Lidocaine 23%/Tetracaine 7% Topical Cream is a compounded medication specifically formulated to provide powerful local anesthesia by combining two potent anesthetic agents. Lidocaine, a well-known amide local anesthetic, works by blocking sodium channels and thereby reducing the rate of depolarization of the cell membrane. This action inhibits the initiation and conduction of nerve impulses, leading to a loss of sensation in the applied area. Tetracaine, an ester local anesthetic, complements lidocaine's action by also impeding the influx of sodium ions across neuronal membranes, further enhancing the anesthetic effect. The higher concentration of lidocaine to tetracaine in this formulation is designed to maximize the numbing effect while maintaining a safe profile for topical use.

The cream is compounded into a semisolid preparation that is dispensed in a pump mechanism. This delivery system is engineered to provide a convenient and controlled application, ensuring that the precise amount of medication is administered to the affected area. The pump mechanism also helps in maintaining the sterility and integrity of the product, reducing the risk of contamination that can occur with traditional jar packaging. The cream base is specifically chosen for its ability to facilitate the absorption of the active ingredients through the skin, providing localized relief without significant systemic absorption.

This compounded formulation is primarily used for procedures requiring superficial anesthesia of the skin, such as before dermatological procedures (e.g., laser hair removal, tattoo application or removal, and minor skin surgeries). It is also beneficial in providing relief from chronic painful conditions such as neuropathies or certain types of neuralgia. The onset of action is relatively rapid, and the duration of anesthesia is sufficient for most minor procedures and interventions.

For patients and prescribers considering the use of Lidocaine 23%/Tetracaine 7% Topical Cream, it is important to be aware of potential contraindications, such as allergies to local anesthetics, and to use the medication as directed to avoid systemic toxicity. The cream should be applied to intact skin only and not to mucous membranes or broken skin. Patients should also be advised to avoid applying heat to the treated area as it may increase absorption, potentially leading to increased systemic levels of the drug.

As compounding pharmacists at Bayview Pharmacy, we are committed to ensuring the safety and efficacy of our formulations. We are available to answer any questions and provide additional information to both patients and prescribers. Our goal is to support the therapeutic needs of our patients with customized medication solutions. If you have any questions or require further assistance, please do not hesitate to reach out to us.

Lidocaine and tetracaine are both local anesthetics used topically to numb the surface of the skin. The combination of lidocaine 23% and tetracaine 7% in a topical cream is typically used for procedures that require local anesthesia of the skin, such as laser hair removal, tattoo application or removal, and minor surgical procedures. While the risk of systemic drug interactions is generally low with topical application due to minimal systemic absorption, there are still potential interactions that should be considered.

Patients should be advised to inform their healthcare providers of all medications they are currently taking, including prescription drugs, over-the-counter medications, and herbal supplements. Particular caution should be exercised if the patient is taking class I antiarrhythmic drugs (such as tocainide and mexiletine) or other local anesthetics, as these may increase the systemic effects of lidocaine and tetracaine, potentially leading to increased risk of systemic toxicity such as CNS depression and cardiac effects.

Concomitant use of certain medications that inhibit cytochrome P450 3A4 (CYP3A4) enzymes, such as macrolide antibiotics (e.g., erythromycin), azole antifungals (e.g., ketoconazole), and protease inhibitors (e.g., ritonavir), may theoretically increase lidocaine plasma concentrations by reducing its hepatic metabolism, although this is more of a concern with injectable forms of lidocaine. Caution is also advised when using the cream in patients taking beta-blockers or calcium channel blockers, as these medications can also affect cardiac conduction and potentiate the effects of local anesthetics.

Patients with hepatic impairment may have a reduced clearance of lidocaine and tetracaine, leading to increased systemic concentrations. Therefore, these patients should be monitored closely for signs of toxicity. Additionally, the application of the cream to large surface areas or over prolonged periods, especially under occlusive dressings, could increase systemic absorption and the risk of dose-related toxicity.

It is important to apply the cream as directed, avoiding application to broken or inflamed skin, as this can increase systemic absorption. The cream should not be applied near the eyes or on mucous membranes, as this could result in systemic absorption and increased risk of side effects. Patients should also be advised to avoid applying heat to the treated areas, as this can increase absorption of the active ingredients.

