Drug Detail:Trelstar (Triptorelin [ trip-toe-rel-in ])
Generic Name: TRIPTORELIN PAMOATE 3.75mg in 2mL;
Dosage Form: injection, powder, lyophilized, for suspension
Drug Class: Gonadotropin releasing hormones Hormones / antineoplastics
2.1 Dosing Information
TRELSTAR must be administered under the supervision of a physician.
TRELSTAR is administered by a single intramuscular injection in either buttock. Dosing schedule depends on the product strength selected (Table 1). The lyophilized microgranules are to be reconstituted in sterile water. No other diluent should be used.
Dosage | 3.75 mg | 11.25 mg | 22.5 mg |
Recommended dose | 1 injection every 4 weeks |
1 injection every 12 weeks |
1 injection every 24 weeks |
Due to different release characteristics, the dosage strengths are not additive and must be selected based upon the desired dosing schedule.
The suspension should be administered immediately after reconstitution.
As with other drugs administered by intramuscular injection, the injection site should be alternated periodically.
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.
2.2 Reconstitution Instructions for TRELSTAR with MIXJECT® SYSTEM
Important: Please read the instructions completely and prepare the patient before you begin the MIXJECT activation and drug administration procedure.
MIXJECT Preparation and Activation
Wash your hands with soap and hot water and put on gloves immediately prior to preparing the injection. Place the sealed tray on a clean, flat surface that is covered with a sterile pad or cloth. Peel the cover away from the tray and remove the MIXJECT components and the TRELSTAR vial.
STEP 1 – PREPARE VIAL Remove the flip-off button cap from the vial, revealing the rubber stopper. |
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STEP 2 – APPLY MIXJECT VIAL ADAPTER Peel the cover away from the blister pack containing the vial adapter. Do not remove the vial adapter from the blister pack. |
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STEP 3 – PREPARE SYRINGE BARREL (a) Screw the plunger rod into the gray stopper in the barrel end of the syringe. |
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STEP 4 – TRANSFER DILUENT TO VIAL While keeping the syringe and vial securely coupled in an upright position, slowly push the plunger to transfer all of the diluent into the vial. Ensure that diluent rinses the sides of the vial. |
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STEP 5 – MIX TRELSTAR SUSPENSION Keep the plunger rod depressed, grip the vial and vial adapter firmly and shake vigorously for 30 seconds to mix the contents thoroughly. This will ensure complete mixing of TRELSTAR and the sterile water diluent. |
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STEP 6 – LOAD THE SYRINGE WITH TRELSTAR (a) Invert the MIXJECT system so that the vial is at the top. |
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STEP 7 – DISCONNECT VIAL ADAPTER Return the vial to its upright position. |
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STEP 8 – PREPARE NEEDLE FOR INJECTION Make sure that the patient is ready for the administration. |
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STEP 9 – ADMINISTRATION Administer the injection by inserting the needle at a 90-degree angle into the large gluteal muscle. Ensure that the full amount of the product is injected within 10 seconds without interruption. Injection sites should be alternated. |
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STEP 10 – SAFETY LOCK AFTER INJECTION After administering the injection, immediately activate the safety mechanism by centering your thumb or forefinger on the textured finger pad area of the safety cover and pushing it forward over the needle until you hear or feel it lock in place. Use the one-handed technique and activate the mechanism away from yourself and others. Immediately discard the syringe into a sharps container after a single use. |