 <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]  various conditions such as headache, toothache, menstrual cramps, or muscle aches.Aspirin is known as a salicylate and a nonsteroidal anti-inflammatory drug (NSAID). It relieves pain and decreases swelling. Caffeine may help increase the effects of aspirin on pain. How to use Back & Body Pain Reliever If you are taking the over-the-counter product to self-treat, read and follow all directions on the product package before taking this medication. If you have any questions, consult your pharmacist. If your doctor has prescribed this medication, take it as directed. Take this medication by mouth as directed by your doctor, usually every 6 hours. If you have stomach upset while taking this medication, take it with food or milk. Take this medication with a full glass of water (8 ounces/240 milliliters) unless your doctor directs you otherwise. Do not lie down for at least 10 minutes after taking this medication. If you are using the powder packets, dissolve the powder on tongue and follow with a full glass of water. The dosage is based on your medical condition and response to treatment. Do not increase your dose or use this drug more often or for longer than directed. Your condition will not improve </s>