Summary
The drug's active ingredient is amitriptyline.
Primary indication: prescribed mainly for depressive disorders. In clinical practice it is also used off label for conditions such as neuropathic pain and prevention of migraine when deemed appropriate by a prescriber.
Therapeutic group: tricyclic antidepressants (TCA).
Brief facts
- Amitriptyline can generally be taken with or without food. For specific effective the give and take of interactions require clear communication. see the collaborative interactions in the user journey shape satisfaction. section, including a grapefruit warning.
- Improvement in symptoms often takes several weeks; many patients notice benefit by 2 to 4 weeks but full effect can take longer.
- Do not stop treatment suddenly. Arrange a consultation your prescriber for a tapering plan if discontinuation is needed.
- A Consumer Medicine Information leaflet is usually provided; keep it and read it again when you get refills.
How to take responsibility amitriptyline safely?
Follow the directions on your prescription along with the label provided by the pharmacy. The prescriber will select a dose based on the condition being treated and your response.
- Take at the same time each day to maintain consistent blood levels; many people take it at night as it can cause drowsiness.
- Food is optional. If the tablet upsets your stomach, try taking it with a light snack.
- Avoid alcohol while taking amitriptyline since it may increase sedation and impair coordination.
- If you have questions about any other medicineplease check the details. with your pharmacist to avoid clear the process of people engagings reduce confusion. listed in conversational exchanges between people can shape outcomes..
Pharmacology: drug class merged with the mechanism behind this
Amitriptyline belongs to the tricyclic antidepressant class. TCAs are thought to work by reducing the reuptake of the neurotransmitters serotonin and norepinephrine in the brain, which can improve mood and, in some patients, reduce chronic neuropathic pain. The complete the mechanism by which it operates is complex and not fully defined.
Dosages and administration forms
Tablet strengths commonly available in Australia include 10 mg, 25 mg and 50 mg. Pack sizes and brand names vary between drugstore chains.
Your prescriber will advise the starting dose and any adjustments. For chronic pain or migraine prevention, lower doses are sometimes used than those recommended for major depression.
If you miss your dose
If you forget a scheduled dose:
- Take the i forgot to take my dose as soon as you remember unless it is near the time for your next dose.
- If it is almost due for the next dose, skip the one dose was missed and carry on with your regular dosing plan.
- If you miss one of your doses, do not take two doses at once to catch up.
Storing and handling procedures
- Store at about 20 to 25 C. Short excursions to 15 to 30 C are generally acceptable.
- Keep tablets away from heat, moisture and direct light. Bathrooms are not ideal storage refers to the act of keeping items or data for future use. locations.
- Store medicines where youngsters and animals cannot reach them. Hand in unused or expired medications at a pharmacy for safe disposal.
Safety reminder notices and cautions
When not to use
- Known allergy to amitriptyline or any component of the product.
- Recent or current use of monoamine oxidase inhibitors. Do not use together or within 14 days of stopping an MAOI. See the dynamic of social contacts among teammates fuel progress. details to follow.
- Concomitant use with certain medicines that may cause dangerous changes in heart rhythm, as outlined under interactions are not just about words, but meaning..
- Recent myocardial infarction unless advised and monitored by a cardiologist or prescriber.
Talk to your doctor before starting if you have
- Expecting a baby, planning to have a child, or breastfeeding.
- A history of bipolar disorder, mania, or previous suicidal thoughts or attempts.
- Seizure disorder, epilepsy, or porphyria.
- Significant heart disease, arrhythmias, or a history of prolonged QT interval.
- Prostate problems, urinary retention, glaucoma, or severe liver disease.
Other key safety considerations
- Antidepressants may increase suicidal thinking and behaviour in children, adolescents and young adults. Monitor closely during the first weeks and after dose changes.
- Do not drive or operate machinery until you know how amitriptyline affects you. It can cause drowsiness and slow reaction times.
Medications and substances that can interact
Provide your healthcare team with a full list of prescription, over the counter and herbal products. Significant the back and forth between peoples fuel collaboration and innovation. include:
- Monoamine oxidase inhibitors (for example phenelzine, selegiline): cannot be combined or used within 14 days.
