Do not take a risedronate tablet if you cannot sit upright or stand for at least 30 minutes. Risedronate 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 risedronate tablet first thing in the morning, at least 30 minutes before you eat or drink anything or take any other medicine.
Take each dose with a full glass (6 to 8 ounces) of water. Use only plain water (not mineral water) when taking a risedronate tablet.
For at least the first 30 minutes after taking a risedronate tablet, do not lie down or recline; do not eat or drink anything other than plain water; and do not take any other medicines including vitamins, calcium, or antacids.
Some people using medicines similar to risedronate have developed bone loss in the jaw, also called osteonecrosis of the jaw. Symptoms of this condition may include jaw pain, swelling, numbness, loose teeth, gum infection, or slow healing after injury or surgery involving the gums. You may be more likely to develop osteonecrosis of the jaw if you have cancer or have been treated with chemotherapy, radiation, or steroids. Other conditions associated with osteonecrosis of the jaw include blood clotting disorders, anemia (low red blood cells), and pre-existing dental problems.
Risedronate is only part of a complete program of treatment that may also include diet changes, exercise, and taking calcium and vitamin supplements. Follow your diet, medication, and exercise routines very closely.