The side effects of hypothyroidism medications do not cause low platelets. The main hypothyroidism drugs are levothyroxine sodium tablets and thyroid tablets. 1. Levothyroxine Sodium Tablet: If patients overdose, some adverse reactions will occur, including arrhythmia, palpitation, angina, vomiting, diarrhea, headache, tremor, excitement, insomnia, restlessness, flushing, excessive sweating, weight loss and so on. The above reactions usually disappear after the dosage is reduced or the drug is discontinued. 2. Thyroid tablets: in fact, it is thyroid hormone, and its normal use generally has no adverse reactions. However, similar reactions to those of levothyroxine sodium tablets may occur after overdose. Hypothyroidism medication is generally a lifelong drug, the purpose of treatment is to supplement the body’s lack of thyroid hormone, so it will not cause platelet reduction. If the above symptoms occur, it is recommended to go to the hospital in time for early and regular treatment. All of the above medications should be used under the guidance of a doctor, avoid self-medication.