Lisoril 5 Tablet is primarily prescribed to treat high blood pressure heart failure and improve survival after a heart attack Lisinopril belongs to a class of medications called ACE inhibitors which relax blood vessels thereby reducing blood pressure and relieving the hearts workload It achieves this by inhibiting the action of ACE an enzyme involved in the production of a substance that tightens blood vessels It is important to follow the prescribed dosage and advice from a healthcare professional to effectively manage high blood pressure or other conditions Any adverse effects or concerns should be promptly discussed with a healthcare provider