Known side effects of Ilosure 4 include Fatigue Dryness in mouth Sleepiness Nasal congestion Weight gain Dizziness Orthostatic hypotension (sudden lowering of blood pressure on standing). Not everyone experiences these side effects.
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated August 2026
This is not an exhaustive list. Consult your doctor if you notice any unusual symptoms.