Actonel (risedronate sodium) tablets is a pyridinyl bisphosphonate that inhibits osteoclast-mediated bone resorption and modulates bone metabolism. Risedronic acid (INN) or risedronate sodium (USAN) is a bisphosphonate used to strengthen bone, treat or prevent osteoporosis, and treat Paget's disease of bone.
Take Actonel exactly as your doctor prescribes. Do not take a Actonel tablet if you cannot sit upright or stand for at least 30 minutes. Actonel can cause serious problems in the stomach or esophagus (the tube that connects your mouth and stomach). You will need to stay upright for at least 30 minutes after taking this medication.
Take the Actonel tablet first thing in the morning with a full glass (6 to 8 ounces) of water, at least 30 minutes before you eat or drink anything or take any other medicine.
Before taking risedronate, tell your doctor or pharmacist if you are allergic to it; or to other bisphosphonates (e.g., alendronate, etidronate, pamidronate); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems.
To make sure you can safely take Actonel, tell your doctor if you have any of these other conditions:
low blood calcium (hypocalcemia);
a vitamin D deficiency;
an ulcer in your stomach or esophagus.
Store Actonel at 77 degrees F (25 degrees C). Keep away from heat, moisture, and light. Do not store in the bathroom. Keep Actonel out of the reach of children and away from pets.