How is an opiate defined in health and safety terms?

An opiate is defined in health and safety terms as a substance that is addictive like morphine. Opiates are a class of drugs that are derived from the opium poppy, and they have potent pain-relieving properties. Because of their ability to create feelings of euphoria and relaxation, they can lead to physical dependence and addiction in users. This definition aligns with the classification of opiates in health and safety regulations, emphasizing their potential for abuse and the importance of monitoring their use to prevent misuse and addiction.

The other choices do not accurately represent the definition of opiates. Casual use is not a defining characteristic, as many substances can be safe for some people but harmful or addictive for others. The term "natural herb" is too restrictive and inaccurate when discussing opiates, which are derived specifically from the opium poppy rather than being broadly categorized as calming herbs. Lastly, while some opiates may be available in some formulations that can be obtained over-the-counter, defining opiates solely as over-the-counter pain relievers overlooks the significant risks associated with their use and the potential for addiction.