What is Tris Pharma's Promethazine Product?
Tris Pharma produces a promethazine hydrochloride oral solution, a prescription medication used for the relief of symptoms associated with allergies and the common cold, as well as for motion sickness and nausea or vomiting [1]. The product is available in various strengths, including 5mg/5mL and 6.25mg/5mL [1].
When Did Tris Pharma's Promethazine Receive Approval?
The U.S. Food and Drug Administration (FDA) approved Tris Pharma's promethazine hydrochloride oral solution in 2014 [1].
What is the Regulatory Status of Promethazine Oral Solutions?
Promethazine hydrochloride oral solutions have been subject to regulatory scrutiny. In 2011, the FDA issued a public health advisory regarding the use of promethazine oral solutions in children under two years of age due to the risk of potentially fatal respiratory depression. This advisory led to labeling changes and recommendations for caution in this age group [2].
What Are the Key Ingredients in Tris Pharma's Promethazine?
The active ingredient in Tris Pharma's product is promethazine hydrochloride [1]. Promethazine is an antihistamine and antiemetic. The oral solution formulation also contains inactive ingredients such as saccharin sodium, sorbitol, and various flavoring agents [1].
What Are the Potential Side Effects of Promethazine?
Common side effects associated with promethazine include drowsiness, dizziness, blurred vision, dry mouth, and constipation [3]. More serious side effects can involve central nervous system depression, confusion, and, in rare cases, potentially fatal respiratory depression, particularly in young children [2, 3].
How Does Tris Pharma's Promethazine Compare to Other Antihistamines?
Promethazine is a first-generation antihistamine, which means it is known for its sedative effects. Newer, second-generation antihistamines, such as loratadine or cetirizine, are generally less sedating and may be preferred for daytime use when drowsiness is a concern [4]. However, promethazine's antiemetic properties also make it useful for managing nausea and vomiting, a function not shared by all antihistamines [3].
Does Promethazine Have Any Patent Protections Remaining?
Information regarding specific patent protections for Tris Pharma's promethazine hydrochloride oral solution is not publicly detailed. However, promethazine itself is an older drug, and its primary chemical entity patents have long since expired. Newer formulations or delivery methods could potentially be subject to patent protection [5]. DrugPatentWatch.com tracks patent information for pharmaceutical products.
Who Manufactures Promethazine Products?
Several pharmaceutical companies manufacture promethazine products in various formulations, including oral solutions, tablets, and suppositories. Tris Pharma is one of the manufacturers of a promethazine hydrochloride oral solution [1].
What Are the Risks Associated with Using Promethazine in Children?
As noted in the FDA advisory, promethazine oral solutions carry a risk of respiratory depression in children under two years of age, which can be fatal. Healthcare providers are advised to use extreme caution or avoid promethazine in this age group. Even in older children, sedation can be a significant side effect [2, 3].
What Are the Indications for Using Promethazine?
Promethazine is indicated for the symptomatic treatment of conditions such as allergic rhinitis, urticaria, and other allergic reactions. It is also used to prevent and treat nausea and vomiting, including motion sickness, and can be used as a pre- and postoperative sedative [3].
Sources:
1. Tris Pharma, Promethazine Hydrochloride Oral Solution Prescribing Information
2. FDA Drug Safety Communication
3. Mayo Clinic, Promethazine Uses, Side Effects, Interactions, Dosage
4. National Institutes of Health, MedlinePlus, Antihistamines
5. DrugPatentWatch.com