Our Zoladex (goserelin acetate implant) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Get emergency medical help if you have  signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat. When you start treatment with goserelin, your tumor symptoms may get worse for a short time. Worsening of a prostate tumor may increase pressure on your spinal cord or urinary tract. Tell your doctor right away if you have symptoms such as: back pain, painful or difficult urination, loss of movement in any part of your body, or loss of bowel or bladder control.