It is a beta-blocker used to treat elevated intraocular pressure (high pressure inside the eye) in people with ocular hypertension or open angle glaucoma. It lowers the pressure in the eye by decreasing the production of fluid and reduces the risk of vision loss. Always wash your hands before using Iotim Eye Drop. Use only the number of drops that your doctor has prescribed and wait for about 5 minutes between each drop. If you wear soft contact lenses, remove them before using the drops and wait for at least 15 minutes before putting them back in. If you are also using another eye medicine, wait for at least 10 minutes before using it. Read the leaflet that comes with the medicine for a full guide on how to use the drops and get the most benefit. Do not touch the tip of the dropper or bottle. This may lead to infection. You should use this medicine regularly to get the most benefit and it is best used at the same time(s) each day. If you want to stop using it, consult your doctor first. The most common side effects are burning and stinging sensation in the eye. There are other, less common, side effects affecting other parts of the body some of which may be serious as Iotim Eye Drop is absorbed into the systemic circulation. Consult your doctor if you are bothered by any side effects. You should not use this medicine if you have asthma, severe COPD (chronic obstructive pulmonary disease) or a serious heart condition. Inform your doctor if you have, or have had, coronary heart disease, heart failure, diabetes, breathing problems, an overactive thyroid gland or liver or kidney disease. Pregnant or breastfeeding women should consult their doctor before taking this medicine.