Call us
List of Medications


Lansoprazole is a custom pharmacy drug classified as a proton pump inhibitor. It is largely used as an agent for decreasing the stomach's production of acid. Proton pump inhibitors are prescribed to treat those who suffer from regular bouts with gastroesophageal reflux disease, commonly referred to as simply, GERD. Lansoprazole is also used to treat ulcers caused by helicobacter pylori (H. pylori) bacteria.


Lansoprazole is often given as a capsule or oral suspension, though your compounding pharmacist can work with your doctor if another method of delivery is necessary for your condition or preference. Take lansoprazole before eating unless instructed to do otherwise by your doctor. If prescribed an oral suspension it is important to shake the suspension well before taking. Never chew or break delayed-release capsules. Ask your doctor for directions specific to your method of delivery and dosage. Consult with your compounding pharmacist if you have further questions after being prescribed lansoprazole.


Side effects may differ from individual to individual. Until you begin taking this drug you will not know how it will affect you so be aware of any changes you feel. Commonly seen side effects are as follows:

  • Constipation
  • Diarrhea
  • Nausea
  • Stomach Pain
  • Headache

Other side effects are possible so watch closely and seek medical assistance if you feel it is needed, and certainly if any side effects are growing in intensity, lingering/persisting, or are worrisome.

Severe Side Effects:

Some patients may experience severe side effects that warrant immediate attention. Hopefully you will not experience any severe side effects at all while using lansoprazole but if you do, see your doctor right away or seek medical treatment immediately. Some possible severe side effects are listed below. Note this is only a partial list and you may experience severe side effects not on this list. If you experience anything that feels severe, get medical help right away.

  • Seizure
  • Kidney Problems
  • Severe Stomach Pain
  • Watery Diarrhea
  • Bloody Diarrhea
  • Any Symptoms of Low Magnesium (Ask your doctor for more information.)

Allergic Reaction:

If you experience any signs of an allergic reaction, get immediate medical assistance. Allergic reactions can be very dangerous. Possible signs of an allergic reaction may be:

  • Hives
  • Trouble Breathing
  • Swelling (particularly in the throat, tongue, face, or lips)


Do not take this drug unless your primary care doctor approves its use.

Lansoprazole may be contraindicated for anyone with any of the following conditions, diseases, or situations:

  • Low Magnesium in Blood
  • Insufficient Vitamin B12
  • Liver Disease
  • Broken Bone
  • Osteoporosis
  • Interstitial Nephritis
  • Clostridium Difficile Infection
  • "It is rare to find health professionals who are so willing to educate the patient on what they need to know."

    Clair C. | West Hollywood, CA