Omeoprazole and lansoprazole are used as -

Options

A. antifertility
B. antiallergic
C. antibiotic
D. antacid

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks about the uses of Omeprazole and Lansoprazole. We need to identify the category of medication they belong to from the given options: anti-fertility, anti-allergic, antibiotic, or antacid.

2. **Identifying the Function of Omeprazole and Lansoprazole:**
Both Omeprazole and Lansoprazole are known to affect stomach acidity. They are used to treat conditions related to excessive stomach acid production, such as gastroesophageal reflux disease (GERD) and peptic ulcers.

3. **Defining Antacids:**
Antacids are substances that neutralize stomach acidity. They help in restoring the normal pH balance in the stomach, which can be disrupted due to excessive acid production.

4. **Confirming the Classification:**
Since Omeprazole and Lansoprazole are used specifically to reduce stomach acid and treat conditions caused by high acidity, they fall under the category of antacids.

5. **Selecting the Correct Answer:**
Based on the understanding that both medications are used to counteract stomach acidity, the correct answer to the question is "antacid."

**Final Answer:**
Omeprazole and Lansoprazole are used as **antacids**.

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