 <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] fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.The precautions of Phenobarbital-Hyoscyamine-Atropine-Scopolamine Oral: Before taking this medication, tell your doctor or pharmacist if you are allergic to hyoscyamine, atropine, or scopolamine; or to anti-seizure medications (such as carbamazepine, fosphenytoin, oxcarbazepine, phenytoin, primidone); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of: personal or family history of glaucoma (angle-closure type), problems with urination (due to enlarged prostate, a blocked urinary tract), other stomach/intestinal problems (such as slow gut, blockage, ulcerative colitis, infection, little/no stomach acid, ileostomy/colostomy patients with diarrhea), overactive thyroid, heart problems </s>