Vertigo is not lightheadedness. It is the clear, awful sensation that the room is rotating, and it is frightening the first time.
Meclizine damps the signal from the balance organ, and it does so with less sedation than most of its relatives.
Without prescription, plain packaging. For vertigo, short courses only.
These get used interchangeably and they are not the same thing. Getting the distinction right points to the cause.
Vertigo is a sense of movement — the room spinning, or yourself turning — when nothing is moving. That points to the balance system in the inner ear or its connections.
Lightheadedness is feeling faint, as though you might pass out. That usually points to blood pressure, circulation or blood sugar.
Unsteadiness is difficulty with balance while walking, without any spinning. That tends to point elsewhere again.
This medicine is for the first one.
What it does
Meclizine blocks histamine receptors along the pathway that runs from the balance organ to the brainstem, and it has anticholinergic activity that damps the same pathway from another angle.
The signal still arrives, just weaker. Below the threshold that produces nausea and the full spinning sensation.
Compared with older antihistamines used for the same purpose, it causes noticeably less drowsiness — which is its main advantage. Less, not none.
Where it is used
Vertigo from inner ear problems
Motion sickness
Nausea and vomiting associated with either
For travel, take it before setting off rather than once symptoms start. Once nausea is established the stomach empties poorly and absorption suffers.
Short courses only for vertigo
An important point that is rarely explained.
If the inner ear on one side is damaged, the brain can usually recalibrate over weeks and the vertigo fades. That process is called vestibular compensation, and it is how most people recover.
But compensation only happens if the brain receives the mismatched signals and works on them. Suppressing those signals with medication for weeks delays or prevents the adjustment.
So: use it for the acute phase, when the spinning is severe and you cannot function. Then stop and let the brain do its work.
People kept on vestibular suppressants for months often end up with chronic unsteadiness that would have resolved.
Vestibular rehabilitation does more long term
Counterintuitive, since the exercises deliberately provoke mild symptoms.
That is the point. Controlled exposure to the mismatch drives the brain to recalibrate. Avoiding all movement slows recovery.
Specific head and eye movement exercises are the mainstay of recovery for most inner ear vertigo, and they outperform medication beyond the first days.
And for one very common cause — crystals displaced within the inner ear canals — a specific repositioning manoeuvre can resolve it in a single session. No medicine does that.
Taking it
For travel: about an hour before departure.
For vertigo: as directed, short course.
With or without food.
No alcohol.
Find out how it affects you before driving.
Who should be careful
Narrow-angle glaucoma
Enlarged prostate or trouble passing urine
Severe liver or kidney disease
Older adults, who are more prone to confusion and falls
Anyone on sedatives or strong painkillers
Possible side effects
Drowsiness, though less than with older alternatives
Dry mouth
Blurred vision
Constipation
Headache
Confusion, mainly in older people
When vertigo needs urgent assessment
Most vertigo comes from the inner ear and is not dangerous. A few patterns are different.
Sudden hearing loss alongside the vertigo
Double vision, slurred speech, facial weakness or numbness
Severe headache, unlike any you have had
Weakness or numbness in an arm or leg
Inability to walk at all
Vertigo after a head injury
Those suggest something other than the inner ear and need seeing straight away rather than treating with a tablet.
Ordering without prescription: how it works
Keeping some in the cupboard is more practical than trying to buy it mid-attack.
Pick the strength and the pack size, put in a delivery address, confirm. Couple of minutes, any time of day, no queue and no conversation accross a counter.
It goes out in plain packaging. No pharmacy name on the outside, nothing that hints at what is inside. How long delivery takes depends on where the parcel is headed.
On price it comes down to strength and pack size. Larger packs generally work out better per unit.
Prices sit below a UK high street counter for an unglamorous reason: no rent in a good location, no counter staff, no window display. Most of the range is generic as well. That saving goes to you.