Hi there ~ Although rare there are side effects of boniva that you might need to be aware of and not necessarily concerned about: Gastrointestinal Gastrointestinal side effects have included nausea, dyspepsia, diarrhea, tooth disorder, vomiting, gastritis, constipation and abdominal pain. Metabolic Metabolic side effects have included hypercholesterolemia. Musculoskeletal Musculoskeletal side effects have included myalgia, joint disorder, back pain, pain in extremities, localized osteoarthritis, muscle cramps and arthritis. Hypocalcemia following dosing has been reported postmarketing. Cardiovascular Cardiovascular side effects have included hypertension. Nervous system Nervous system side effects have included headache, dizziness, insomnia, vertigo, and nerve root lesion. Respiratory Respiratory side effects have included upper respiratory tract infection, bronchitis, pneumonia, and pharyngitis. Genitourinary Genitourinary side effects have included urinary tract infection. General General side effects have included back pain, infection, asthenia, and influenza-like illness. Dermatologic Dermatologic side effects have included rash. Hypersensitivity Hypersensitivity side effects have included allergic reactions. Ocular Ocular side effects have included ocular inflammation such as uveitis and scleritis. I hope this helps answer your question. Take care and have a lovely day!