This treatment is not recommended for patients suffering from any of the symptoms below:
Acute stage of respiratory attack
Stage 3 Chronic Obstructive Pulmonary Disease
Intoxication due to alcohol or non-prescription drugs
Haemoptysis (spitting up blood)
Hypertension - Stage 2 or secondary - This is when the reading is above 160/100.
Hypertension - Severe - This is when the reading is above 180/120.