 <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]  include antacids, didanosine solution, quinapril, vitamins/minerals, dairy products (such as milk, yogurt), and calcium-enriched juice. These products bind with doxycycline, preventing your body from fully absorbing the drug. When using to prevent malaria, take this medication as directed by your doctor, usually once daily, starting 1 to 2 days before travel. Continue to take this medication daily while in the malarious area. Upon returning home, you should keep taking this medication for 4 more weeks. If you are unable to finish this course of doxycycline, contact your doctor. Do not crush or chew the medication. Swallow the capsules whole. If you have difficulty swallowing the capsule, the capsule may be opened and the contents sprinkled onto cool applesauce and taken immediately as directed. If you have difficulty swallowing the tablet, the tablet may be broken up carefully and the contents (pellets) sprinkled onto cool applesauce and taken immediately as directed. Make sure not to crush or damage the pellets when breaking up the tablet. Do not prepare a supply in advance. Do not chew the food/medication mixture because doing so may cause the drug to be released too quickly, increasing side effects. Drink a glass </s>