Which of the following is not correctly matched

Options

A. Antacid - Ranitidine
B. Antibiotic - Penicillin
C. Antihistamine - Seldane
D. Analgesic - Prontosil

Answer

To solve the question regarding which of the following pairs is not correctly matched, we will analyze each type of drug and its corresponding example step by step.

### Step 1: Analyze Antacid
- **Definition**: Antacids are substances that neutralize excess stomach acid and raise the pH to an appropriate level.
- **Example Given**: Rantidine (also known as Zantac).
- **Conclusion**: This match is correct.

### Step 2: Analyze Antibiotic
- **Definition**: Antibiotics are chemical substances that kill or inhibit the growth of microorganisms by interfering with their metabolic processes.
- **Example Given**: Penicillin.
- **Conclusion**: This match is correct.

### Step 3: Analyze Antihistamine
- **Definition**: Antihistamines are drugs used to treat allergic reactions by blocking histamine receptors.
- **Example Given**: Seldane (and Dimetane).
- **Conclusion**: This match is correct.

### Step 4: Analyze Analgesic
- **Definition**: Analgesics are drugs that reduce pain without impairing consciousness or causing other disorders of the nervous system.
- **Example Given**: Prontosil.
- **Conclusion**: This match is incorrect. Prontosil is actually an antimicrobial, not an analgesic. Analgesics typically include drugs like aspirin and paracetamol.

### Final Conclusion
- The incorrect match is **Analgesic - Prontosil**.

### Summary of Findings
1. Antacid - Rantidine: Correct
2. Antibiotic - Penicillin: Correct
3. Antihistamine - Seldane: Correct
4. Analgesic - Prontosil: Incorrect

### Answer
The pair that is not correctly matched is **Analgesic - Prontosil**.

---