Side effects

Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.

Slower than normal heart beat (bradycardia)

Inability of the heart to pump blood efficiently (heart failure)

Disturbed sleep

Fatigue

Disturbances of the gut such as diarrhoea, constipation, nausea, vomiting or abdominal pain

Dizziness

Breathing difficulties due to a narrowing of the airways (bronchospasm)

Cold extremities, eg hands and feet

Rash

The side effects listed above may not include all of the side effects reported by the drug's manufacturer. For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.

How can this medicine affect other medicines?

When taken together with other medicines that decrease blood pressure there is an increased risk of a large drop in blood pressure. There may be an increased risk of slow heart rate when timolol is taken with digoxin. In diabetic patients, timolol can prolong the lowering of blood sugar (hypoglycaemia) caused by insulin or other antidiabetic medicines. Individuals should monitor their blood sugar, as timolol can also mask the signs of hypoglycaemia. When timolol is taken together with calcium channel blockers such as verapamil, nifedipine or diltiazem, the risk of slow heart rate, hypotension and heart failure may be increased. If timolol is taken together with clonidine, there is a risk of a rebound increase in blood pressure if clonidine is stopped. Timolol should be stopped several days before slowly stopping the clonidine. This medicine should not be taken with MAOI antidepressants. The use of certain anaesthetics with timolol may increase the risk of low blood pressure and slow heart rate. Anti-arrhythmic medicines such as amiodarone or dipyridamole may increase the risk of slow heart rate when taken with this medicine. Non-steroidal anti-inflammatory drug (NSAIDs) such as indomethacin may reduce the antihypertensive effects of timolol. Rifampicin may increase the removal of this medicine from the body.

Other medicines containing the same active ingredients

Betim

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