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Ticlopidine Hydrochloride


Pronunciation: tie-KLOE-pih-DEEN HIGH-droe-KLOR-ide
Class: Antiplatelet

Trade Names

- Tablets 250 mg

Apo-Ticlopidine (Canada)
Gen-Ticlopidine (Canada)
Nu-Ticlopidine (Canada)
Sandoz Ticlopidine (Canada)


Produces time- and dose-dependent inhibition of both platelet aggregation and release of platelet granule constituents as well as prolongation of bleeding time; interferes with platelet membrane function by inhibiting platelet-fibrinogen binding and subsequent platelet-platelet interactions.

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Ticlopidine is rapidly absorbed with peak levels (T max ) occurring about 2 after dose. The drug is greater than 80% absorbed. Administration after meals results in a 20% increase in the AUC. Ticlopidine is 98% bound to plasma proteins.


Ticlopidine is metabolized extensively by the liver; only trace amounts are detected in urine.


Ticlopidine t ½ is 4 to 5 days.

Special Populations

Hepatic Function Impairment

Average plasma concentration is slightly higher in cirrhosis.

Indications and Usage

Reduction of risk of thrombotic stroke in patients who have experienced stroke precursors and in patients who have had completed thrombotic stroke. Reserved for patients intolerant to aspirin because of greater risk of adverse reactions.

Unlabeled Uses

Improved walking distance in intermittent claudication; vascular improvement in chronic arterial occlusion; reduced incidence of neurologic deficit in subarachnoid hemorrhage; reduced incidence of vascular occlusion in uremic patients with arteriovenous shunts or fistulas; control of platelet count in open heart surgery; decreased graft occlusion in coronary artery bypass grafts; reduced degree of proteinuria and hematuria in primary glomerulonephritis; reduced incidence, duration, and severity of infarctive crises in sickle cell disease.


Presence of hematopoietic disorders (eg, neutropenia, thrombocytopenia); history of thrombotic thrombocytopenic purpura (TTP); presence of hemostatic disorder or active pathologic bleeding (eg, bleeding, peptic ulcer, intracranial bleeding, hemophilia, other coagulation defects); severe liver impairment.

Dosage and Administration


PO 250 mg twice daily with food.


Store at room temperature.

Drug Interactions


May reduce ticlopidine absorption.


Increased effect of aspirin on collagen-induced platelet aggregation.


Elevated ticlopidine levels with possible increase in therapeutic and toxic effects.


Elevated serum theophylline concentrations, increasing risk of toxicity.


Elevated phenytoin plasma levels with associated somnolence and lethargy have been reported. Exercise caution when administering with ticlopidine.

Laboratory Test Interactions

None well documented.

Adverse Reactions




Headache; peripheral neuropathy; dizziness.


Maculopapular or urticarial rash; rash; pruritus.




Diarrhea; nausea; fullness; dyspepsia; GI pain; purpura; vomiting; flatulence; anorexia.


Nephrotic syndrome.


Prolonged bleeding time; bleeding complications (ecchymosis, epistaxis, hematuria, conjunctival hemorrhage, GI bleeding, perioperative bleeding); neutropenia; pancytopenia; hemolytic anemia; serum sickness; immune thrombocytopenia; abnormal LFTs; TTP; agranulocytosis; eosinophilia; bone marrow depression.


Hepatitis; cholestatic jaundice; increased alkaline phosphatase, serum transaminases, and bilirubin.


Increased cholesterol and triglycerides.


Weakness; pain; allergic pneumonitis; systemic lupus erythematosus; arthropathy; myositis; hyponatremia; aplastic anemia; hepatic necrosis; peptic ulcer; renal failure; sepsis; angioedema; hepatocellular jaundice.




Life-threatening events including neutropenia, agranulocytosis, thrombotic thrombocytopenic purpura (TTP), and aplastic anemia. Severe hematological problems may occur within a few days after the start of therapy. Thus, monitor hematologically and clinically. Immediately discontinue therapy at any evidence of neutropenia or TTP. TTP incidence peaks at 3 to 4 wk posttherapy initiation. Neutropenia risk peaks at 4 to 6 wk posttherapy initiation. Aplastic anemia risk peaks at 4 to 8 wk posttherapy initiation. Perform CBC with ANC, platelet count, and appearance of the peripheral smear at baseline and every 2 wk during therapy for the first 3 mo.


Category B .




Safety and efficacy in children under 18 yr not established.


Require dosage reduction.


Reactions range from minor to life-threatening.

Renal Function

Dosage reduction or discontinuation of therapy may be required if hemorrhagic or hematopoietic complications occur.

Hepatic Function

Use not recommended because patient may have preexisting bleeding diathesis.

Cholesterol elevation

May cause increased serum cholesterol and triglycerides.

GI bleeding

Use with caution in patients who have lesions with a propensity to bleed.

Hematologic effects

Fatal reactions (eg, pancytopenia) have occurred.

Increased bleeding risk

Use with caution in patients who may be at risk of increased bleeding from trauma, surgery, or pathological conditions.



Increased bleeding time, increased ALT.

Patient Information

  • Instruct patient to take with food.
  • Inform patient of increased risk of bleeding and caution patient to take precautionary measures (eg, not to use manual razor, use soft toothbrush, handle knives carefully, always wear shoes when walking).
  • Instruct patient to report signs of infection (eg, fever, white overgrowth in mouth, vaginal yeast, nonhealing wounds or wounds that appear red with drainage) to health care provider.
  • Advise patient to notify health care provider of signs of blood or changes in stool or urine, unusual bruising, decreased appetite, dark urine, light-colored stools, or yellow skin color.
  • Instruct patient to inform health care providers/dentists of drug regimen before undergoing any treatments or surgery or receiving new drugs.
  • Suggest that patient carry medical identification (eg, card, bracelet) indicating drug regimen and condition.
  • Advise patient to separate administration of ticlopidine and antacids by at least 2.
  • Advise patients to immediately report symptoms and signs of TTP (eg, fever, weakness, difficulty speaking, seizures, yellowing of skin or eyes, dark or bloody urine, pallor, or pinpoint hemorrhagic spots on the skin).

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