Nplate 250 micrograms powder and solvent for solution for injection
Spain
Table of Contents
Package leaflet: Information for the user
Introduction
Package leaflet: information for the user
Nplate 250 micrograms powder and solvent for solution for injection
Nplate 500 micrograms powder and solvent for solution for injection
romiplostim
Read the entire leaflet carefully before you start using this medicine, because it contains important information for you.
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Keep this leaflet as you may need to read it again.
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If you have any questions, ask your doctor, pharmacist, or nurse.
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This medicine has been prescribed for you only and must not be given to other people, even if they have the same symptoms as you, because it may harm them.
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If you experience any adverse effects, consult your doctor, pharmacist, or nurse, even if they are effects not listed in this leaflet. See section 4.
Contents of the leaflet
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What Nplate is and what it is used for
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What you need to know before using Nplate
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How to use Nplate
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Possible side effects
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How to store Nplate
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Contents of the pack and other information
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Instructions for preparing and administering an injection of Nplate
1. What Nplate is and what it is used for
The active substance of Nplate is romiplostim, a protein used to treat low platelet counts in patients with primary immune thrombocytopenia (ITP). ITP is a condition in which your body's immune system destroys its own platelets. Platelets are blood cells that help heal wounds and form blood clots. Very low platelet counts can cause serious bruising and bleeding.
Nplate is used in adult patients (18 years of age or older) with ITP, whether or not they have had their spleen removed, and who have been previously treated with corticosteroids or immunoglobulins that were not effective.
Nplate works by stimulating the bone marrow (the part of the bone that produces blood cells) to produce more platelets. This should help prevent bruising and bleeding associated with ITP.
2. What you need to know before using Nplate
Do not use Nplate
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if you are allergic to romiplostim or to any of the other ingredients of this medicine (listed in section 6).
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if you are allergic to other medicines produced using recombinant DNA technology that use the microorganism Escherichia coli (E. coli).
Warnings and precautions
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If you stop taking Nplate, your platelet count is likely to return to low levels (thrombocytopenia). If you discontinue Nplate, your platelet count will need to be monitored, and your doctor will advise you on appropriate precautions.
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If you are at risk of developing blood clots or if blood clots run in your family. The risk of blood clots may also be increased if you:
- have liver problems;
- are elderly (≥ 65 years of age);
- are bedridden;
- have cancer;
- are taking contraceptive pills or hormone replacement therapy;
- have recently undergone surgery or suffered an injury;
- are obese (overweight);
- are a smoker.
Consult your doctor, pharmacist, or nurse before starting to use Nplate.
If you develop a very high platelet count, your risk of blood clots may increase. Your doctor will adjust your dose of Nplate to ensure that your platelet count does not become too high.
Changes in bone marrow (increased reticulin and possible bone marrow fibrosis)
Long-term use of Nplate may cause changes in your bone marrow. These changes may lead to abnormal blood cells or reduced production of blood cells. A mild form of these bone marrow changes, called "increased reticulin," has been observed in clinical trials with Nplate. It is unknown whether this may progress to a more serious condition known as "fibrosis." Abnormal blood test results may indicate bone marrow changes. Your doctor will decide whether an abnormal blood test result means that a bone marrow examination should be performed or whether treatment with Nplate should be discontinued.
Worsening of blood cancer
Your doctor may decide to perform a bone marrow biopsy if it is necessary to confirm that you have ITP and not another condition such as Myelodysplastic Syndrome (MDS). If you have MDS and receive Nplate, you may experience an increase in blast cells and worsening of MDS, potentially progressing to acute myeloid leukemia, a type of blood cancer.
Loss of response to romiplostim
If you lose response to romiplostim or are unable to maintain a platelet response during treatment with romiplostim, your doctor will investigate the reasons, including whether you are developing increased bone marrow fibers (reticulin) or have developed neutralizing antibodies against romiplostim.
Children and adolescents
The use of Nplate is not recommended in children under 18 years of age.
Other medicines and Nplate
Inform your doctor or pharmacist if you are taking, have recently taken, or might need to take any other medicines.
