Generic Celestone can cause minor and major side effects, including excess sweat, dry skin, thinning skin, skin discoloration, bruising, acne, changes in mood, insomnia, nausea, bloating, stomachache, wounds healing very slowly, dizziness, spinning sensation, headache, body fat changes, allergic reactions (such as trouble breathing, swelling, and hives), coughing up of blood, vision problems, tarry or bloody stools, extremely high blood pressure (with symptoms like seizures, shortness of breath, nervousness, uneven heartbeats, buzzing within the ears, disorientation, confusion, blurry vision, an extreme headache), low potassium (signs include uneven heart rate, being very thirsty, discomfort of the legs, the muscles being limp or weak, and urinating with more frequency), fast weight gain, suicidal feelings, extreme depression and pancreatitis.