What to do if allergic to oseltamivir

Oseltamivir is mainly available in dosage forms such as capsules, granules, and dry suspensions. Generally, if an allergic reaction occurs after taking oseltamivir, immediate actions should include discontinuation of the medication, general supportive care, pharmacological treatment, seeking medical attention, and desensitization therapy. A detailed explanation is as follows:

1. Immediate Discontinuation of Medication

Once an allergic reaction is detected, administration of oseltamivir should be immediately discontinued, and further exposure to the drug should be avoided to prevent worsening of the condition.

2. General Supportive Care

Maintaining water, electrolyte, and metabolic balance, drinking plenty of warm water, and ensuring adequate rest can help maintain circulation and metabolism, and mild reactions often gradually resolve with these measures.

3. Pharmacological Treatment

For more severe allergic reactions, antihistamines such as cetirizine hydrochloride tablets, loratadine tablets, or topical corticosteroids such as hydrocortisone butyrate cream may be used under a physician's guidance to help alleviate symptoms.

4. Seeking Medical Attention

It is recommended to undergo allergen testing at a hospital, such as patch testing, to identify the specific allergen and implement appropriate interventions to prevent recurrent drug allergies.

5. Desensitization Therapy

Desensitization therapy involves gradually increasing the dose of the allergen to induce immune tolerance. This treatment should be conducted under the supervision of a specialist.

Management of oseltamivir allergy should include immediate discontinuation of the drug, symptom observation, pharmacological intervention, and prompt medical evaluation. Additionally, future precautions should include avoiding re-exposure to the allergen, adjusting diet, and monitoring for any changes in clinical condition. If any concerns or discomfort arise, timely medical consultation is advised.