The most effective drug in killing Plasmodium is

Options

A. Quinine
B. quinine sulphate
C. Chloroquine phosphate
D. Daraprim.

Answer

To answer the question "The most effective drug in killing Plasmodium is," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Context**:
- Plasmodium is a protozoan parasite responsible for malaria, a serious disease transmitted by Anopheles mosquitoes.
- There are several species of Plasmodium, including P. falciparum, P. vivax, P. ovale, and P. malariae, each causing different forms of malaria.

2. **Identify the Drugs Listed**:
- The options given are:
- Quinine
- Quinine sulfate
- Chloroquine phosphate
- Daraprim

3. **Evaluate Each Drug**:
- **Quinine**: An older antimalarial drug but less effective compared to its derivatives.
- **Quinine sulfate**: A derivative of quinine that is more effective in treating malaria.
- **Chloroquine phosphate**: Once widely used, but resistance has developed in many Plasmodium strains, making it less effective.
- **Daraprim**: Used for treating malaria but is not as widely recognized or effective compared to the others.

4. **Determine the Most Effective Drug**:
- Among the options, quinine sulfate is noted for its high efficacy in killing Plasmodium compared to the other drugs listed.
- Therefore, the most effective drug in killing Plasmodium is **Quinine sulfate**.

5. **Conclusion**:
- The correct answer to the question is **Quinine sulfate** (Option B).