 <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]  diet aids) because they may contain ingredients that could increase your heart rate or blood pressure. Ask your pharmacist about the safe use of those products. This medication may interfere with certain medical/lab tests (including urine 5-HIAA/VMA levels, brain scan for Parkinson's disease), possibly causing false test results. Make sure lab personnel and all your doctors know you use this drug. Does Robafen CF interact with other drugs you are taking? Enter your medication into the WebMD interaction checker Check InteractionThe overdose of Robafen CF (Phenylephrine) Oral: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: agitation, confusion, hallucinations, seizures.  Notes If your doctor has prescribed this medication, do not share it with others. Keep all medical and lab appointments.  Missed Dose If you are prescribed this medication on a regular schedule and miss a dose, take it as soon as you remember. If it is near the time of the next </s>