Definition

1. Noun:
   • A type of antibacterial drug: "Sulpha" refers to any of a group of synthetic organic compounds used as antibacterial drugs. They work by inhibiting the growth of bacteria that require para-aminobenzoic acid (PABA) for their metabolism.

Usage

• The term "sulpha" is primarily used in medical and pharmaceutical contexts to describe a specific class of antimicrobial agents. It is often used attributively to modify other nouns, such as "sulpha drug."

Examples

• Noun:
  • The doctor prescribed a sulpha to treat the bacterial infection.
  • Before the widespread use of penicillin, sulpha drugs were a common treatment for pneumonia.

Advanced Usage

• "Sulpha drug": This is the most common compound usage, referring specifically to a medication belonging to the sulphonamide class.
  • The discovery of the first sulpha drug, Prontosil, was a major breakthrough in medicine.

Variants and Related Words

• Sulfa: This is a common alternative spelling, especially in American English. The meaning is identical.
  • The terms "sulpha" and "sulfa" are used interchangeably.
• Sulphonamide (or Sulfonamide): This is the full technical name for the class of compounds to which sulpha drugs belong.
  • Sulphonamides are synthetic antibiotics derived from sulfanilamide.

Synonyms

• Sulfonamide: The more formal, chemical term.
• Sulfa drug: The common compound term.

Notes on Meaning

• The word "sulpha" itself is almost never used in isolation in modern medical writing without "drug" or as part of a compound name (e.g., sulphanilamide). Its primary function is as a classifying adjective within the noun phrase "sulpha drug."

Noun

1. antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA