Actide 100mcg injection contains the active substance octreotide. It is a synthetic compound derived from somatostatin, a substance naturally found in the human body that inhibits the effects of certain hormones, such as growth hormones. It is used to reduce the amount of growth hormone produced by people with acromegaly (a condition in which the body produces too much growth hormone, causing enlargement of the hands, feet, and facial features; joint pain; and other symptoms) who cannot be treated with surgery, radiation, or another medication. It is also used to control diarrhea and flushing caused by carcinoid tumors (slow-growing tumors that release natural substances that can cause symptoms) and vasoactive intestinal peptide-secreting adenomas (VIP-omas; tumors that form in the pancreas and release natural substances that can cause symptoms). It is used to prevent complications following surgery of the pancreas gland.  It is also indicated to stop bleeding and to protect from re-bleeding from ruptured gastro-esophageal varices in patients suffering from chronic liver disease. This medicine is used to treat people with pituitary tumors that produce too much thyroid-stimulating hormone (TSH) when other types of treatment (surgery or radiotherapy) are not suitable or have not worked and after radiotherapy, to cover the interim period until the radiotherapy becomes fully effective. Do not use this medicine if you are allergic to octreotide or any of the other ingredients of this medicine. Inform your physician if you have gallstones, high or low blood sugar levels, vitamin B12 deficiency, and liver diseases. Actide 100mcg injection may lower your heart rate, and very high doses can cause abnormal heart rhythm, so your doctor may monitor your heart function regularly during the treatment. Inform your physician if you are pregnant or breastfeeding before initiating the treatment.