What is the reason for vomiting blood after taking targeted drugs for thyroid cancer

Thyroid cancer patients vomit blood after taking targeted drugs, which may be caused by adverse drug reactions, drug allergies, drug irritation, etc. It is recommended to seek medical treatment in time and receive targeted treatment under the guidance of a doctor after a clear diagnosis.

1. Adverse drug reactions: If thyroid cancer patients experience gastrointestinal discomfort symptoms such as nausea and vomiting after taking targeted drugs, it may cause damage to the esophageal mucosa, resulting in vomiting blood. At this time, you can follow the doctor's advice to replace other targeted drugs, such as apatinib mesylate tablets;

2. Drug allergy: Some thyroid cancer patients are allergic to the ingredients in targeted drugs. They will experience symptoms such as skin itching and rash after taking the drugs. In severe cases, they may also experience laryngeal edema and difficulty breathing. In this case, you need to stop taking the drugs immediately and use antihistamines such as loratadine tablets for anti-allergic treatment as prescribed by your doctor;

3. Drug stimulation: If the thyroid cancer patient has peptic ulcer or bleeding disease, taking targeted drugs will aggravate the condition and cause vomiting blood. At this time, it is necessary to stop taking the medication immediately and follow the doctor's advice to use acid inhibitors such as omeprazole enteric-coated capsules to inhibit gastric acid secretion, as well as drugs such as colloidal pectin bismuth capsules to protect the gastric mucosa for treatment.

In addition to the above factors, it may also be related to abnormal liver function. Patients are advised to eat a light diet and avoid spicy and irritating foods to avoid aggravating the condition.