misinject

verb2

1. •
   To inject (a substance) incorrectly.

   • It is quite easy to misinject the adjuvant and deliver the bulk of the inoculum into a caudal blood vessel. — 1988
2. •
   To inject (a person) incorrectly.

   • If the Botox injecting physician overdoses the patient with Botox, or if he or she misinjects the patient — injects Botox into the wrong muscles — the consequences to the patient can be grave indeed. — 1964