Guiddeness treatment
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Here is a comprehensive overview of the treatment of giddiness (dizziness/vertigo) based on authoritative medical textbooks.
Treatment of Giddiness (Dizziness / Vertigo)
1. Classify the Type First
Effective treatment depends on correctly categorizing the dizziness:
| Category | Description | Common Causes |
|---|---|---|
| Vertigo | Sensation of spinning | Inner ear, vestibular, brainstem/cerebellar disorders, drug toxicity |
| Presyncope / Lightheadedness | Feeling of impending faint | Cerebral hypoperfusion, arrhythmia, low blood volume, vasovagal |
| Disequilibrium | Unsteadiness when standing | Any neurosensory disturbance |
| Non-specific / Vague | Floating, vague lightheadedness | Often associated with psychological disorders |
2. Symptomatic (Pharmacological) Treatment of Vertigo
These drugs reduce the sensation of vertigo and associated nausea. No single drug works for everyone, and large trials comparing them are lacking. Side effects (mainly drowsiness) are common because these medications are not specific to the vestibular system.
Antihistamines
| Drug | Dose |
|---|---|
| Meclizine | 25 mg PO every 4–6 h |
| Dimenhydrinate | 50 mg PO or IM every 4–6 h, or 100 mg suppository every 8 h |
| Promethazine | 25–50 mg PO/IM or suppository every 4–6 h |
Antihistamines and anticholinergics are preferred for mild to moderate vertigo — effective with minimal sedation.
Anticholinergic
| Drug | Dose |
|---|---|
| Scopolamine | 0.2 mg PO every 4–6 h, or 0.5 mg transdermal patch every 3 days |
Benzodiazepines
| Drug | Dose |
|---|---|
| Diazepam | 5–10 mg PO/IM/IV every 4–6 h |
| Lorazepam | 0.5–2 mg PO/IM/IV every 6–8 h |
Useful for severe vertigo where sedation is desirable. Prolonged use is not recommended.
Antiemetics (for prominent nausea)
| Drug | Dose |
|---|---|
| Prochlorperazine | 5–10 mg PO/IM every 6 h, or 25 mg suppository every 12 h |
| Metoclopramide | 5–10 mg PO/IM/IV every 4–6 h |
Can be combined with other antivertiginous drugs.
3. Treatment by Specific Cause
Benign Paroxysmal Positional Vertigo (BPPV)
- Most common cause of episodic vertigo without hearing symptoms
- Epley maneuver (canalith repositioning) — first-line, highly effective
- Medications offer limited benefit; vestibular suppressants used short-term if needed
Ménière's Disease
- Low-salt diet, diuretics (hydrochlorothiazide), vestibular suppressants during attacks
- Intratympanic gentamicin or corticosteroids for refractory cases
- Surgical options (endolymphatic sac decompression) for severe cases
Vestibular Neuritis / Labyrinthitis
- Short course of corticosteroids (e.g., methylprednisolone) may speed recovery
- Antivertiginous drugs for symptomatic relief in acute phase
- Vestibular rehabilitation exercises — key to long-term recovery
Presyncope / Lightheadedness
- Treat the underlying cause: arrhythmia, orthostatic hypotension, dehydration
- Review and stop offending drugs (see below)
Psychogenic / Functional Dizziness
- Cognitive behavioral therapy (CBT)
- Vestibular rehabilitation
- SSRIs may benefit anxiety-related dizziness
4. Drug-Induced Dizziness — Check and Stop Offending Agents
Many common medications cause giddiness. Always review the medication list:
- Alcohol, α-blockers, anticholinergics, antihistamines, tricyclic antidepressants
- Anticonvulsants, β-blockers, calcium channel blockers
- Diuretics, muscle relaxants, NSAIDs, psychotropics, vasodilators
5. Non-Pharmacological Measures
- Vestibular rehabilitation — exercises to retrain the vestibular system; effective for chronic dizziness
- Fall precautions — particularly important in the elderly (dizziness is a major fall risk factor)
- Avoid triggers — sudden position changes, caffeine, alcohol
- Epley/Semont maneuver — for BPPV specifically
Key Principles
- Most dizziness is benign and self-limiting
- A thorough history (type, duration, triggers, associated hearing loss/tinnitus/headache) guides diagnosis and treatment
- Red flag symptoms (sudden severe headache, diplopia, dysarthria, ataxia, focal neurological signs) require urgent neuroimaging to exclude posterior fossa stroke
- In the elderly, dizziness is a risk factor for falls and functional decline — functional assessment is essential
— Bradley and Daroff's Neurology in Clinical Practice; Textbook of Family Medicine 9e
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