side effect 
noun
A secondary, typically undesirable effect of a drug or medical treatment: many anti-cancer drugs now in use have toxic side effects...
- Most of those who had had a stroke were aware of their own drug treatment and were concerned about the side effect of drugs.
- Tell your doctor if you have had a particular side effect from a pain medication in the past.
- If priapism has occurred as a side effect of medication then a different medication can usually be prescribed.
- percussion cap
- percussion drill
- percussion figure
- percussion gun
- percussion gun-lock
- percussion hammer
- intellectualistic
- intellectuality
- intellectualize
- intellectually
- intellectualness
- intellectual property
- intelligence
- intelligence agency
- intelligence agent
- intelligence assessment
- intelligence center
- intelligence centre
- Intelligence Corps
- intelligenced
- intelligence department
- intelligence office
- intelligence quotient
- intelligencer
- intelligence service