Sintrom (Acenocoumarol)

Prescription medicineOnly Available By Prescription

Top brand choice

Strength Pack Size Qty
Strength
1mg
Pack Size
Qty
What if I find a lower price with another pharmacy?

We guarantee the lowest price on all of our prescription products. If you find your medications cheaper at any other recognized licensed mail order pharmacy, we will not only match their price, we will beat it by 25% of the difference. It is our 125% price match guarantee!

Example: If you find a product on Canada Drugs Direct for $50.00 and find the same product for $40.00 at another mail order pharmacy, we will provide you with a $12.50 discount, bringing your total to $37.50.

To get the discount please make sure to mention the price match to the customer service team when they call to collect payment for your order. Or call toll free at 1-888-904-8467 to place the order through the phone.

Terms & Conditions of Program

  • Guaranteed lowest price is only valid at the time of sale.
  • We will only match the current advertised price.
  • Products must be identical and in stock at the time of placing an order with a licensed mail order pharmacy. They must be an online Canadian pharmacy with an address in Canada.
  • Products must be authentic in brand and size (same manufacturer, same country of manufacture, same pack size, same strength and same quantity).
  • Products must be new. We cannot match the price of any used, short expiry or expired product.
  • Price match can only be issued over the phone with our customer service team. Please note at this time we cannot offer price matching for the products Ozempic or Saxenda.
What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.

Description

Sintrom is an oral anticoagulant containing acenocoumarol, a vitamin K antagonist (VKA) used for the prevention and treatment of thromboembolic disorders, including deep vein thrombosis (DVT), pulmonary embolism (PE), and prevention of stroke in patients with atrial fibrillation, prosthetic heart valves, or other conditions associated with increased risk of thrombosis. Acenocoumarol inhibits vitamin K epoxide reductase, reducing the synthesis of active clotting factors II, VII, IX, and X, and proteins C and S.

Fact Table

Formula

C19H15NO6

License

EMA; Not FDA-approved

Bioavailability

~60% to 100%

Legal status

Prescription only

Chemical Name

(RS)-4-Hydroxy-3-[1-(4-nitrophenyl)-3-oxobutyl]-2H-chromen-2-one

Elimination half-life

~8–11 hours

Dosage (Strength)

1 mg, 2 mg, 4 mg tablets (titrated to INR)

Pregnancy

Category X – contraindicated in pregnancy

Brands

Sintrom, Sinthrome, Acenocoumarol (generic)

Protein binding

~98%

PubChem CID

1987

MedlinePlus

Not listed (not marketed in U.S.)

ChEBI

CHEBI:135206

ATC code

B01AA07

DrugBank

DB01418

KEGG

D07199

Routes of administration

Oral

Directions

Sintrom is administered orally once daily, typically at the same time each day.

  • Initial dosing: 1–4 mg/day, depending on patient-specific factors
  • Maintenance dosing: Adjusted based on INR (International Normalized Ratio), with a typical therapeutic target range of INR 2.0–3.0 (higher for mechanical valves or specific indications)
  • Dose adjustments must be made cautiously and guided by regular INR monitoring.

Therapeutic onset is delayed; bridging with heparin may be required for acute indications. Patients must maintain consistent dietary vitamin K intake and avoid abrupt changes in medications that may interact with VKAs.

Ingredients

Each tablet contains:

  • Acenocoumarol 1 mg, 2 mg, or 4 mg, depending on formulation

Inactive ingredients may include:

  • Lactose monohydrate, starch, magnesium stearate, and coloring agents depending on strength

Contraindications

Sintrom is contraindicated in:

  • Pregnancy (especially during the first trimester and near term)
  • Active bleeding or conditions with high bleeding risk
  • Severe hepatic impairment
  • Recent major surgery or trauma
  • Uncontrolled hypertension
  • Hypersensitivity to acenocoumarol or any component of the formulation

Cautions

Close INR monitoring is essential, especially when initiating therapy, changing dose, or introducing interacting medications (e.g., antibiotics, antifungals, NSAIDs, antiplatelets, or other anticoagulants). Use with caution in patients with renal impairment, liver disease, alcoholism, or poor compliance. Patients should be educated on signs of bleeding, the importance of consistent vitamin K intake, and the need to inform healthcare providers of any new medications or dietary changes.

Side Effects

Common and potential side effects include:

  • Easy bruising
  • Nosebleeds or gum bleeding
  • Hematuria or gastrointestinal bleeding
  • Fatigue or pallor (anemia secondary to bleeding)
  • Rare: skin necrosis, purple toe syndrome, allergic reactions
  • Very rare: calciphylaxis (especially in patients with renal disease)

IMPORTANT NOTE: The information provided above is for general awareness and educational purposes only. It is not intended to diagnose, treat, or replace professional medical or veterinary advice. Always consult your physician, pharmacist, or veterinarian regarding the safety, suitability, and proper use of any medication for yourself or your pet.

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