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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Is It Safe To Take Lisinopril While Having Allergy To Sulpha Drugs?

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?
Thu, 13 Feb 2014
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General & Family Physician,  's  Response
Hi
Thanks for asking HCM
I have gone through your query.Lisinopril doesnt contain any sulfa.It contain sulfites. Sulfa and sulfites are two very different compounds. You may be allergic to both but the two compounds are unrelated. Sulfa is short for sulfonomides which is a type of antibiotic. Sulfites are chemical salts and not related to sulfonomides.But if you combine Hydrochlorthiazide also then there is a high chance of allergy.Most people who are allergic to sulfa are allergic to hydrochlorthiazide also.Hope this may help you.
Let me know if you have any further query.
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Is It Safe To Take Lisinopril While Having Allergy To Sulpha Drugs?

Hi Thanks for asking HCM I have gone through your query.Lisinopril doesnt contain any sulfa.It contain sulfites. Sulfa and sulfites are two very different compounds. You may be allergic to both but the two compounds are unrelated. Sulfa is short for sulfonomides which is a type of antibiotic. Sulfites are chemical salts and not related to sulfonomides.But if you combine Hydrochlorthiazide also then there is a high chance of allergy.Most people who are allergic to sulfa are allergic to hydrochlorthiazide also.Hope this may help you. Let me know if you have any further query.