Drug Interaction Report

Using risedronate together with amikacin can cause damage to the kidneys and hypocalcemia (low blood calcium). Symptoms of kidney damage include swelling, weight gain, feeling short of breath, drowsiness, confusion, mood changes, increased thirst, loss of appetite, nausea and vomiting, pain in your lower back, and urinating more or less than usual or not at all. Symptoms of hypocalcemia include muscle spasms, convulsions, mental changes (irritability, depression, psychosis), increased pressure on the brain, and an irregular heartbeat. If you take both medications together, tell your doctor if you have any of these symptoms. You may need a dose adjustment or special tests to safely use these medications together. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Food may reduce the absorption of risedronate, which may lead to lower blood levels of the medication and possibly reduced effectiveness. You should take risedronate first thing in the morning, at least 30 minutes before you eat or drink anything or take any other medication. Take each dose with a full glass (6 to 8 ounces) of water, and use only plain water (not mineral or vitamin water). Do not take risedronate if you cannot sit upright or stand for at least 30 minutes. Because risedronate can cause irritation and ulcer 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. Talk to your doctor or pharmacist if you have questions on how to take this or other medications you are prescribed. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.