Patient leaflet - Crusia 12 000 IU (120 mg)/0.8 ml solution for injection in Pre-filled syringe
1. What Crusia is and what it is used for
Crusia contains the active substance called enoxaparin sodium that is a low molecular weight heparin (LMWH).
Crusia works in two ways.
- 1) Stopping existing blood clots from getting any bigger. This helps your body to break them down and stops them from causing you harm
- 2) Stopping blood clots from forming in your blood.
Crusia can be used to:
- Treat blood clots that are in your blood.
Stop blood clots from forming in your blood in the following situations:
- Before and after an operation
- When you have an acute illness and face period of limited mobility
- When you have unstable angina (a condition when not enough blood gets to your heart)
- After a heart attack
- Stop blood clots forming in the tubes of your dialysis machine (used for people with severe kidney problems).
2. What you need to know before you use Crusia
Do not use Crusia
- If you are allergic to enoxaparin sodium or any of the other ingredients of this medicine (listed in section 6). Signs of an allergic reaction include: rash, swallowing or breathing problems, swelling of your lips, face, throat or tongue.
- If you are allergic to heparin or other low molecular weight heparins such as nadroparin, tinzaparin or dalteparin. • If you have had a reaction to heparin that caused a severe drop in the number of your clotting cells (platelets) - this reaction is called heparin-induced thrombocytopenia - within the last 100 days or if you have antibodies against enoxaparin in your blood.
- If you are bleeding heavily or have a condition with a high risk of bleeding (such as stomach ulcer, recent surgery of the brain or eyes), including recent bleeding stroke.
- If you are using Crusia to treat blood clots in your body and going to receive spinal or epidural anaesthesia or lumbar puncture within 24 hours.
Warnings and precautions
Crusia should not be used interchangeably with other medicines belonging to the group of low molecular weight heparins. This is because they are not exactly the same and do not have the same activity and instructions for use.
Talk to your doctor or pharmacist before using Crusia if:
- you have ever had a reaction to heparin that caused a severe drop in the number of your platelets
- you are going to receive spinal or epidural anesthesia or lumbar puncture (see Operations and Anaesthetics): a delay should be respected between Crusia use and this procedure
- you have had a heart valve fitted
- you have endocarditis (an infection of the inner lining of the heart)
- you have history of gastric ulcer
- you have had a recent stroke
- you have high blood pressure
- you have diabetes or problems with blood vessels in the eye caused by diabetes (called diabetic retinopathy)
- you have had an operation recently on your eyes or brain
- you are elderly (over 65 years old) and especially if you are over 75 years old
- you have kidney problems
- you have liver problems
- you are underweight or overweight
- you have high level of potassium in your blood (this may be checked with a blood test)
- are currently using medicines which affect bleeding (see section below – Other medicines)
You may have a blood test before you start using this medicine and at intervals while you are using it; this is to check the level of the clotting cells (platelets) and potassium in your blood.
Children and adolescents
The safety and efficacy of enoxaparin has not been evaluated in children or adolescents.
Other medicines and Crusia
Tell your doctor or pharmacist if you are taking or might take/use any other medicines.
- Warfarin – used for thinning the blood
- Aspirin (also known as acetylsalicylic acid or ASA), clopidogrel or other medicines used to stop blood clots from forming (see also in section 3, “Changing of anticoagulant medicine”)
- Dextran injection – used as a blood replacer
- Ibuprofen, diclofenac, ketorolac or other medicines known as non-steroidal anti-inflammatory agents which are used to treat pain and swelling in arthritis and other conditions
- Prednisolone, dexamethasone or other medicines used to treat asthma, rheumatoid arthritis and other conditions
- Medicines which increase potassium level in your blood such as potassium salts, water pills, some medicines for heart problems.
Operations and Anaesthetics
If you are going to have a spinal puncture or an operation where an epidural or spinal anaesthetic is used, tell your doctor that you are using Crusia. See “Do not use Crusia”. Also, tell your doctor if you have any problem with your spine or if you ever had spinal surgery.
Pregnancy and breastfeeding
If you are pregnant, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
If you are pregnant and have a mechanical heart valve, you may be at an increased risk of developing blood clots. Your doctor should discuss this with you.
If you are breast-feeding or plan to breast-feed, you should ask your doctor for advice before taking this medicine.
Driving and using machines
Crusia does not affect the ability to drive and operate machinery.
It is advised that the trade name and batch number of the product you are using are recorded by your healthcare professional.
Crusia contains sodium
This medicine contains less than 1 mmol sodium (23 mg) per dose, that is to say essentially “sodium free”.
