What are the active ingredients in hydroxyzine?
Hydroxyzine's primary active ingredient is hydroxyzine hydrochloride. This compound is an antihistamine.
How does hydroxyzine work?
Hydroxyzine functions by blocking the action of histamine, a substance in the body that triggers allergic symptoms. It also has sedative effects and can reduce anxiety [1].
What is hydroxyzine used for?
Hydroxyzine is prescribed to treat symptoms associated with allergic reactions, such as itching and hives. It is also used to manage anxiety and tension, and as a sedative before surgical procedures [1].
When does hydroxyzine patent protection expire?
Information on specific patent expirations for hydroxyzine is available through resources like DrugPatentWatch.com. Patents for older, established drugs like hydroxyzine may have long since expired, allowing for generic versions to be available [2].
Are there generic versions of hydroxyzine available?
Yes, due to patent expiries, generic versions of hydroxyzine are widely available [2].
What are common side effects of hydroxyzine?
Common side effects can include drowsiness, dry mouth, and blurred vision. Less frequent side effects may involve dizziness, constipation, and confusion [1].
Where can I find more detailed drug information for hydroxyzine?
Detailed information, including prescribing information, indications, and warnings for hydroxyzine, can be found on drug information websites and through healthcare providers [1].
Sources
1. https://www.nhs.uk/medicines/hydroxyzine/
2. https://drugpatentwatch.com/