Nootropics 

Adderall - Stimulant
It can treat ADHD. It can also treat narcolepsy.
Controlled substance
Can cause rapid or irregular heartbeat, delirium, panic, psychosis, and heart failure.
Aniracatem - Aniracetam, also known as N-anisoyl-2-pyrrolidinone, is an ampakine nootropic of the racetam chemical class purported to be considerably more potent than piracetam. It is lipid-soluble and has possible cognition-enhancing effects. Wikipedia
Armodafanil - Stimulant
It can treat sleepiness from narcolepsy, sleep apnea, or night shift work.
Controlled substance
Can cause rapid or irregular heartbeat, delirium, panic, psychosis, and heart failure.

B12 Vitamins - Vitamin B₁₂, vitamin B12 or vitamin B-12, also called cobalamin, is a water-soluble vitamin that has a key role in the normal functioning of the brain and nervous system, and the formation of red blood cells. It is one of eight B vitamins. Wikipedia

Cavalier - Cognitive & Stress Support - Zembrin is the key ingredient to help create a healthy mind and body. 

Cebria - is a nootropic supplement made with all-natural ingredients that claims to improve your short-term memory using a safe and effective formula.
FOCUS Factor - The manufacturer claims that the Focus Factor formula is their number one brain formula, a claim which, sadly, is not entirely validated by scientific evidence. According to the manufacturer, this supplement is a combination of natural ingredients, minerals, vitamins, herbal extracts, and Omega-3 oils
Ginkgo Biloba - Ginkgo biloba, known as ginkgo, also spelled gingko, or as the maidenhair tree, is the only living species in the division Ginkgophyta, all others being extinct. It is found in fossils dating back 270 million years.Wikipedia

Modafanil - Stimulant It can treat narcolepsy, sleep apnea, and shift work sleep disorder.

Optimind - is a popular nootropic supplement that claims to boost your focus while wiping out “brain fog”. It uses a mixture of 12 ingredients including common nootropic compounds like Vinpocetine, GABA, and Huperzine A as well as natural ingredients like green tea extract.

Piracetam - Piracetam is a nootropic drug in the racetams group, with chemical name 2-oxo-1-pyrrolidine acetamide. It shares the same 2-oxo-pyrrolidone base structure with pyroglutamic acid. Piracetam is a cyclic derivative of GABA. Wikipedia

Ritalin - Stimulant
It can treat ADHD and narcolepsy.
Controlled substance
Can cause rapid or irregular heartbeat, delirium, panic, psychosis, and heart failure.

Articles 

From Bulletproof Exec: 13 nootropics to unlock your brain 

From Examine.com: ​https://examine.com/supplements/nootropic/

From Nootriment: http://nootriment.com/nootropic-supplements/
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