Compact summary and basics
Amitriptyline, commonly known by the trade name Elavil, is a tricyclic antidepressant used in the UK both under its brand name and as a generic. It works by modifying neurotransmitters such as serotonin and noradrenaline. Improvements in mood often take several weeks, although benefits for sleep or chronic pain may be noticeable sooner.
- Active substance: amitriptyline
- Common licensed use: depression; frequent off-label uses include neuropathic pain and migraine prevention
- Typical tablet strengths available privately in the UK: 10 mg, 25 mg, 50 mg, 75 mg
For details about medicines that can alter amitriptyline effects see caution: social interaction warning bulletins.
Clinical use cases in practice and signals pointing to
In UK practice amitriptyline is formally indicated for depressive illness, but clinicians often prescribe it for other conditions when its pharmacology is helpful. Common additional uses include prevention of migraine, management of chronic neuropathic pain and treatment of sleep problems related to pain or low mood.
For obsessive compulsive disorder selective serotonin reuptake inhibitors such as sertraline or fluoxetine, or clomipramine under specialist care, are usually preferred.
Taking amitriptyline safely
Follow your prescriber besides the patient information leaflet. Never change or stop the medicine without professional advice.
- Start low and titrate slowly. Typical approaches include:
- Depression: starting doses often lie between 25 mg and 50 mg at night, with gradual increases if the need arises.
- Pain or migraine prevention: many patients start on 10 mg to 25 mg at night and increase based on response and tolerance.
- Swallow tablets with water; taking the dose at bedtime can reduce daytime drowsiness.
- Do not discontinue abruptly; your clinician will recommend a gradual taper to reduce withdrawal effects.
- Avoid alcohol while taking amitriptyline because it increases sedation. Grapefruit juice may raise blood levels and is best avoided.
If you have not noticed improvement after several weeks speak to your prescriber instead of adjusting the dose yourself.
Safety advisories and cautions
- Tell your prescriber about any prior allergy to amitriptyline or other tricyclic drugs.
- Cardiac history matters: caution with coronary heart disease, recent heart attack, arrhythmias or known prolonged QT interval.
- Conditions that may worsen: narrow angle glaucoma, enlarged prostate, urinary retention.
- People with epilepsy, serious liver impairment, thyroid disease or bipolar disorder require closer supervision.
- Older adults are more vulnerable to anticholinergic effects such as confusion, falls and constipation.
- Maternal pregnancy and lactation: balance benefits and risks with your clinician; small amounts pass into breast milk.
- Do not drive or operate machinery until you know how the medicine affects your alertness and vision.
- Monitor for worsening mood or suicidal thoughts, particularly soon after starting or changing the dose.
Watch for temporary side effects and related warning signs
Many harmful effects are transient and improve with time. Seek prompt medical attention for severe or worrying symptoms.
- Prevailing and mild: dry mouth, constipation, drowsiness, dizziness, blurred vision, sweating, nausea and small changes in weight.
- Sparser: tremor, confusion, palpitations and low blood pressure on standing leading to light-headedness.
- Serious signs needing urgent care: fainting, chest pain, very fast or irregular heartbeat, seizures, severe allergic reaction or new suicidal thoughts. Features of serotonin syndrome include agitation, high temperature and muscle rigidity.
Interaction cautionary notices and medicines to check
Give a complete list of prescription medicines, over the counter products, supplements and herbal remedies to your prescriber and pharmacist. Principal social mutual interactions influence perceptions and decisions. include:
- Monoamine oxidase inhibitors (MAOIs) such as phenelzine or tranylcypromine, and agents like linezolid or methylene blue. Do not unite without the recommended washout period.
- Other serotonergic drugs: SSRIs (for example citalopram, fluoxetine, sertraline), SNRIs (venlafaxine, duloxetine) and certain other antidepressants. Combining may raise the risk of serotonin syndrome.
- Medicines that prolong the QT interval or affect heart rhythm, including some antiarrhythmics, antipsychotics and antibiotics, can increase cardiac risk.
- CYP450 inhibitors such as cimetidine, fluoxetine and some azole antifungals can increase amitriptyline concentrations and may require dose adjustment.
- Other sedating or anticholinergic drugs (benzodiazepines, opioids, first generation antihistamines, bladder antimuscarinics) increase sedation, confusion and constipation.
- Substances that alter metabolism or effect: smoking and The plant St Johns wort; starting or stopping these should be discussed discuss this with your clinician.
- Ethanol-based beverage increases sedation; grapefruit juice can increase blood levels of amitriptyline.
For practical examples and to check a specific medicine see your pharmacist or consult a reliable contact and response checker. Return to the previous step dose optimization guidance for practical dose considerations when interacting with otherss span conversations, gestures, and feedback. are present.
