Sequential pills contains

Options

A. a high dose of oestrogen
B. moderate dose of progesterone
C. both (1) and (2)
D. high dose of FSH and LH

Answer

### Step-by-Step Solution:

1. **Understanding Sequential Pills**: Sequential pills are a type of oral contraceptive used to prevent pregnancy. They are designed to mimic the natural hormonal cycle of a woman.

2. **Composition of Sequential Pills**: These pills typically contain two phases:
- **Phase 1**: The first phase consists of estrogen-only pills. This phase usually lasts for a certain number of days (commonly 5 to 7 days) and is designed to provide a high dose of estrogen.
- **Phase 2**: The second phase includes a combination of estrogen and progesterone pills. This phase follows the initial estrogen-only phase and provides a moderate dose of progesterone along with estrogen.

3. **Hormonal Delivery**: The sequential pills deliver a high dose of estrogen initially, followed by a moderate dose of progesterone. This combination helps in regulating the menstrual cycle and preventing ovulation.

4. **Conclusion**: Based on the composition and hormonal delivery of sequential pills, the correct answer to the question is that they contain both high doses of estrogen and moderate doses of progesterone.

### Final Answer:
Sequential pills contain both high doses of estrogen and moderate doses of progesterone.

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