Is it ok to drink 2 10mg of antihistamine in one day?

Generally, taking two 10mg doses of an antihistamine in one day may be acceptable, depending on the specific antihistamine and your individual health circumstances. However, you should always follow the dosing instructions on the medication label or your doctor's advice. It's important to consider potential side effects and interactions with other medications you may be taking. If in doubt, consult a healthcare professional for personalized guidance.