String Manipulation in Python for Pharmacy Students (Drug Names, Prescriptions & Text Processing)

String manipulation is a powerful feature in Python used to handle and process text data. In pharmaceutical sciences, it is widely used for handling drug names, prescription details, patient records, and reports.

🔷 What is a String?

A string is a sequence of characters enclosed in quotes.

drug = "Paracetamol"

🔷 Accessing Characters (Indexing)

drug = "Aspirin"
print(drug[0])  # A

Index starts from 0.

🔷 String Slicing

drug = "Ibuprofen"
print(drug[0:4])  # Ibu

Used to extract part of a string.

🔷 Common String Methods

🔷 String Concatenation

drug = "Paracetamol"
dose = "500 mg"

prescription = drug + " " + dose
print(prescription)

🔷 String Formatting

drug = "Ibuprofen"
dose = 400

print(f"Take {drug} {dose} mg twice daily")

💊 Prescription Processing Example

drug = " paracetamol "
clean_drug = drug.strip().capitalize()

print(f"Prescribed Drug: {clean_drug}")

This removes extra spaces and formats drug name correctly.

🔷 Searching in Strings

text = "Patient is taking Aspirin"

if "Aspirin" in text:
    print("Drug found")

🧠 Memory Tricks

• upper() → CAPS
• lower() → small
• strip() → remove spaces
• replace() → change text

🧪 Practice Exercise

Create a program that:

• Takes drug name as input
• Removes extra spaces
• Displays formatted output

📝 MCQs

1. Which method converts text to uppercase?
   a) lower()
   b) upper()
   c) strip()
   d) replace()
   Answer: b


2. strip() is used to:
   a) Add text
   b) Remove spaces
   c) Convert case
   d) Replace text
   Answer: b


3. Which operator joins strings?
   a) +
   b) *
   c) /
   d) =
   Answer: a

❓ FAQs

Why is string manipulation important in pharmacy?

It helps in handling drug names, prescriptions, and patient records.

Which method removes spaces?

strip() is used to remove extra spaces.

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