I was taking lisinopril/hctz 20/12.5 mg. once a day and my doctor changed it to 10 mg of lisinopril once a day and I have an allergy to sulfa drugs.  I just noticed that the drug should not be taken if there is an allergy to sulfa drugs.  My blood pressure has been going up and my doctor is on vacation.  What do you suggest?
HiT hanks for asking ChatDoctorI have gone through your query. Lisinopril doesn't contain any sulfa. It contains sulfates. Sulfa and sulfates are two very different compounds. You may be allergic to both, but the two compounds are unrelated. Sulfa is short for sulfonamides which is a type of antibiotic. Sulfates are chemical salts and not related to sulfonamides. But if you combine HY Chat Doctor. Most people who are allergic to sulfa are allergic to HY