Possible Side Effects of Oxybutynin ER
Oxybutynin ER has been studied thoroughly in clinical trials. In these studies, the side effects that occur in a group of people taking the drug are documented.
In these studies, the most common side effects of
oxybutynin ER included:
Other common oxybutynin ER side effects, occurring in 5 to 8 percent of people, included:
Less Common Oxybutynin ER Side Effects
There are other less common oxybutynin ER side effects that can occur. These side effects occur in 2 to 5 percent of people taking the drug. For these side effects, it is difficult to tell whether they are actually caused by oxybutynin ER or something else.
These less common oxybutynin ER side effects include, but are not limited to:
- Abdominal pain (stomach pain)
- Nasal dryness
- Accidental injury
- Back pain
- Flu symptoms (such as fever, chills, or body aches)
- High blood pressure (hypertension)
- Feelings of a rapidly or forcefully beating heart (known as heart palpitations)
- Flushing
- Gas
- Gastroesophageal reflux disease (GERD)
- Arthritis
- Insomnia
- Nervousness
- Upper respiratory tract infection (such as the common cold)
- Cough
- Sinus infection
- Bronchitis
- Sore throat
- Dry skin.