Practices

You can say what an SSRI does in one sentence. It blocks the doorway that carries serotonin back out of the gap between two nerve cells, so more of it stays there for longer and is likelier to be picked up.

Worth being able to say plainly, because most people are carrying something vaguer and more frightening than that. It also sets a fair expectation.…

The blockade is partial. Serotonin is not trapped in there forever: enzymes still break it down and the transporters that are not blocked carry on working.

That matters for accuracy and it matters for reassurance, because people do picture something flooding and stuck. It also explains why serotonin…

Serotonin syndrome comes from stacking, and the second agent is usually something nobody thought to mention: a migraine tablet, a cough medicine, a herbal remedy for low mood.

Triptans, tramadol, dextromethorphan, linezolid and St John's wort all count, as do other antidepressants. Someone who mentions in passing that they…

When someone says they react badly to normal doses of almost everything, take it as information about their body rather than as a personality trait.

Bodies differ in how fast they break a medicine down. Give two people the same dose and one of them may be holding far more of it for far longer,…

Whether a medicine works can turn on something as ordinary as taking it with food or moving it to bedtime.

Vilazodone is the clear case. On an empty stomach a good deal less of it is absorbed, and the nausea it can cause is easier to sit with overnight…

The same medicine can be dangerous given one way and safe given another. Slow release is not a marketing word.

Bupropion was pulled from the market over seizures and came back once a slow release form existed, because what drove the risk was the sharp peak…

The chemistry story runs backwards from how it is usually told. Nobody found a low chemical and then built a drug. They noticed what certain drugs did to mood and reasoned back to what must have been missing.

Reserpine emptied out the monoamines and people became depressed. Iproniazid and imipramine raised them and mood lifted. Out of that came the account…

Depression is not one thing with one address. Fatigue, blank concentration, lost libido and the loss of pleasure do not all come from the same place, so it helps to name which one you most want moved.

This is why two people with the same diagnosis get offered different tablets. A flat, pleasureless presentation points one way, a fatigued and achey…

Nearly all of them do the one thing: keep a monoamine hanging about in the synapse for longer. So when you hear that some other tablet is stronger, be a little sceptical.

Head to head, the differences in how much they lift mood are modest. Where they really differ is in everything else they do to you, and in how well…

SSRIs became the default for four reasons, and being more effective is not among them. They are easier to tolerate, taken once a day, far safer in overdose, and cheap as generics.

Tricyclics match them for lifting mood and are dangerous in overdose because of what they do to the heart. MAOIs carry food and drug interactions…

The standing side-effect list is sexual difficulty, less appetite, an unsettled stomach, disturbed sleep and headache. Sexual side effects are common, and almost nobody raises them unprompted.

So ask directly, and ask about sleep while you are there. People do not usually announce these things. They quietly stop taking the tablet and say…

A genetic test can tell you how quickly your body clears a medicine. It cannot tell you whether that medicine will lift your mood, and it helps to keep those two questions apart.

Where these panels earn their place is in dosing and tolerability. Someone who breaks a drug down slowly may need less of it, and someone who clears…

No option comes without a cost. The useful question is not which medicine has side effects, it is which side effects you could live with.

One drug may unsettle your stomach for a fortnight and leave your sex life alone. Another may be kind to the stomach and flatten desire for as long…

If the worst part of low mood is that your thinking has gone foggy, say so specifically. Concentration can be treated as a target of its own rather than as something that will tidy itself up later.

Depression and attention problems overlap enough that the fog often gets filed under whichever label arrived first. Naming it separately gives you…

Heaviness in the body, aching, and a tiredness that sleep does not touch are part of low mood. They are not a separate complaint to raise another time.

There is a group of antidepressants that add a second action aimed partly at these bodily symptoms, which is one reason a prescriber may lean that…

Before deciding a medicine did not work, check that it was taken at a dose and for a length of time that could have worked.

Venlafaxine is the standard example. At low doses it behaves much like a plain SSRI, and the second mechanism people choose it for only comes in…

A newer version of a familiar medicine is usually a tidier version rather than a leap, and tidier is still worth something.

Desvenlafaxine is venlafaxine after the liver has done its work, given directly. The point of that is fewer differences between people who process…

If pain is part of what you are carrying, bring it into the same conversation as the low mood. They are not two separate appointments.

The pathways that dampen pain and the ones involved in mood overlap, and one of the antidepressants is licensed for nerve pain and long term…

Sometimes what is most missing is not mood but drive: the flat, cannot get started feeling. That can be named as the target in its own right.

Antidepressants lean in different directions, and one or two are weighted more towards the system carrying energy and alertness than towards…

Most antidepressants share a family resemblance. Bupropion does not, so much of what you have read about the others simply does not apply to it.

It works on the systems carrying drive and alertness rather than on serotonin, which is why its effects, wanted and unwanted, sit at an angle to the…