Why does my foot hurt more after taking colchicine tablets?

Generally, if foot pain worsens after taking colchicine tablets, it is due to the drug's effects on the nervous and cardiovascular systems. The specific details are as follows:

Colchicine tablets are commonly used to treat acute gouty arthritis and to prevent recurrent episodes of acute gouty arthritis. The main active ingredient in colchicine tablets is colchicine, which is toxic. Accidental ingestion of medications containing colchicine may lead to poisoning symptoms such as nausea, vomiting, diarrhea, dizziness, and sweating. If a patient experiences increased foot pain after taking colchicine tablets, this is generally caused by colchicine’s impact on the nervous and cardiovascular systems. Colchicine can inhibit neuronal electrical activity and reduce the speed of nerve signal transmission, thereby affecting pain perception and conduction. Additionally, colchicine can dilate blood vessels and increase blood flow, potentially exacerbating the severity of pain. If the above symptoms occur, the patient should immediately stop taking colchicine tablets and seek medical attention promptly. Doctors will make a diagnosis and provide appropriate treatment based on the individual patient's condition. Treatment measures may include gastric lavage and fluid replacement.

It should be noted that colchicine tablets are toxic. If their use is necessary, they should only be taken under a doctor's supervision and strictly according to the dosage and instructions provided in the medication leaflet.