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

Type of: penicillin

• helpful
• helpfully
• helpfulness
• helping
• helping hand
• helpless
• helplessly
• helplessness
• helpline
• helpmate
• helpmeet
• Helsingfors
• Helsinki
• helter-skelter
• helve
• helvella
• Helvella acetabulum
• Helvella crispa
• Helvella sulcata
• Helvellaceae
• Helvetian
• Helvetic
• Helvetica
• Helwingia
• Helxine