A rainbow is caused by the refraction and internal reflection of light inside rain drops, which results in the white sunlight being separated out into the colours of the rainbow. See the detailed pages which are linked to at the top of this page for a more in depth explanation.A. You need a few things to see a rainbow. rainbow is caused by the refraction and internal reflection of light inside rain drops, which results in the white sunlight being separated out into the colours of the rainbow. See the detailed pages which are linked to at the top of this page for a more in depth explanation. A. You need a few things to see a rainbow.
Gabapentin is in a class of medications called anticonvulsants. Gabapentin treats seizures by decreasing abnormal excitement in the brain. Gabapentin relieves the pain of PHN by changing the way the body senses pain. It is not known exactly how gabapentin works to treat restless legs syndrome.
Gabapentin is an analog of gamma-aminobutyric acid (GABA), a neurotransmitter that slows down the activity of nerve cells in the brain, but does not bind to GABA receptors or affect the production or uptake of GABA. How gabapentin works and how it relieves pain and suppresses seizures are unknown.abapentin is approved by the US Food and Drug Administration (FDA) for the treatment of epilepsy and postherpetic neuralgia. It is often prescribed off-label for other pain syndromes, anxiety and mood disorders, restless legs syndrome, alcohol withdrawal, and other conditions.