Atropine Sulphate Injection is used to treat bradycardia (slow heart rate). It helps to restore normal heartbeat in cardiac arrest cases. This injection is also given before general anesthesia to reduce saliva secretions. It even works as an antidote to some insecticide poisoning. Atropine Sulphate Injection may be used in combination with other medicines to reverse the effect of muscle relaxants during surgery. It is given by your doctor or nurse, who will make sure you get the right amount. Let your doctor know about all other medications you are taking as some may affect, or be affected by this medicine. Common side effects of this medicine include blurred vision and fast heart rate. Dry mouth may also occur while using this medicine so, try to do frequent mouth rinses, maintain good oral hygiene and increase water intake. Pregnant or breastfeeding women should also consult their doctor before taking this medicine. It is better to avoid this medication if you are suffering from any severe heart disease or urinary retention.