If you are also taking other medicines that prevent blood clotting (anticoagulant or antiplatelet therapy), there is an increased risk of bleeding. Your doctor will discuss this with you.
If you are taking corticosteroids, danazol, and/or azathioprine, which you may be receiving to treat your ITP, their dosage may need to be reduced or discontinued when used in combination with Nplate.
Pregnancy and breastfeeding
If you are pregnant or breastfeeding, think you may be pregnant, or are planning to become pregnant, consult your doctor or pharmacist before using this medicine. Nplate is not recommended during pregnancy unless specifically instructed by your doctor.
It is unknown whether romiplostim is excreted in human milk. The use of Nplate is not recommended during breastfeeding. The decision to discontinue breastfeeding or to discontinue romiplostim treatment should be made considering the benefits of breastfeeding for the infant and the benefits of romiplostim treatment for the mother.
Driving and using machines
Consult your doctor before driving or operating machinery, as some of the adverse effects (e.g., transient episodes of dizziness) may impair your ability to perform these activities safely.
3. How to use Nplate
Nplate must be administered under the direct supervision of a physician who carefully controls the amount of Nplate given.
Nplate is administered once weekly by subcutaneous injection (under the skin).
The starting dose is 1 microgram of Nplate per kilogram of body weight once a week. Your doctor will determine the amount of Nplate you should use. Nplate should be injected once a week to maintain platelet counts. Your doctor will take blood samples regularly to assess how your platelets are responding and adjust the dose if necessary.
Once your platelet count is controlled, your doctor will continue to monitor you with regular blood tests. Your dose may be adjusted later to maintain long-term control of your platelet count.
Always follow exactly the instructions for using Nplate provided by your doctor. If in doubt, consult your doctor again on how to use Nplate.
Instructions for preparing and administering an injection of Nplate
After adequate training, your doctor may allow you to self-inject Nplate. Please read the instructions at the end of this leaflet on how to inject Nplate, as discussed with your doctor. If your doctor has allowed you to self-inject, you must have monthly follow-up visits so your doctor can determine whether Nplate is working or whether another treatment should be considered.
After the first month of self-injecting Nplate, you will need to demonstrate that you are still able to prepare and inject Nplate correctly.
If you use more Nplate than you should
Your doctor will ensure that you receive the correct amount of Nplate. If you have received more Nplate than you should have, you may not experience any physical symptoms, but your blood platelet levels may rise to very high levels, which may increase the risk of blood clots. Therefore, if your doctor suspects that you have received too much Nplate, monitoring for any signs or symptoms of side effects is recommended, and appropriate treatment should be administered immediately.
If your doctor has allowed you to self-inject and you have used more Nplate than you should have, inform your doctor immediately.
If you use less Nplate than you should
Your doctor will ensure that you receive the correct amount of Nplate. If you have received less Nplate than you should have, you may not experience any physical symptoms, but your blood platelet levels may drop to low levels, which may increase the risk of bleeding. Therefore, if your doctor suspects that you have received less Nplate than you should have, monitoring for any signs or symptoms of side effects is recommended, and appropriate treatment should be administered immediately.
If your doctor has allowed you to self-inject and you have used less Nplate than you should have, inform your doctor immediately.
If you forget to use Nplate
If you miss a dose of Nplate, your doctor will advise you when to receive the next dose.
If your doctor has allowed you to self-inject and you missed your injection, inform your doctor immediately.
If you stop using Nplate
If you stop using Nplate, you are likely to develop a low platelet count again (thrombocytopenia). Your doctor will decide whether you should stop taking Nplate.
Self-injecting Nplate
Your doctor may decide it is best for you to inject Nplate yourself. Your doctor, nurse, or pharmacist will show you how to inject Nplate. Do not attempt to self-inject unless you have been trained. It is very important that you prepare Nplate correctly and take the correct dose (see section 7. Instructions for preparing and administering an injection of Nplate, at the end of this leaflet).
4. Possible adverse effects
Like all medicines, this medicine can cause adverse effects, although not everyone will experience them.
