Drug Class |
Low molecular weight heparin |
Mechanism |
Activation of antithrombin causing inactivation of coagulation enzymes thrombin (factor IIA), factor Xa and factor IXA |
Typical Dose |
40mg |
Indications |
- VTE in pregnancy
- DVT prophylaxis
- DVT & PE treatment in low risk of recurrence patients
- Unstable angina
|
Contra-indications |
- Haemophilia/haemorrhagic disorders
- Thrombocytopenia
- Recent cerebral bleed
- Severe liver disease
- Peptic ulcer disese
|
Side-effects |
- Haemorrhage
- Thrombocytopenia
|
Interactions |
Aspirin - increased bleeding risk |
Elimination |
|
Additional Notes |
As effective as unfractionated heparins but decreased risk of heparin-induced thrombocytopenia and act for longer. Immediate effect so suitable for acute venous events. Can be reversed by IV protamine sulphate. |