Phenibut is a nootropic commonly taken for its calming effect. It is a derivative of the inhibitory neurotransmitter GABA, but with an extra phenyl ring which allows it to pass the blood-brain barrier more easily. Phenibut has been shown to: protect against stress, reduce severity of brain injuries; reduce anxiety; and modulate the immune system .
Phenibut has a low toxicity, and is freely soluble with water, so if you don't like the taste, you can easily mix it with a drink. It should not be combined with alcohol, MAO inhibitors, and epilepsy medication. If you have any concerns, please consult a physician.

1. Phenibut is a derivative of the naturally occurring inhibitory neurotransmitter GABA.

2. Phenibut is used by bodybuilders to reduce fatigue and improve neurological functions.

3. Phenibut has been and is still used medically to treat stress, relieve tension, improve sleep, and as a potentiate for other medications.