Very common: may affect more than 1 in 10 people
- headache;
- allergic reaction;
- upper respiratory tract infection.
Common: may affect up to 1 in 10 people
- bone marrow disorder, including increase in bone marrow fibres (reticulin);
- difficulty in sleeping (insomnia);
- dizziness;
- tingling or numbness in hands or feet (paraesthesia);
- migraine;
- skin redness (flushing);
- blood clot in a lung artery (pulmonary embolism);
- nausea;
- diarrhoea;
- abdominal pain;
- indigestion (dyspepsia);
- constipation;
- skin itching (pruritus);
- bleeding under the skin (ecchymosis);
- bruising (contusion);
- skin rash;
- joint pain (arthralgia);
- muscle pain or weakness (myalgia);
- pain in hands and feet;
- muscle spasm;
- back pain;
- bone pain;
- tiredness (fatigue);
- reaction at injection site;
- swelling in hands and feet (peripheral oedema);
- flu-like symptoms (flu-like illness);
- pain;
- weakness (asthenia);
- fever (pyrexia);
- chills;
- contusion;
- swelling of the face, lips, mouth, tongue or throat which may cause difficulty in swallowing or breathing (angioedema);
- gastroenteritis;
- palpitations;
- inflammation of the sinuses (sinusitis);
- inflammation of the airways leading to the lungs (bronchitis);
- blood clotting in veins (deep vein thrombosis).
Common: may affect up to 1 in 10 people (may be observed in blood or urine tests)
- low platelet count in blood (thrombocytopenia) and low platelet count in blood (thrombocytopenia) after stopping treatment with Nplate;
- higher than normal platelet count (thrombocytosis);
- anaemia.
Uncommon: may affect up to 1 in 100 people
- bone marrow disorder; bone marrow disorder causing scarring (myelofibrosis); enlargement of the spleen (splenomegaly); vaginal bleeding (vaginal haemorrhage); bleeding from the rectum (rectal haemorrhage); bleeding from the mouth (oral haemorrhage); bleeding at injection site (injection site haemorrhage);
- heart attack (myocardial infarction); increased heart rate;
- dizziness or spinning sensation (vertigo);
- eye problems including: bleeding in the eyes (conjunctival haemorrhage); difficulty focusing or blurred vision (visual accommodation disorder, papilloedema or eye disorder); blindness; eye itching (ocular pruritus); increased tears (increased lacrimation); or visual disturbances;
- digestive system problems including: vomiting; bad breath (halitosis); difficulty swallowing (dysphagia); indigestion or heartburn (gastroesophageal reflux disorder); blood in the stools (haematochezia); stomach discomfort; mouth ulcers or blisters in the mouth (stomatitis); discoloured teeth (dental discolouration);
- weight loss; weight gain; alcohol intolerance; loss of appetite (anorexia or decreased appetite); dehydration;
- general feeling of discomfort (malaise); chest pain; irritability; facial swelling (facial oedema); feeling of warmth; increased body temperature; nervous feeling;
- flu; localized infection; inflammation of the nose and throat (nasopharyngitis);
- nose and throat problems including: cough; runny nose (rhinorrhoea); dry throat; shortness of breath or difficulty breathing (dyspnoea); nasal congestion; painful breathing (painful respiration);
- painful swollen joints caused by uric acid (breakdown product of food) (gout);
- muscle stiffness; muscle weakness; shoulder pain; muscle contractions;
- nervous system problems including involuntary muscle contractions (clonus); distorted sense of taste (dysgeusia); reduced sense of taste (hypogeusia); sensation of reduced sensitivity, especially in the skin (hypoesthesia); nerve function disorders in arms and legs (peripheral neuropathy); blood clot in the transverse sinus (transverse sinus thrombosis);
- depression; abnormal dreams;
- hair loss (alopecia); sensitivity to light (photosensitivity reaction); acne; skin allergic reaction due to contact with allergens (contact dermatitis); skin manifestations with rash and blisters (eczema); dry skin; skin redness (erythema); severe peeling or exfoliative rash (exfoliative eruption); abnormal hair growth; thickening and itching of the skin due to repeated scratching (prurigo); bleeding under the skin surface or bruises under the skin (purpura); itchy skin rash (papular rash); itchy skin rash (pruritic rash); generalized itchy rash (urticaria); skin lump (skin nodule); abnormal odour of the skin (abnormal skin odour);
- circulation problems including blood clots in the liver vein (portal vein thrombosis); low blood pressure (hypotension); increased blood pressure; blockage of a blood vessel (peripheral embolism); reduced blood flow in hands, ankles or feet (peripheral ischaemia); swelling and clotting in a vein, which may be extremely soft to touch (phlebitis or superficial thrombophlebitis); blood clotting (thrombosis);
- a rare condition characterised by episodes of burning pain, redness and warmth in the feet and hands (erythromelalgia).
