she came to see me fairly often herself and we actually got on quite well. She was one of those really grateful patients who always thanked me profusely even when I hadn’t really done much. She was Polish and I romanticise that in Poland they have an old-fashioned respect and admiration for their doctors long since vanished in the UK. The problem was that alongside the old-fashioned value of respecting doctors was the old-fashioned value of expecting your teenage daughter to keep her virginity until her wedding night.
The rules on prescribing the pill to minors are fairly clear. Girls under 16 can go on the pill without their parents’ permission. They must have capacity, which basically means that they are able to understand the decision they are making and the pros and cons. As the doctor, I am supposed to encourage the girl to speak to her parents but if I think she will have sex anyway it is recommended that the doctor prescribe her the pill. This was contested in 1983 by a Catholic mother called Victoria Gillick. She didn’t want her underage daughters being given the pill without her permission. She lost the case. Interestingly, although under-16s can make their own decisions about treatments that they want, they can’t refuse treatment. For example, if a 15-year-old has appendicitis and needs to be operated on but she or he declines surgery, the parents can overrule the decision.
For me, prescribing the pill for 15-year-olds is something that I do fairly frequently. Some people feel that as a GP prescribing the pill, I’m encouraging underage sex. As far as I’m concerned, teenagers are influenced by friends, music, TV and magazines. They’re not influenced by slightly geeky 30-year-old doctors with bad hair and Marks and Spencer’s trousers. She might later regret having her first sexual experience too young, but she’ll be
