1. Semisynthetic penicillin (trade names Principen and Polycillin and SK-Ampicillin)
   - ampicillin, Polycillin, SK-Ampicillin

Type of: penicillin

• impersonation
• impersonator
• impertinence
• impertinent
• impertinently
• imperturbability
• imperturbable
• imperturbableness
• imperturbably
• imperviable
• impervious
• imperviousness
• impetiginous
• impetigo
• impetrate
• impetuosity
• impetuous
• impetuously
• impetuousness
• impetus
• impi
• impiety
• impinge
• impinge on
• impingement