Uncommon: may affect up to 1 in 100 people (may be observed in blood or urine tests)
- a rare type of anaemia in which red blood cells, white blood cells and platelets are reduced in number (aplastic anaemia);
- increased white blood cell count (leucocytosis);
- excessive platelet production (thrombocythaemia); increased platelet count; abnormal count of blood cells that prevent bleeding (abnormal platelet count);
- changes in certain blood tests (increased transaminases; increased blood lactate dehydrogenase);
- or cancer of the white blood cells (multiple myeloma);
- protein in the urine.
Reporting of adverse effects
If you experience any adverse effect, talk to your doctor, pharmacist or nurse, even if it is a possible adverse effect not listed in this leaflet. You may also report them directly via the national reporting system listed in Appendix V. By reporting adverse effects, you can help provide more information on the safety of this medicine.
5. Storage of Nplate
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date stated on the carton and on the label of the vial after EXP. The expiry date refers to the last day of the stated month.
Store in a refrigerator (between 2°C and 8°C).
Do not freeze.
Keep in the original packaging to protect from light.
When stored in the original packaging, this medicine may be kept outside the refrigerator for a maximum period of 30 days at room temperature (up to 25**°**C).
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines and packaging that you no longer need. This will help protect the environment.
6. Contents of the pack and other information
Composition of Nplate
- The active substance is romiplostim.
Each vial of Nplate 250 micrograms powder for injectable solution contains a total of 375 micrograms of romiplostim. An additional volume has been added to each vial to ensure that 250 micrograms of romiplostim can be administered. After reconstitution, a final product volume of 0.5 ml of solution contains 250 micrograms of romiplostim (500 micrograms/ml).
Each vial of Nplate 500 micrograms powder for injectable solution contains a total of 625 micrograms of romiplostim. An additional volume has been added to each vial to ensure that 500 micrograms of romiplostim can be administered. After reconstitution, a final product volume of 1 ml of solution contains 500 micrograms of romiplostim (500 micrograms/ml).
- The other components are:
Powder: mannitol (E421), sucrose, L-histidine, hydrochloric acid (for pH adjustment), and polysorbate 20.
Solvent: water for injections.
Nature of the product and pack contents
Nplate is a white powder for injectable solution supplied in a single-dose 5 ml glass vial.
Nplate is supplied in a pack or multiple pack containing 4 packs. Each pack contains:
1 vial of 250 micrograms or 500 micrograms of romiplostim.
1 pre-filled syringe containing 0.72 ml or 1.2 ml of water for injections for reconstitution.
1 plunger for the pre-filled syringe.
1 sterile vial adapter.
1 sterile 1 ml syringe with Luer lock.
1 sterile safety needle.
4 alcohol wipes.
Some pack sizes may not be marketed.
Marketing Authorization Holder and Manufacturer
Amgen Europe B.V.
Minervum 7061
4817 ZK Breda
The Netherlands
Marketing Authorization Holder
Amgen Europe B.V.
Minervum 7061
4817 ZK Breda
The Netherlands
Manufacturer
Amgen Technology (Ireland) Unlimited Company
Pottery Road
Dun Laoghaire
Co Dublin
Ireland
Manufacturer
Amgen NV
Telecomlaan 5-7
1831 Diegem
Belgium
More information about this medicinal product is available upon request to the local representative of the Marketing Authorization Holder.
