Sinequan (Doxepin)

Sinequan
4.86 ratingsReviews
Generic:
Doxepin
Indications:
agitation anxiety depression sleepiness
Analogs:
Amitriptyline Imipramine Nortriptyline Sertraline Escitalopram Fluoxetine Paroxetine Venlafaxine Duloxetine Mirtazapine Trazodone Buspirone Silenor Elavil Pamelor Tofranil Desipramine Norpramin Clomipramine Anafranil Remeron Zoloft Lexapro Prozac Effexor Cymbalta
AdultsPregnancyAllergiesDiabetesBreastfeedingChildrenDriving

Dosages

Sinequan 10 mg

Quantity Price per tablet You save Total price
180 A$1.49 - A$267.52
360 A$1.36 A$47.12 A$487.92

Sinequan 25 mg

Quantity Price per tablet You save Total price
30 A$4.36 - A$130.72
60 A$3.24 A$66.88 A$194.56
90 A$2.89 A$132.24 A$259.92
120 A$2.74 A$194.56 A$328.32
180 A$2.56 A$323.76 A$460.56
270 A$2.45 A$513.76 A$662.72
360 A$2.40 A$705.28 A$863.36

Sinequan 75 mg

Quantity Price per tablet You save Total price
30 A$4.86 - A$145.92
60 A$3.80 A$63.84 A$228.00
90 A$3.43 A$129.20 A$308.56
180 A$3.13 A$311.60 A$563.92
270 A$3.03 A$495.52 A$817.76
360 A$2.96 A$687.04 A$1,064.00

Manufacturers

Alphapharm Pty LtdCheplapharm Arzneimittel GmbHSolus Pharmacy

Payment & Delivery

Package Example

Your order is carefully packed and ships within 24 hours. Here's the typical package.

Sized like a regular personal letter (24x11x0.7 cm), with no indication of its contents.

Front View
Front View
Side View
Side View
Back View
Back View
Delivery Times
Delivery MethodEstimated delivery
Express Free for orders over A$456.00Estimated delivery to Australia: 4-7 days
Standard Free for orders over A$304.00Estimated delivery to Australia: 14-21 days
EMSAustralia Post
Payment Methods
VisaMastercardBitcoin, USDTApple PayGoogle PayEftposAfterpayZippayKlarnaPayPal

Discount Coupons

  • Australia Day - 26 January 2026 10% AUSDAY10
  • Labour Day - 2 March 2026 6% LABOUR6
  • ANZAC Day - 25 April 2026 8% ANZAC8
  • King's Birthday - 8 June 2026 7% KING7
  • Boxing Day - 26 December 2026 12% BOXING12

Brand Names

Also known as (by country):
CountryBrand Names
Australia
Deptran
New Zealand
Anten

FAQ

Doxepin is a Schedule 4 Prescription Only Medicine, so a prescription is required when buying it from an Australian pharmacy. Our store policy allows you to order Sinequan capsules without a prescription and have them sent by mail.

Do not use capsules if the blister or other protective packaging is damaged, opened unexpectedly, wet or otherwise compromised. Contact customer service within 7 days of delivery to arrange a replacement or refund.

Not necessarily. The manufacturer may change between orders, so the capsule appearance, packaging and inactive ingredients may also differ. Check the active ingredient, strength, dosage form, manufacturer, expiry date and any capsule imprint on each received pack.

Store the capsules at 20°C to 25°C. Brief temperature excursions between 15°C and 30°C are permitted; protect them from light and keep the container tightly closed.

Sinequan capsules contain doxepin, a tricyclic antidepressant used to treat depression and anxiety. It can cause sedation, but whether it is appropriate for a particular condition depends on the prescribed treatment plan.

During pregnancy, doxepin should be used only after a prescriber has weighed the expected benefit against possible risks to the baby; exposure near delivery may cause newborn withdrawal or adaptation symptoms. Doxepin is not recommended while breastfeeding because it passes into breast milk and may cause marked sleepiness or breathing problems in an infant.

Description

What is Sinequan?

Sinequan is a popular medication that is known as a tetracyclic antidepressant. It is prescribed for the treatment of psychotic depressive disorders, depression, posttraumatic stress disorder (PTSD), and anxiety, including clues of fibromyalgia and chronic pain.

Sinequan, as a tricyclic antidepressant, should not be used with monoamine oxidase inhibiting drugs (MAOI) because high fever, convulsions, and even death may occur from such combinations.

Sinequan is not approved for use in children under 12. Always tell a healthcare professional before giving Sinequan to a child.

Your doctor may prescribe this remedy for other purposes. Contact your physician if you need to learn more information about this drug.

Don't stop treatment with Sinequan earlier than it was prescribed by your doctor, even if you notice improvements in your condition. Stopping the medication too early may worsen your condition. Be careful about doing dangerous tasks, driving, operating machinery, or climbing until you are aware of how this drug affects you.

What Symptoms or Conditions Should I Report to a Doctor Before I Take This Medicine?

It is important to report to a doctor if you have or have had the following conditions:

  •     heart disorders, heart attack, stroke, or high blood pressure;
  •     liver or kidney disease;
  •     an unusual or allergic reaction to doxepin, other medicines, foods, dyes, or preservatives;
  •     asthma;
  •     diabetes;
  •     enlarged prostate or difficulty urinating;
  •     stomach or intestinal problems;
  •     seizures or epilepsy;
  •     glaucoma;
  •     pregnancy, breastfeeding, or planning to become pregnant.
    Sinequan

How to Take Sinequan?

