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.
- ventouse
- ventral
- ventral fin
- ventrally
- ventre à terre
- ventricle
- ventricose
- ventricular
- ventriculography
- ventriloquial
- ventriloquise
- ventriloquism
- ventriloquist
- ventriloquize
- ventriloquy
- ventripotent
- ventrolateral
- ventrolaterally
- ventromedial
- ventromedially
- Ventura
- Ventura, Jesse
- venture
- venture capital
- venture capitalism