Succinyl Choline Chloride is used for skeletal mucle relaxation during surgery.

Succinyl Choline Chloride relaxes the muscles by blocking the impulses from the nerves.

Abnormal heart rhythm, Acne-like rash, Apnea (absence of breathing), Muscle pain, Joint pain, Slow heart rate, Altered heart rate, Increased saliva production, Hypersensitivity reaction, Decreased blood pressure, Jaw pain, Malignant hyperthermia (increased body temperature), Respiratory depression, Sinus tachycardia

• Succinylcholine chloride injections must be given only by a skilled doctor.
• Inform your doctor immediately, if you experience symptoms of rapid heartbeat, fast breathing, high body temperature, spasm or stiffness of the jaw or other muscles.
• Seek immediate medical attention if you experience severe allergic reaction such as tightness in chest, or difficulty in breathing. 
• Inform your doctor, if you had eye surgery, eye injury, glaucoma (increase eye pressure), electrolytes imbalance (low or high potassium, calcium or sodium levels), liver or kidney or heart disease, cancer, bleeding in brain, thyroid disease, low haemoglobin, ulcers, fractures or muscle spasm.
• Tell your doctor, if you are pregnant or planning to be pregnant or are breastfeeding.
• Do not take if patient is allergic to succinylcholine chloride or any of its ingredients.
• Do not take if patients with recent severe burn, trauma, nerve damage, or an upper body movement injury 
• Do not take if patient with personal or family history of muscle disease or malignant hyperthermia (a fast rise in body temperature and severe muscle contractions triggered by exposure to certain drugs used for general anaesthesia)