Can we use carboxymethylcellulose (CMC) as vehicle/solvent for Intraperitoneal dosing in rat or mouse? If yes, then how much percentage of CMC is accepted for IP route of administration?
To test my newly synthesized molecules in rodents, I prepared it in 0.25% of CMC because it is not soluble in water. After toxicity study and PK study, I tested the compounds by oral route and IP route for 6 days. The IP route of administration showed greater efficacy than oral dosing.
Can I prefer the same route of administration (solvent - 0.25% CMC) for any chronic study?