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This document presents ten multiple-choice questions and answers regarding soft gelatin capsule manufacturing. Continuous lubrication prevents material buildup on rotating parts. Soft gelatin capsules are dried to a final moisture content of 6-10%. The bubble method is the only process not using molds. Materials sensitive to high moisture cannot be filled. A drug's pH below 2.5 breaks down the gelatin, causing leakage. Quality control measures gelatin ribbon thickness and fill weight. Drug stability in soft gelatin capsules is affected by temperature, humidity, interaction with gelatin, and light exposure. Dissolution tests ensure appropriate drug release rate. Non-polar compounds at high concentrations can cause drug migration into the gelatin shell. The content uniformity test is performed only if the weight variation test fails.

Here is the translation of the multiple-choice questions into English:

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1. What is the main purpose of continuous lubrication of rotating parts in the capsule manufacturing machine?
   • A) To improve the color of the capsules
   • B) To prevent material buildup on rotating parts
   • C) To increase the thickness of the gelatin
   • D) To reduce moisture content
   Answer: B) To prevent material buildup on rotating parts

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2. What is the final moisture content to which soft gelatin capsules are dried?
   • A) 2-4%
   • B) 6-10%
   • C) 15-20%
   • D) 30-40%
   Answer: B) 6-10%

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3. Which of the following processes does not use molds in the manufacturing of soft gelatin capsules?
   • A) Rotary Die Process
   • B) Reciprocating Die Process
   • C) Accogel Process
   • D) Bubble Method
   Answer: D) Bubble Method

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4. Which type of material cannot be filled into soft gelatin capsules?
   • A) Vegetable oils
   • B) Materials sensitive to high moisture
   • C) Alcoholic solutions
   • D) Water-miscible compounds
   Answer: B) Materials sensitive to high moisture

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5. What is the potential effect of a drug material with a pH of less than 2.5 inside a soft gelatin capsule?
   • A) No change occurs
   • B) It causes the gelatin shell to harden
   • C) It causes the gelatin to break down and the contents to leak
   • D) It increases the drug’s bioavailability
   Answer: C) It causes the gelatin to break down and the contents to leak

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6. Which of the following factors is measured during quality control in manufacturing?
   • A) Only the color of the capsules
   • B) Gelatin ribbon thickness and fill weight
   • C) Only drug efficacy
   • D) Only solubility
   Answer: B) Gelatin ribbon thickness and fill weight

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7. Which of the following factors affect the stability of the drug inside soft gelatin capsules?
   • A) Temperature and humidity only
   • B) Interaction with gelatin only
   • C) Light exposure only
   • D) All of the above
   Answer: D) All of the above

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8. What is the main goal of the dissolution test for soft gelatin capsules?
   • A) To ensure the capsule retains its shape in water
   • B) To ensure the active ingredient is released at the appropriate rate
   • C) To measure the capsule’s density
   • D) To determine the color of the capsule after dissolution
   Answer: B) To ensure the active ingredient is released at the appropriate rate

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9. Which of the following may cause the drug material to migrate into the gelatin shell?
   • A) High pH (pH > 9)
   • B) Low temperature
   • C) Inability of the material to dissolve in water
   • D) Presence of non-polar compounds at high concentrations
   Answer: D) Presence of non-polar compounds at high concentrations

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10. Which test is only performed if the weight variation test fails?

• A) Dissolution test
• B) Capsule disintegration test
• C) Content uniformity test
• D) Moisture test

Answer: C) Content uniformity test

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