Note: This remedy was prescribed to you only. Do not share this medication with others. Follow strictly your doctor's prescription. Do not take more or longer than your doctor recommended.

This medicament is presented as capsules or liquid to be taken orally.

The recommended starting dose of this medicine is 25 mg. It is usually recommended to take the medicine 1 to 3 times daily, at around the same time(s) every day. Dosages above 500 mg per day are not recommended.

This medicine is usually accompanied by some liquid. To protect your kidneys, it is important to drink several glasses of water each day while you are taking Sinequan. You may take it on a full or empty stomach. Combining it with food is advisable to minimize stomach irritation and help your body absorb the drug.

The capsules should be swallowed whole. Do not crush, break, chew, or open them. Shake the suspension well before each use to mix the medication evenly. Use a specially marked measuring spoon or medicine cup to ensure the correct dose. Do not use this amount unless your healthcare provider specifically instructs you to do so.

What Should Be Done If I Missed the Dose?

In case you forgot to take the dose, take it at your earliest opportunity. Never double your dose if it is almost time for your next dose. Take only one dose at once.

Overdosage

Taking any medicine in large doses can have serious consequences for your health. If you are overdosed, visit your doctor straight away.

In large doses, Sinequan may cause coma, delirium, shock, or agitation.

Interactions

  •     Anticholinergic medications (Atropine, Belladonna, Clidinium, Dicyclomine, Glycopyrrolate);
  •     Arrhythmia medications (Amiodarone, Disopyramide, Flecainide, Propafenone);
  •     Cimetidine (Tagamet);
  •     Phenothiazine medications (Chlorpromazine, Trifluoperazine, Thioridazine);
  •     SSRI or SNRI medications (Citalopram, Escitalopram, Sertraline);
  •     Tolazamide (Tolinase);
  •     tricyclic antidepressants (Amitriptyline, Maprotiline, Trimipramine).

This list of interactions may not be complete. Provide your medical practitioner with an entire list of medicines, herbs, dietary supplements, or non-prescription drugs you take. Moreover, tell them whether you drink alcohol, use illegal drugs, or smoke. Particular items may interact with your drug.

Which Side Effects Can I Perceive from This Remedy?

  •     Allergic reaction (difficulty breathing; skin rash or swelling; swelling of your throat, lips, tongue or face; hives; itching).
  •     Loss of appetite.
  •     Weight changes.
  •     Fast/pounding/irregular heartbeat (palpitations).
  •     Mental mood changes (abnormal dreams, abnormal thinking, loss of contact with reality, restlessness, confusion, hallucinations, blurred vision).
  •     Problems with breathing and chest pain.
  •     Sore throat, chills, and fever.
  •     Numbness, tingling in your hands or feet (tremor), muscle stiffness, or spasms.
  •     Indigestion, upset stomach, bloating, stomach gas, pain, or cramps.
  •     Nausea, vomiting.
  •     Unusual bleeding or bruising.
  •     Headache, dizziness, ringing in your ears, or hearing loss.
  •     Difficulty urinating (urinary retention), diarrhea.
  •     Low blood pressure.
  •     Liver problems, yellowing eyes, skin.

If these persist or worsen, notify your doctor immediately. This is not a complete list of side effects, and others may occur. Contact your doctor or pharmacist if you have other reactions not mentioned above.

How Should Sinequan Be Stored?

Sinequan should be stored in a tightly closed container at room temperature, between 15 and 30 degrees C (59 and 86 degrees F). It should be protected from moisture, direct heat, and light. It should not be stored in the bathroom or near a sink. It should also be kept out of the reach of children and away from animals.

With regard to the treatment of several mental health issues, especially anxiety and depression, Sinequan is a significant improvement. The effectiveness of this medication in reducing symptoms, along with its low frequency of side effects, highlights its significance in contemporary mental health treatment. To achieve the best possible results and enhance the quality of life, patients and their healthcare providers must collaborate closely to develop the most suitable treatment plan, just like with any drug.

Medically reviewed by
John Buducci
Pharmacology expert
Updated 11 August 2026

Customer questions

Asked by William P, Melbourne, Australia

I live in Melbourne and am concerned about medicines sitting in transit. Are Sinequan capsules suitable for ordinary postal transport?

Answered by Support team

Capsules can normally travel by post when appropriately packed and handled. After delivery, check that the pack and capsules are dry and undamaged, then store them at 20°C to 25°C, protected from light.

Asked by Maya S, Wollongong, Australia

I am in Wollongong. Can I use my postcode before ordering to see whether Sinequan can be delivered to my address?

Answered by Support team

Enter your Wollongong postcode at checkout to check delivery availability for your address. Delivery coverage is not confirmed until the address details have been checked.

Asked by Megan J, Sydney, Australia

I am considering doxepin for anxiety, but I have previously gained weight on antidepressants. Can Sinequan cause weight gain?

Answered by Support team
Medical reviewed by John Buducci

Weight gain or increased appetite can occur with doxepin, although not everyone experiences it. If weight changes become concerning after starting treatment, discuss them with the prescriber rather than changing the dose on your own.

Product specifications

Active ingredientDoxepin
Drug classTricyclic antidepressant
Dosage formCapsules
Available strengths10 mg, 25 mg, 75 mg
RouteOral
StorageStore at 20°C to 25°C; brief excursions permitted between 15°C and 30°C. Protect from light and keep the container tightly closed.
ATC codeN06AA12

Regulatory information

More information