What are the common methods of morphine administration?

Morphine is a versatile opioid analgesic that can be administered through various routes depending on the patient's needs, the context of use, and the specific formulation. The combination of oral, immediate release, and controlled release options is significant due to the pharmacokinetics of morphine, which determine how and when it is best used for pain management.

Oral administration is one of the most commonly used routes for morphine, allowing for convenient self-administration in outpatient settings. It is particularly valuable for chronic pain management. Within this category, morphine is available in immediate release formulations, which provide quick relief of pain, and controlled release formulations, which are designed for sustained pain control over an extended period. This adaptability is crucial in tailoring pain management strategies to individual patient needs.

Therefore, the correct answer encompasses the broad range of oral formulations that morphine offers, reflecting its flexibility in treatment. This duality of immediate release for acute pain and controlled release for chronic pain management solidifies its role as a cornerstone in opioid therapy for diverse pain scenarios.