Like all other drugs when using these types of indigestion as well and stomach related medication one must always be aware of side effects that may occur. The extent of these side effects can vary from person to person but there are always a number of side effects. These side effects may be extremely serious and causes a great deal of harm to an individual’s body and or the proper functioning of a person. And these effects can be mild and bearable by individuals. Omeprazole is known to have certain first time use side effects that are very mild and not at all harmful to the user.

There have been a number of tests and trials conducted on Omeprazole to check the extent and frequency of severe and mild side effects. The more severe and serious effects are the sudden development of allergic reactions these could be in the form of swelling and rashes. Swelling in the mouth, face, tongue, throat and even the wind pipe are dangerous side effects of this drug.

The use of this drug is to be stopped if the above stated effects take place. However the more mild side effects are nausea, stomach pain, mild stomach discomfort and head aches. The mild effects tend to wear away with after the first few doses and the use of this drug is recommended to carry on if the side effects are not too much of a discomfort to the user.