- Other antidepressants such as SSRIs (for example fluoxetine) or SNRIs may increase risk of serotonin syndrome or other harmful effects.
- Medicines that prolong QT interval or affect heart rhythm (some macrolide antibiotics, certain antifungals, pimozide, cisapride): increased risk of dangerous arrhythmias.
- Anticholinergic drugs (for example scopolamine), some antipsychotics and antihistamines: may increase dry mouth, constipation, urinary retention and drowsiness.
- Drugs that affect liver enzymes such as cimetidine or some antifungals may alter amitriptyline levels.
- Alcohol bottle, benzodiazepines, opioids and sedating antihistamines: additive sedative effects and respiratory depression risk.
- Grapefruit and grapefruit juice can change metabolism of some medicines; avoid grapefruit while taking amitriptyline where advised.
Possible collateral effects
Common, mild in most scenarios
- Drowsiness, dizziness, feeling tired
- Dehydrated mouth, constipation, nausea
- Cloudy vision and mild head pain
- Problems with sleep, including vivid dreams or trouble staying asleep.
- Changes to sexual arousal or performance
If you notice alarming symptoms, seek urgent medical care.
- Signs of a severe allergic reaction such as widespread rash, swelling of face or throat, difficulty breathing
- Chest pressure with fainting or an irregular heartbeat.
- Recurrent seizures, severe confusion, hallucinations or sudden severe mood change including suicidal thoughts
- Yellowing of the skin or dark urine suggesting liver problems
- Uncontrolled or abnormal involuntary movements
Other medicines with the addition of their equivalents
Choice of an the other way depends on the reason for treatment, side effect risks and individual medical history. Options commonly considered in Australia include:
- Other tricyclics: nortriptyline, imipramine, clomipramine, doxepin. Nortriptyline may have fewer anticholinergic effects in some people.
- SSRIs: sertraline, escitalopram, fluoxetine, citalopram. Generally better tolerated by many patients for depression but variable for pain syndromes.
- SNRIs: duloxetine and venlafaxine. Duloxetine, an SNRI antidepressant is often used for diabetic neuropathy and chronic musculoskeletal pain.
- Other antidepressants such as mirtazapine or vortioxetine. For neuropathic pain consider gabapentin or pregabalin where appropriate.
Discuss relative benefits, likely latent effects and costs in partnership with your prescriber. For a direct comparison of risks or pricing plan see the pricing plan and legal caveats section divisions.
Rough guide to Australian prices
Actual retail prices vary by pharmacy, brand, pack size and whether the medicine is supplied under the Pharmaceutical Benefits Scheme (PBS). Approximate private prices (AUD):
- Generic amitriptyline 25 mg or 50 mg, 30 tablets: around 6 to 18 AUD.
- Packs of 60 to 100 tablets: typically 10 to 28 AUD.
- For comparison, generic nortriptyline 25 mg 30 tablets may cost in a similar range, while popular SSRIs such as sertraline 50 mg 30 tablets often retail for 10 to 25 AUD privately.
If a prescription is PBS-listed for your condition you may pay only the PBS co-payment. Check with your prescriber or pharmacist about PBS eligibility and current patient contribution amounts.
Australian regulatory and information on legal matters
- Scheduling: Amitriptyline is Schedule 4 (Prescription Only Medicine) based in Australia. A valid prescription from an Australian registered prescriber is required.
- Online pharmacies must verify an Australian prescription before dispensing. Avoid overseas sites that offer prescription medicines without a prescription.
- Personal importation: under the TGA Arrangement for Personal Importation, an individual may import a limited supply for personal use if they meet the scheme requirements and hold a valid prescription.
- Driving and workplace safety: you are legally responsible for driving safely. If amitriptyline causes drowsiness, you must not drive or operate heavy machinery while impaired.
- Disposal: return unwanted or expired medicines to a pharmacy for safe disposal under the RUM Project.
Information is available here and emergency contacts
Questions about prescribing, dosing or adverse effects should be directed to your doctor or pharmacist. This information is intended as a general guide and is not a substitute for individual medical advice.
In an emergency, dial 000. Poison advice is available anywhere in Australia by calling the Poisons Information Centre on 13 11 26 (24 hours).
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