 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  if you have any serious side effects, including: jaw/ear pain, swelling of joints/hands/ankles/feet, increased or severe bone/joint/muscle pain, new or unusual hip/thigh/groin pain, black/tarry stools, vomit that looks like coffee grounds. This medication may rarely cause serious irritation and ulcers of the esophagus. If you notice any of the following unlikely but very serious side effects, stop taking alendronate and talk to your doctor or pharmacist right away: new or worsening heartburn, chest pain, pain or difficulty when swallowing. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - </s>