Just remember these are the uncommon but they do exist, upper respiratory includes ears nose and throat, muscle cramps and pain can be in any part of the body. Nexium and Prilosec formula are virtually the same, they just tossed it around differently gave it a new name, and a higher price cuz people were screaming for OTC equivalent PPI for Prilosec or so the pharmacists say, and I tend to believe them over the Drug com or Dr. If you notice upper resp and throat pain are at the bottom of the list.
Less common or rare side effects may include:
Abdominal swelling, abnormal dreams, aggression, anemia, anxiety, apathy, back pain, breast development in males, blood in urine, changes in liver function, chest pain, confusion, constipation, cough, depression, difficulty sleeping, discolored feces, dizziness, dry mouth, dry skin, fatigue, fever, fluid retention and swelling, fluttery heartbeat, frequent urination, gas, general feeling of illness, hair loss, hallucinations, hepatitis, high blood pressure, hives, irritable colon, itching, joint and leg pain, loss of appetite, low blood sugar, muscle cramps and pain, nervousness, nosebleeds, pain, pain in testicles, rapid heartbeat, rash, ringing in ears, skin inflammation, sleepiness, slow heartbeat, stomach tumors, taste distortion, tingling or pins and needles, throat pain, tremors, upper respiratory infection, urinary tract infection, vertigo, weakness, weight gain, yellow eyes and skin