Belgium/Belgium/Belgium s.a. Amgen n.v. Tel/Tel: +32 (0)2 7752711 | Lithuania Amgen Switzerland AG Vilnius Branch Tel: +370 5 219 7474 |
| Luxembourg/Luxembourg s.a. Amgen Belgium/Belgium Tel/Tel: +32 (0)2 7752711 |
Czech Republic Amgen s.r.o. Tel: +420 221 773 500 | Hungary Amgen Kft. Tel.: +36 1 35 44 700 |
Denmark Amgen branch of Amgen AB, Sweden Tlf: +45 39617500 | Malta Amgen S.r.l. Italy Tel: +39 02 6241121 |
Germany Amgen GmbH Tel.: +49 89 1490960 | Netherlands Amgen B.V. Tel: +31 (0)76 5732500 |
Estonia Amgen Switzerland AG Vilnius Branch Tel: +372 586 09553 | Norway Amgen AB Tlf: +47 23308000 |
| Austria Amgen GmbH Tel: +43 (0)1 50 217 |
Spain Amgen S.A. Tel: +34 93 600 18 60 | Poland Amgen Biotechnologia Sp. z o.o. Tel.: +48 22 581 3000 |
France Amgen S.A.S. Tél: +33 (0)9 69 363 363 | Portugal Amgen Biofarmacêutica, Lda. Tel: +351 21 4220606 |
Croatia Amgen d.o.o. Tel: +385 (0)1 562 57 20 | Romania Amgen România SRL Tel: +4021 527 3000 |
Ireland Amgen Ireland Limited Tel: +353 1 8527400 | Slovenia AMGEN zdravila d.o.o. Tel: +386 (0)1 585 1767 |
Iceland Vistor hf. Sími: +354 535 7000 | Slovakia Amgen Slovakia s.r.o. Tel: +421 2 321 114 49 |
Italy Amgen S.r.l. Tel: +39 02 6241121 | Finland/Finland Amgen AB, branch in Finland/Amgen AB, filial i Finland Puh/Tel: +358 (0)9 54900500 |
Cyprus C.A. Papaellinas Ltd Tel.: +357 22741 741 | Sweden Amgen AB Tel: +46 (0)8 6951100 |
Latvia Amgen Switzerland AG Riga Branch Tel: +371 257 25888 |
Date of the most recent review of this leaflet
Other sources of information
Detailed information on this medicine is available on the European Medicines Agency website: http://www.ema.europa.eu
- Instructions for preparing and administering an injection of Nplate
This section contains information on how to self-inject Nplate. It is important that you do not attempt to self-administer the injection unless you have been trained by your doctor, nurse, or pharmacist. If you have any questions about how to give the injection, consult your doctor, nurse, or pharmacist. It is very important that the product is prepared correctly and that the correct dose is administered.
This section is divided into the following subsections:
Before you begin
Step 1. Arrange the injection materials
Step 2. Prepare the vial for use, attach the vial adapter
Step 3. Prepare the syringe with sterile water
Step 4. Reconstitute Nplate by injecting the water into the vial
Step 5. Prepare a new syringe for the injection
Step 6. Prepare the injection needle
Step 7. Choose and prepare the injection site
Step 8. Inject the Nplate solution
Step 9. Disposal of supplies
Before you begin
Read all the instructions carefully. These instructions are intended for patients who have already been trained by their healthcare professional, such as their doctor, nurse, or pharmacist, in self-injection. If you have not been trained, please contact your healthcare professional.
The Nplate self-injection kit must be kept in its original packaging until use to protect the Nplate vial from light. Store the Nplate self-injection kit refrigerated between 2°C and 8°C.
Once Nplate has been reconstituted, inject it immediately.
It is possible that some Nplate will remain after the prescribed dose has been administered. Do not reuse Nplate! Any reconstituted Nplate remaining after administration must be discarded immediately after completing the injection process. Leftover Nplate from the vial must NEVER be reused for another injection.
Step 1. Arrange the injection materials
Do the following:
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Select a flat, well-lit work surface, such as a table.