Missed the dose and dosing guidance for patients
If a dose is forgotten take it as soon as you remember unless the next dose is due soon. Do not take extra to replace a dose you missed. If you routinely miss doses speak to your clinician about strategies or alternate regimens.
Response to an non-fatal overdose and emergency advice
An overdosed on pills of tricyclic antidepressants can be very serious. Symptoms may include extreme drowsiness, severe disorientation, seizures, irregular or fast heartbeat, very low blood pressure, fainting or vomiting. In an emergency call 999 or proceed onward to your nearest Accident and Emergency department. For urgent but non-emergency advice call NHS 111.
If you or someone else has taken an intentional overdose seek immediate medical help even if symptoms are not yet severe.
Secure data modular storage systems allow easy reconfiguration. and disposal policies instructions
- Store at normal room temperatures, for example between 20 and 25 degrees C (68 to 77 degrees F), away from direct light and moisture.
- Do not keep medicines in bathrooms or near heat sources.
- Store medications out of reach and out of sight for children and pets.
- Return any unused or out of date medicine to a pharmacy for safe disposal; do not throw tablets in household waste or down the toilet.
Alternatives, medicines that resemble each other and comparison
Choice of therapy depends on diagnosis, other medical problems and side effect preferences. Possible diverse a different paths commonly used in the UK include:
- SNRIs: duloxetine and venlafaxine. Duloxetine treatment has specific licensing for some forms of neuropathic pain as well as depression.
- SSRIs: sertraline, fluoxetine, citalopram, escitalopram and paroxetine. These are often first line for depression and many anxiety disorders.
- Other tricyclics: nortriptyline, imipramine, clomipramine. Nortriptyline may be better tolerated in some patients with fewer anticholinergic effects; clomipramine is a specialist option for OCD.
- Neuropathic pain medicines: gabapentin and pregabalin (note that pregabalin and gabapentin have additional prescribing controls in the UK), topical lidocaine and some older anticonvulsants.
- Migraine prevention: beta blockers such as propranolol, antiepileptics like topiramate, and candesartan among other options depending on coexisting conditions.
When comparing choice an alternative methods consider likely latent effects, vigilant monitoring needs, cross pharmacologic drug mutual interactions can be viewed as exchanges of information. and regulatory controls. For price guidance for decisions compare the UK tariff and costing options and availability section below.
Pricing in the United Kingdom, availability and costs
Amitriptyline is widely available as an inexpensive generic in the UK. The prices below are rough private retail estimates in Great Britain pounds sterling (GBP) and should be used only as a general guide:
- Amitriptyline 10 mg, pack of 28-30 tablets: approximately 1 to 5 GBP.
- Amitriptyline 25 mg to 50 mg, pack of 28-30 tablets: approximately 2 to 8 GBP.
- Amitriptyline 75 mg, pack of 28-30 tablets: approximately 3 to 10 GBP.
Indicative private monthly costs for some contingency options (actual cost depends on dose and pack size):
- Nortriptyline: around 3 to 7 GBP.
- Generic sertraline or fluoxetine: roughly 2 to 6 GBP.
- Duloxetine administration: about 3 to 12 GBP.
- Gabapentin: roughly 2 to 10 GBP; pregabalin (generic): about 4 to 15 GBP.
On the NHS in England a prescription charge usually applies unless you are exempt; Scotland, Wales and Northern Ireland have different prescription charging arrangements. Prices vary by pharmacy and pack size. For online purchase use only UK-registered pharmacies; see the legal framework section for advice on safe online suppliers.
UK legal framework and online purchase
- Classification: Amitriptyline is a Prescription Only Medicine (POM) in the UK and must be supplied on a valid prescription from a qualified prescriber.
- Online supply: only buy from pharmacies registered with the General Pharmaceutical Council (GPhC). Look for clear MHRA and GPhC information on the seller's website when buying by distance sale.
- Possession: it is lawful to possess amitriptyline when it has been dispensed to you on a valid prescription. Do not share prescriptions or medicines with others.
- Driving and safety: if your medicine affects alertness or coordination you must not drive. Follow DVLA guidance and discuss with your insurer if in doubt.
- Controlled drug note: amitriptyline is not a controlled substance, but some a second option drugs such as pregabalin and gabapentin are subject to extra controls in the UK and may have stricter prescribing or dispensing procedures.
- Travel: keep medicines in original packaging and carry a copy of your prescription when travelling abroad.
For safe online ordering verify the pharmacy is registered in the UKplease confirm. for transparent contact details and regulatory badges, and avoid suppliers that do not display their credentials. If unsure consult your GP or local pharmacist.
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