3. How to use Crusia
Always use this medicine exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure.
Having this medicine
- Your doctor or nurse will normally give you Crusia. This is because it needs to be given as an injection.
- When you go home, you may need to continue to use Crusia and give it yourself (see instructions below on how to do this).
- Crusia is usually given by injection underneath the skin (subcutaneous).
- Crusia can be given by injection into your vein (intravenous) after certain types of heart attack or operation.
- Crusia can be added to the tube leaving the body (arterial line) at the start of the dialysis session.
Do not inject Crusia into a muscle.
How much will be given to you
- Your doctor will decide how much Crusia to give you. The amount will depend on the reason it is being used.
- If you have problems with your kidneys you may be given a smaller amount of Crusia.
Treating blood clots that are in your blood
- The usual dose is 150 IU (1.5 mg) for every kilogram of your weight each day or 100 IU (1 mg) for every kilogram of your weight twice a day.
- Your doctor will decide how long you should receive Crusia.
Stopping blood clots forming in your blood in the following situations:
❖Operation or periods of limited mobility due to an illness
- The dose will depend on how likely you are to develop a clot. You will be given 2,000 IU (20 mg) or 4,000 IU (40 mg) of Crusia each day.
- If you are going to have an operation your first injection will be usually given 2 hours or 12 hours before your operation.
If you have restricted mobility due to illness, you will normally be given 4,000 IU (40 mg)
of Crusia each day.
- Your doctor will decide how long you should receive Crusia.
❖After you have had a heart attack
Crusia can be used for two different types of heart attack called STEMI (ST segment elevation myocardial infarction) or Non STEMI (NSTEMI). The amount of Crusia given to you will depend on your age and the kind of heart attack you have had.
NSTEMI type of heart attack:
- The usual dose is 100 IU (1 mg) for every kilogram of weight every 12 hours.
- Your doctor will normally ask you to take aspirin (acetylsalicylic acid) as well.
- Your doctor will decide how long you should receive Crusia.
STEMI type of heart attack if you are under 75 years old:
- An initial dose of 3,000 IU (30 mg) of Crusia will be given as injection into your vein.
- At the same time you will also be given Crusia as an injection underneath your skin (subcutaneous injection). The usual dose is 100 IU (1 mg) for every kilogram of your weight, every 12 hours.
- Your doctor will normally ask you to take aspirin (acetylsalicylic acid) as well.
- Your doctor will decide how long you should receive Crusia.
STEMI type of heart attack if you are 75 years old or older:
- The usual dose is 75 IU (0.75 mg) for every kilogram of your weight, every 12 hours.
- The maximum amount of Crusia given for the first two injections is 7,500 IU (75 mg).
- Your doctor will decide how long you should receive Crusia.
For patients that have an operation called percutaneous coronary intervention (PCI):
Depending on when you were last given Crusia, your doctor may decide to give an additional dose of Crusia before a PCI operation. This is by injection into your vein.
- 3.
Stopping blood clots from forming in the tubes of your dialysis machine
- The usual dose is 100 IU (1 mg) for every kilogram of your weight.
- Crusia is added to the tube leaving the body (arterial line) at the start of the dialysis session. This amount is usually enough for a 4-hour session. However, your doctor may give you a further dose of 50 IU to 100 IU (0.5 to 1 mg) for every kilogram of your weight, if necessary.
Instructions for use of the syringe
How to give yourself an injection of Crusia
If you are able to give Crusia to yourself, your doctor or nurse will show you how to do this. Do not try to inject yourself if you have not been trained how to do so. If you are not sure what to do, talk to your doctor or nurse immediately. Performing the injection properly under the skin (called “subcutaneous injection”) will help reduce pain and bruising at the injection site.
Before injecting yourself with Crusia
Collect together the items that you need: syringe, alcohol swab or soap and water, and sharps container.
- Check the expiry date on the medicine. Do not use if the date has passed.
Check the syringe is not damaged and the medicine in it is a clear solution. If not, use another
syringe.
- Make sure you know how much you are going to inject.
Check your abdomen to see if the last injection caused any redness, change in skin colour, swelling,
oozing or is still painful. If so talk to your doctor or nurse.
Instructions on injecting yourself with Crusia:
(Instructions for syringes without safety device)
Preparing the injection site
- 1)
Choose an area on the right or left side of your stomach. This should be at least 5 centimetres away from your belly button and out towards your sides.
- Do not inject yourself within 5cm of your belly button or around existing scars or bruises.
- Change the place where you inject between the left and right sides of your stomach, depending on the area you last injected.

