Side Effects of Olopatadine Nasal Spray
Nosebleeds, headaches, and bitter taste are some of the most common side effects of olopatadine nasal spray. Less common but potentially serious side effects that require immediate medical attention include excessive drowsiness, severe or frequent nosebleeds, and allergic reactions. Other rare but possible olopatadine nasal spray side effects (occurring in less than 1 percent of people using the drug) include throat irritation, drowsiness, and fatigue.
As with any medicine, side effects are possible with olopatadine nasal spray (Patanase®). However, not everyone who takes the medication will experience side effects. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with olopatadine nasal spray. Your healthcare provider can discuss a more complete list of olopatadine nasal spray side effects with you.)
Some side effects with olopatadine nasal spray, while occurring infrequently, are potentially serious and should be reported immediately to your healthcare provider. These include, but are not limited to:
- Excessive drowsiness
- Severe or frequent nosebleeds
- Signs of an allergic reaction, including an unexplained rash, hives, itching, and unexplained swelling.