Safe Tussin PM Night Time Cough Relief Cough Suppressant / Antihistamine. Safe Tussin ® PM Night Time Cough Relief Cough Suppressant / Antihistamine. Controls cough. Relieves sneezing & runny nose. Safe for those with: High blood pressure. Diabetes. Sugar free. Dye free. Gluten free. Alcohol free.4 fl. oz.(120 ml.).Safe cough relief. Pure and simple. Safetussin ® was developed by a pharmacist who recognized the special needs of many of this customers afflicted with high blood pressure, diabetes, an...