Rewrite this sentence using the same information but using the past perfect tense
The patient had taken the antibiotic for two days.
The patient had had taken the antibiotic for two days.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Rewrite this sentence using the same information but using the past perfect tense

### Response:
The patient had had taken the antibiotic for two days.