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Remove the Nplate self-injection kit from the refrigerator. Do not use if frozen. If you have any doubts about storage, contact your healthcare professional for further instructions.
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Check the expiry date printed on the self-injection kit. If the expiry date has passed, do not use it. Do not proceed and inform your healthcare professional.
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Note: If your doctor has indicated that your Nplate dose requires more than one injection, you will need to use more than one self-injection kit. Follow the steps described in this leaflet and use as many self-injection kits as necessary to complete the prescribed Nplate dose.
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Ensure you have the following components:
Alcohol wipe packets x4
1 vial of 250 microgram powder or | 13 mm vial adapter x1 |
500 micrograms x1 | |


Sterile water pre-filled syringe plunger x1 Sterile water pre-filled syringe x1
1 ml syringe with Luer lock x1 Safety needle for injection x1
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Do not open items until instructed in the instructions.
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Do not use components that have been altered or damaged.
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Do not reuse components.
Step 2. Prepare the vial for use, attach the vial adapter
Use: 2 alcohol wipes, 1 vial, and 1 vial adapter pack.
Do the following:
(500 micrograms) plastic cap from the vial. |
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Step 3. Prepare the sterile water syringe
Use: The pre-filled sterile water syringe and plunger.
Before starting Step 3, please note the following:
- The transparent plastic plunger MUST always be attached before breaking off the white tip of the pre-filled sterile water syringe. Perform step 3a before step 3b.
Do the following:
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Step 4. Reconstitute Nplate by injecting the water into the vial
Use: Prefilled syringe of sterile water and vial with vial adapter attached.
Before starting Step 4, please note the following:
- Reconstitute slowly and carefully. It is a protein and, as such, may be easily damaged by improper or excessive agitation.
Do the following:
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Press slowly and gently |
Before continuing:
- Make sure that all the water is injected from the syringe into the vial before dissolving it.
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Correct |
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Incorrect |
Before continuing:
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Visually inspect the dissolved liquid for particles and/or discoloration. It must be clear, colorless, and completely dissolved.
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Note: If there is any color or particles in the liquid, contact your healthcare professional.
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Ensure the liquid is completely dissolved before removing the syringe.
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Dispose of the empty syringe in a sharps or hazardous waste container. Keep the dissolved Nplate vial. Immediately prepare a new syringe for injection.
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Do not delay the Nplate injection.
Step 5. Prepare a new syringe for injection
Use: A new 1 ml syringe from the package, and the vial with dissolved and clear Nplate.
Before continuing:
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Check your dose before starting this step.
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Note: Liquid Nplate is very potent, so accurate measurement and dosing are important.
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Ensure that all air bubbles have been removed before injection.
Do the following:
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Put air into the syringe up to the 1 ml mark |
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A.B.C. Turn upside down |
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Correct |
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Air bubbles: Correct Incorrect |
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Adjust the volume to your prescribed dose |
- Perform a final check to ensure the correct amount of liquid for your dose is in the syringe and that all air bubbles have been removed.
Before continuing:
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Make sure the correct amount of liquid for your dose remains in the syringe.
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Make sure all air bubbles are removed from the syringe.
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Step 6. Prepare the needle for injection
Use: The syringe filled with the measured dose of Nplate and the safety needle.
Do the following:
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Step 7. Choose and prepare the injection site
Use: New alcohol wipes.
Do the following:
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Step 8. Inject the Nplate liquid
Use: Kit with the filled syringe and needle.
Do the following:
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Step 9. Disposal of Supplies
Do the following:
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Immediately dispose of the syringe with the covered needle into a sharps container.
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Immediately dispose of the used Nplate vial into an appropriate waste container.
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Ensure all remaining materials are discarded in the appropriate containers.
The injection device and Nplate vial MUST NEVER be reused.
- Dispose of the used needle and syringe in a puncture-resistant container.
Dispose of any remaining Nplate in an appropriate waste container. Leftover material from an Nplate vial MUST NEVER be reused for another injection.


































