Norditropin 45 IU 45iu/vial 1 Vial by Novo Nordisk

Usage

1. Remove the Norditropin 45 IU vial from the refrigerator 5–10 minutes before use and allow it to reach room temperature passively — do not apply heat — to reduce injection discomfort and prevent thermal shock to the lyophilised cake.
2. Wipe the vial's rubber septum with a 70 % isopropyl alcohol swab and allow it to air-dry for 30 seconds before inserting any needle.
3. Draw the chosen volume of bacteriostatic water (1.5 mL for 30 IU/mL or 2.25 mL for 20 IU/mL) into a 2 mL syringe, then inject it slowly down the interior glass wall of the vial — not directly onto the powder — to minimise foam formation.
4. Swirl the vial gently in a circular motion for 10–15 seconds until the powder is fully dissolved; the solution should be clear and colourless. If cloudiness or particles remain, do not inject — discard the vial.
5. Label the vial with the reconstitution date and time, then store upright at 2–8 °C away from light. Never place it in the fridge door (temperature fluctuates there); use the central shelf.
6. Draw each dose with a fresh 1 mL U-100 insulin syringe. Administer subcutaneously into the abdomen or thigh, rotating injection sites to prevent lipohypertrophy. Discard all remaining reconstituted solution after 28 days from the mixing date.

Warnings

Frequently asked questions

How should I reconstitute Norditropin 45 IU to preserve maximum potency?

Inject bacteriostatic water slowly down the inside wall of the vial rather than directly onto the lyophilised cake, then swirl gently — never shake or vortex. Shear stress at the air–liquid interface unfolds somatropin's alpha-helical structure, generating aggregates that reduce bioavailable dose. Aim for a clear, colourless solution before drawing your dose. Most users add 1.5–2.25 mL of bacteriostatic water, yielding 20–30 IU per mL.

How long does reconstituted Norditropin remain stable in the refrigerator?

Reconstituted Norditropin is stable for up to 28 days when stored continuously at 2–8 °C and reconstituted with bacteriostatic water. If sterile water for injection is used instead — which contains no preservative — the window shrinks to approximately 24 hours. Always label the vial with the exact reconstitution date and discard any remaining solution once the 28-day limit is reached, regardless of volume left.

What happens to HGH potency if the cold chain is broken during shipping?

Brief excursions above 8 °C accelerate protein denaturation: validated accelerated-stability data show measurable potency loss in reconstituted somatropin exposed to 25 °C for more than 6–8 hours. The lyophilised (dry) powder is more forgiving — it can tolerate short ambient exposure — but should still be refrigerated promptly on receipt. If your shipment arrived warm, inspect the vial: if the cake is intact, dry, and white, potency is likely preserved; discard if the powder appears wet, discoloured, or partially dissolved.

Can Norditropin 45 IU be frozen to extend its shelf life after reconstitution?

No — freezing reconstituted somatropin is a critical error. Ice-crystal formation physically disrupts the protein's three-dimensional structure, and HPLC analysis of freeze-thawed solutions shows a significant increase in high-molecular-weight aggregates alongside reduced 22 kDa monomer peak area. The lyophilised vial before reconstitution should also never be frozen, as freeze-thaw cycling degrades the excipient matrix. Store all Norditropin vials — before and after mixing — strictly between 2 °C and 8 °C.

What insulin syringe volume and markings should I use to draw accurate doses from a reconstituted Norditropin vial?

Use a 1 mL insulin syringe marked in 100-unit (U-100) increments. At a reconstitution concentration of 30 IU per mL (1.5 mL bacteriostatic water per 45 IU vial), each 10-unit mark on the syringe equals exactly 3 IU of somatropin. At 20 IU per mL (2.25 mL diluent), each 10-unit mark equals 2 IU. Choosing and documenting your dilution ratio before the first draw ensures consistent dosing throughout the 28-day usable period. (2) angle_used

Manufacturer

Novo Nordisk — headquartered in Bagsværd, Denmark — is a global biopharmaceutical company with over four decades of specialisation in protein-based hormone therapies, built initially around insulin and subsequently extended to recombinant growth hormone. The company's somatropin manufacturing expertise is anchored in mammalian expression technology, which replicates the exact post-translational processing of endogenous pituitary GH — a critical distinction from prokaryotic expression systems. Norditropin represents Novo Nordisk's dedicated growth hormone franchise, developed with proprietary stabilisation chemistry designed specifically to maintain lyophilised protein integrity through the distribution cold chain.