Why isn't fioricet a controlled substance?

Fioricet contains tylenol, caffeine, butalbital. Its sister drug, Fiorinal is schedule III. The only difference is fioricet contains tylenol as a component while fiorinal instead has aspirin. This is not a valid reason for the unscheduling of fioricet. Both contain the same habit forming drug, butalbital. Can someone please explain.

Gabapentin and Pregabalin

Gabapentin is a structural analogue of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) that was first approved for use in the United States in 1993.

It was originally developed as a novel anti-epileptic for the treatment of certain types of seizures – today it is also widely used to treat neuropathic pain.

Gabapentin has some stark advantages as compared with other anti-epileptics, such as a relatively benign adverse effect profile, wide therapeutic index, and lack of appreciable metabolism making it unlikely to participate in pharmacokinetic drug interactions.

Gabapentin and pregabalin

It is structurally and functionally related to another GABA derivative, pregabalin.

Who can and cannot take gabapentin ?

Who can take gabapentin

Gabapentin can be taken by most adults and children aged 6 and over.

Who may not be able to take gabapentin

Gabapentin is not suitable for some people.

To make sure it’s safe for you, tell your doctor if you:

have ever had an allergic reaction to gabapentin or any other medicine
have ever misused or been addicted to a medicine
are trying to get pregnant or are already pregnant
are on a controlled sodium or potassium diet, or your kidneys do not work well (gabapentin liquid contains sodium and potassium, so speak to your doctor before taking it)