Listed below is a recap of the differences between immediate-release and extended-release Adderall. 1  Approval date: Adderall IR was approved in 1996, whereas Adderall XR didnât hit the market until 2001. 2  Cost: The cost of 30 Adderall IR pills is cheaper than the cost of 30 Adderall XR pills. The cost of 60 Adderall IR pills is more expensive than 30 XR pills; this would be an equivalent. That said, 60 generic Adderall IRs is cheaper than 30 XR pills. Dosages: There are a total of 7 dosing options for Adderall IR and the lower doses increase in 2.5 mg increments.
Definitions for omohyoid. Here are all the possible meanings and translations of the word omohyoid. Wiktionary(0.00 / 0 votes)Rate this definition: omohyoid(Noun) A muscle found in the neck, inferior to the hyoid bone (infrahyoid muscle). It is innervated by the C1 spinal nerve.
oÂ·moÂ·hyÂ·oid (musÂ·cle) infrahyoid muscle; formed of two bellies attached to intermediate tendon; origin, by inferior belly from upper border of scapula between superior angle and notch; insertion, by superior belly into hyoid bone; action, depresses hyoid; nerve supply, upper cervical spinal nerves through ansa cervicalis. omohyoid.