Allergy to sulfa drugs—Increased allergic reaction risk in patients with this condition. Hypotension (low blood pressure)—Use with caution. May make this condition worse.

Understanding the Context

Kidney disease, severe or Liver disease, severe—Use with caution. The effects may be increased because of slower removal of the medicine from the body. This medicine is also used to prevent recurrent attacks of rheumatic fever in patients who have had an allergic reaction to penicillin or sulfa drugs. Erythromycin belongs to the class of medicines known as macrolide antibiotics.

Key Insights

Allergy to sulfa drugs, history of—Should not be used in patients with this condition. Blood or bone marrow problems (eg, agranulocytosis, aplastic anemia) or Bone problems (eg, osteomalacia, osteopenia, osteoporosis) or Depression, history of or Mental illness (eg, psychosis) or Metabolic acidosis (high acid in the blood)—Use with caution. I have a sulfa allergy. Do I need to avoid certain medicines? People who have a sulfa allergy can react to antibiotics and other medicines that contain a chemical called sulfonamide (suhl-FON-uh-mide).

Final Thoughts

Sulfonamide antibiotics that can cause a reaction A number of antibiotics containing sulfonamides can trigger a reaction if you have a sulfa ... Overview A drug allergy is the reaction of the immune system to a medicine. Any medicine — over-the-counter, prescription or herbal — can trigger a drug allergy. However, a drug allergy is more likely with certain medicines. The most common symptoms of drug allergy are hives, rash and fever. But a drug allergy also may cause serious reactions.

This includes a severe, life-threatening ... Celecoxib is a nonsteroidal anti-inflammatory drug (NSAID) used to treat mild to moderate pain and help relieve symptoms of arthritis (eg, osteoarthritis, rheumatoid arthritis, or juvenile rheumatoid arthritis), such as inflammation, swelling, stiffness, and joint pain. Description Sulfamethoxazole and trimethoprim combination is used to treat infections including urinary tract infections, middle ear infections (otitis media), bronchitis, traveler's diarrhea, and shigellosis (bacillary dysentery). This medicine is also used to prevent or treat Pneumocystis jiroveci pneumonia or Pneumocystis carinii pneumonia (PCP), a very serious kind of pneumonia.