Many forms of melatonin are available as supplements, including capsules, tablets, and liquid. It depends on personal preference and convenience which form to take. Because capsules are easy to swallow and can be taken with or without food, they are a popular form of melatonin. Compared to tablets, capsules are more discreet, which can be larger and more noticeable.

It is possible for CBN capsules to expire, just like any other type of medication or supplement. It's important to check the expiration date on the packaging and to store the capsules according to the manufacturer's instructions.
 

Even though its safety and effectiveness have not been fully established in children, melatonin capsules are sometimes used as sleep aids. Food and Drug Administration (FDA) does not currently approve melatonin for use in children, and the American Academy of Pediatrics (AAP) does not currently recommend melatonin.

There is some evidence that melatonin may be effective in helping children with certain sleep disorders, such as insomnia and restless leg syndrome. More research is needed, however, in order to determine how melatonin affects children long-term, and what dosage works best for different age groups.

CBN (cannabinol) is a chemical compound found in the cannabis plant. While CBN has not been studied as extensively as other compounds found in cannabis, such as CBD (cannabidiol), it is generally considered to be safe when taken as directed. However, as with any cannabinoid, it's important to talk to check your own needs before taking CBN capsules to ensure they are appropriate for you.
 

It is not recommended to take melatonin indefinitely, even though it is generally considered safe in short-term use. As melatonin is not well understood for long-term effects and can interact with certain medications and supplements, its long-term effects are unclear. Aside from headaches, dizziness, nausea, and sleepiness, melatonin can also cause side effects in some people.