• Aciphex blocks acid production in the stomach. It is prescribed for the short-term (4 to 8 weeks) treatment of sores and inflammation in the upper digestive canal, gastroesophageal reflux disease (GERD or heartburn), and other conditions involving excessive stomach acid production.

How should you take this medication?

• Take Aciphex once a day with a full glass of water.
   
• Do not break, chew, or split the tablets. Swallow them whole.
   
• Do not stop taking aciphex  even if you begin to feel better. Your symptoms may improve before your condition is fully treated.
   
• If you miss a dose, use it as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Do not take two doses at once.

General Precautions with Aciphex

• Tell your doctor if you have ever had any unusual or allergic reaction to rabeprazole. Before using this medication, tell your doctor or pharmacist your medical history, especially of: severe liver disease, other stomach problems.
   
• Aciphex may cause increased sensitivity to the sun. Avoid exposure to the sun, sun lamps, or tanning booths until you know how you react to Aciphex.
   
• This medication should be used only when clearly needed during pregnancy. Studies have not been done in humans. However, studies in animals have not been shown that rabeprazole causes harm to the fetus.

What are the possible side effects of Aciphex?

• Aciphex is generally well tolerated. The most common side effect is headache. Stop taking rabeprazole and seek emergency medical attention if you experience an allergic reaction to rabeprazole.
   
• Less serious side effects from rabeprazole are also uncommon. Continue to take rabeprazole and talk to your doctor if you experience, headache, upset stomach, diarrhea or  rash.