Examples of Price Elasticity of Demand. If the quantity purchased changes more than price change (say, 10%/5%), the product is termed elastic. If the change in quantity purchased is the same as the price change (say, 10%/10% = 1), the product is said to have unit (or unitary) price elasticity.
Wellbutrin had side effects at the beginning-the worst of which were insomnia and constipation. The insomnia abated after about 3 weeks of treatment and I take a fiber supplement to deal with the constipation. It also abates with time but never completely goes away.
Since it is a compound that binds to GABA receptors, with higher doses, it can cause sleepiness. Phenibut is one of the most popular natural treatments for insomnia. However, some users claim that tolerance to the compounds builds up fast and withdrawal symptoms can be experienced when you suddenly stop intake.