See Also: dufrenoysite(dictionary)
Dells Area Health Center Avera Health(health)
Divine Providence Health Center Avera Health(health)
Hegg Memorial Health Center Avera Health(health)
health(dictionary)
health spa(dictionary)
Sun Health(health)
Man's health(health)
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IMS Health(finance)

Ritalin (health) and dufrenoysite (iou)


Ritalin (health)


Ritalin is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in Other countries. Active ingredient(s): methylphenidate hydrochloride.





dufrenoysite (iou)



dufrenoysite noun. M19.
[formed as DUFRENITE + -s- + -ITE1.]
Mineralogy. A monoclinic sulphide of lead and arsenic usu. occurring as grey prisms with a metallic lustre.