Always wash your hands before using Opta Eye Drop. Use only the number of drops that your doctor has prescribed. 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 done at the same time each day. If you want to stop using it, consult your doctor first.

The most common side effects are irritation or pain in the eye, watery or dry eyes, blurred vision, increased heart rate, and blood pressure. There are other, less common, side effects affecting other parts of the body, some of which may be serious. Read the leaflet that comes with the medicine and consult your doctor if you are bothered by any side effects. Pregnant or breastfeeding women should also consult their doctor before taking this medicine.