Methods for ameliorating infusion reactions

1. A method of ameliorating an infusion reaction associated with intravenous administration of at least one lipid formulated therapeutic agent in a mammal in need thereof, comprising administering to the mammal via injection a therapeutically effective amount of a nonsteroidal anti-inflammatory (NSAID) prior to the at least one lipid formulated therapeutic agent being intravenously administered, wherein the NSAID is ketorolac, wherein the infusion reaction comprises hypertension followed by hypotension and an increase in plasma thromboxane B2 levels, wherein the at least one lipid formulated therapeutic agent is formulated in a lipid nanoparticle (LNP), and wherein the lipid formulated therapeutic agent is a nucleic acid.

2. The method of claim 1 , wherein the administration of the NSAID begins within about 2 hours prior to the administration of the at least one lipid formulated therapeutic agent.

3. The method of claim 1 , wherein the ketorolac is administered in a dose of about 15 mg to about 60 mg.

4. The method of claim 3 , wherein the ketorolac is administered in a dose of about 30 mg to about 60 mg.

5. The method of claim 1 , wherein the at least one lipid formulated therapeutic agent is formulated in a lipid nanoparticle (LNP) comprising:

a) the at least one therapeutic agent;

b) a cationic lipid; and

C) a non-cationic lipid.

6. The method of claim 1 , wherein the lipid formulated therapeutic agent is siRNA or mRNA.

7. The method of claim 6 , wherein the lipid formulated therapeutic agent is siRNA.

8. The method of claim 6 , wherein the lipid formulated therapeutic agent is mRNA.

9. The method of claim 5 , further comprising administering an additional therapeutic agent.

10. The method of claim 9 , wherein the additional therapeutic agent is dexamethasone.

11. The method of claim 1 , wherein the NSAID is administered parenterally, intravenously, intramuscularly or subcutaneously.