Pill 161 refers to a tablet containing levocetirizine dihydrochloride. This medication is primarily used to alleviate symptoms associated with various allergic conditions. As a commonly prescribed antihistamine, its main purpose is to mitigate the body’s response to allergens, providing relief from discomfort. Understanding its uses, how it functions, and important safety considerations is essential for proper management.
Identifying Pill 161
Identifying a specific pill solely by a number imprint can be challenging, as different manufacturers may use similar numbers. However, “Pill 161” commonly refers to a white, round tablet containing 5 milligrams of levocetirizine. This pill typically features the imprint “161” on one side, sometimes with an additional letter like “H” (e.g., “H 161”). Verifying the color, shape, and exact imprint is important for correct identification. Always cross-reference these physical characteristics with reliable pill identification tools or consult a healthcare professional.
Medical Conditions It Treats
Pill 161, containing levocetirizine, is primarily prescribed to manage symptoms from allergic reactions. It treats both seasonal allergic rhinitis, commonly known as hay fever, and perennial allergic rhinitis, which involves year-round allergy symptoms. These conditions often manifest as sneezing, runny nose, itchy or watery eyes, and an itchy throat. The medication helps reduce these uncomfortable responses by counteracting histamine.
It is also used for chronic idiopathic urticaria, more commonly referred to as chronic hives. This condition is characterized by persistent, itchy welts on the skin that appear without a clear identifiable cause. Levocetirizine works to alleviate the intense itching and reduce the appearance of these skin lesions. Additionally, it may be used for other general allergy symptoms and certain food allergies, providing symptomatic relief.
How Pill 161 Works
Levocetirizine, the active ingredient in Pill 161, functions as a second-generation antihistamine. It specifically targets and blocks the activity of histamine H1 receptors in the body. Histamine is a natural substance released by the immune system during an allergic reaction, leading to symptoms like itching, sneezing, and inflammation. By binding to these receptors, levocetirizine prevents histamine from exerting its effects, thereby reducing the allergic response.
This mechanism helps to diminish the discomfort associated with allergies without causing significant drowsiness, a common side effect of older antihistamines. The medication works systematically throughout the body to alleviate symptoms, offering relief by preventing the cascade of events that typically follow allergen exposure.
Safe Use and Important Considerations
For adults and children 6 years of age and older, the typical recommended dosage of Pill 161 (levocetirizine 5 mg) is one tablet taken once daily. The tablet can be ingested with or without food, allowing for flexible administration. It is important to adhere to the prescribed dosage and not exceed it, as higher doses do not typically increase efficacy but may heighten the risk of side effects.
Common side effects associated with levocetirizine may include mild drowsiness, fatigue, dry mouth, and headache. Some individuals might also experience a sore throat or cough. While generally well-tolerated, more serious, though rare, side effects can occur, such as hypersensitivity reactions, seizures, or urinary retention. If any severe or concerning side effects develop, immediate medical attention should be sought.
Certain precautions are necessary when taking Pill 161. Avoid consuming alcohol or other central nervous system depressants, as these can intensify drowsiness and impair alertness. Individuals with kidney impairment or a history of urinary retention should use this medication with caution, as dosage adjustments may be necessary. Caution is also advised for those with epilepsy due to a potential, though rare, risk of seizures.
Pill 161 can interact with other medications. Concomitant use with central nervous system depressants, including sedatives and tranquilizers, can increase sedative effects. Theophylline, a medication for respiratory conditions, may decrease levocetirizine clearance. Ritonavir, an antiviral medication, can also increase levocetirizine levels.
Inform your healthcare provider about all medications, supplements, and herbal products you are currently taking to prevent potential adverse interactions. Always consult a doctor or pharmacist before starting any new medication, especially if you have pre-existing health conditions or are pregnant or breastfeeding.