According to Baidu Health, under normal circumstances, Merrill Lynch can keep it in the refrigerator for 3-5 months.

Merrill Lynch is a drug for treating headache, neuralgia, toothache and other diseases. If the unopened Merrill Lynch is stored in the refrigerator, drugs can generally be stored at low temperature for 3-5 months, and the storage time should not be too long. If the storage time is too long, the drug effect will evaporate with time, and the quality of the drug will decrease, which will not be particularly effective in treating diseases. So it is not recommended to store it for too long.

If Merrill Lynch drugs are kept unopened in the refrigerator or at low temperature in daily life, they will generally be kept for a long time, and they can be taken if they do not exceed the expiration date. If it has been unsealed, please take it as soon as possible to ensure the best curative effect.