Excessive use of some of the following common family drugs may lead to serious consequences and even coma and death： **Analgesics**： -**Acetaminophen**: Overdose can cause serious liver damage, which in turn can cause serious conditions such as multi-organ dysfunction, which may lead to coma or even death. **Cold medicine**： -**Compound preparations containing ephedrine**: Excessive use may cause a sharp increase in blood pressure, arrhythmia, etc., and in severe cases, it can be life-threatening and lead to coma. **Cardiovascular system drugs**： -**Antihypertensive drugs**: Overdose may cause excessive blood pressure, cause insufficient blood supply to the brain, shock, etc., and cause coma. -**Cardiac glycosides (such as Digoxin, etc.)**: Overdose can cause severe arrhythmia, cardiotoxicity, leading to coma, cardiac arrest, etc. **Sedative hypnotics**： -**Benzodiazepines (such as valium, etc.)**: Overdose can lead to deep sedation, respiratory depression, etc., and can cause coma and death in severe cases. **Hypoglycemic drugs**： - **Insulin**: Excessive use can cause hypoglycemic coma, and if not corrected in time, it can cause irreversible damage to the brain and other organs and even death. -**Sulfonuras, hypoglycemic drugs**: Overdose can easily lead to hypoglycemia, severe hypoglycemia can lead to coma and other serious consequences. **Antipsychotic drugs**: Such as chlorpromazine, excessive use can cause extrapyramidal reactions, hypotension, respiratory depression, etc., leading to coma, etc. **Antiepileptic drugs**: Overdose may affect the normal function of the central nervous system, causing coma, respiratory depression, etc. Overdose of these drugs is extremely dangerous, and you must not take a large amount on your own. If you take an overdose by mistake, you should seek medical attention immediately for first aid.