Possible side effects of Nexium include difficulty having a bowel movement, passing gas and dry mouth, according to Drugs.com. Less common side effects include changes in taste or vision, back pain, hearing loss and hiccups.
Nexium may cause a fast, slow, irregular or pounding heartbeat, notes Drugs.com. It may also cause a ringing, a buzzing or another type of noise in the ears. Nexium can cause hair to thin or fall out, and it may cause swelling or soreness of the breasts in females and males.
Other side effects of Nexium include black, bloody or tarry stools, dizziness, a cough and difficulty breathing, states Drugs.com. Some people may experience tightness or pain in the chest after taking Nexium. Other possible side effects include discomfort or pain in the throat or upper stomach, skin rash, hives and itching. Nexium may cause some people to feel unusually weak or tired.
Nexium can cause swelling that resembles hives on the face, throat, lips and tongue, according to Drugs.com. Hive-like swelling can also occur on the sex organs, feet, legs or hands. Nexium can cause skin to blister, peel or become loose, and it may also cause unexplained bruising or bleeding. Other possible side effects of Nexium include vomiting, nausea, loss of appetite and sore throat.
Nexium can cause yellowing of the skin or eyes, drowsiness, chills and a high fever, reports Drugs.com. Some people may experience muscle twitching or spasms after taking Nexium. Nexium may also cause severe diarrhea, which may be watery or bloody.