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.
Bupropion (Aplenzin, Wellbutrin XL) is also used to treat seasonal affective disorder (SAD; episodes of depression that occur at the same time each year [usually in the fall and winter but rarely may occur in the spring or summer months]). Bupropion (Zyban) is used to help people stop smoking.