Lastly, patients should be instructed to report any signs of local or systemic adverse effects immediately, including but not limited to dizziness, blurred vision, tremors, depression, or irregular heart rate. If you have any questions or concerns regarding the use of this formulation or potential drug interactions, please reach out to us at Bayview Pharmacy for further assistance.

Lidocaine 23%/Tetracaine 7% Topical Cream is a compounded medication that combines two local anesthetics, lidocaine and tetracaine, in a semisolid cream base. This formulation is specifically designed to provide topical anesthesia by numbing the skin and underlying tissues in a localized area. The cream is dispensed in a pump mechanism, which allows for easy, controlled, and hygienic application to the desired skin surface.

Lidocaine is an amide-type local anesthetic that works by blocking sodium channels in the neuronal cell membrane. This action inhibits the initiation and conduction of nerve impulses, thereby providing a numbing effect. Tetracaine, on the other hand, is an ester-type local anesthetic that also blocks sodium channels, but with a slower onset and longer duration of action compared to lidocaine. When combined, these two anesthetics offer a rapid onset of anesthesia with an extended duration of action, making the cream particularly useful for procedures that require a longer period of numbing.

The Lidocaine 23%/Tetracaine 7% Topical Cream is indicated for use on intact skin in adults to provide local analgesia for various minor medical procedures, such as dermal filler injections, laser hair removal, tattoo application and removal, and other dermatological procedures. It is also used to numb the skin before certain types of biopsies or when inserting an intravenous catheter. The cream should be applied to the skin prior to the procedure, with the onset of anesthesia typically occurring within 20 to 30 minutes after application.

It is important for both patients and prescribers to understand that while this cream is effective at numbing the skin, it should be used with caution. The maximum dose and area of application should not be exceeded, as this could lead to increased systemic absorption and potential toxicity. Additionally, the cream should not be applied to broken or inflamed skin, as this could also increase systemic absorption. Patients with a history of hypersensitivity to local anesthetics of the amide or ester type should not use this product.

For optimal use, the skin should be clean and dry before application. The amount of cream needed will depend on the size of the area to be numbed. After application, the area may be covered with an occlusive dressing to enhance absorption, if directed by a healthcare provider. The duration of effect will vary depending on the amount of cream applied and the individual patient's response.

If you have any questions about the Lidocaine 23%/Tetracaine 7% Topical Cream or its appropriate use, please reach out to us at Bayview Pharmacy. Our team of compounding pharmacists is here to provide guidance and support to ensure the safe and effective use of this medication.

Lidocaine and tetracaine are both local anesthetics commonly used for numbing the skin in various medical and aesthetic procedures. The Lidocaine 23% / Tetracaine 7% Topical Cream is an example of a compounded formulation that combines these two active ingredients in a concentration higher than what is usually found in commercial products. This makes it particularly suited for more significant numbing effects in preparation for procedures that may cause discomfort on the skin's surface.

In addition to its primary usage for numbing the skin before procedures such as dermal filler injections, minor surgeries, laser treatments, or other dermatological interventions, this topical cream has other potential uses. For instance, it might be considered for easing the pain associated with needle punctures, such as those from tattoo applications or the insertion of intravenous lines. Furthermore, the cream could be used to alleviate discomfort from conditions that cause chronic or acute skin pain, such as certain neuropathies or skin lesions. It should be noted, however, that this formulation is not intended for use on mucous membranes or in areas of the body with increased absorption rates, as systemic toxicity can occur.

There may also be instances where this higher concentration cream may provide relief for patients experiencing localized pain after a painful dermatological procedure or injury, assuming there are no contraindications or integrity issues with the skin barrier. It is essential that this formulation is applied according to a healthcare professional's instructions and that duration and frequency of application are strictly adhered to in order to prevent excessive systemic absorption.

Caution should be exercised in using this compounded formulation in certain populations, such as individuals with a history of sensitivity to local anesthetics, liver disease, or those taking certain medications that may interact with lidocaine or tetracaine. The risk of methemoglobinemia, although rare, should be considered as well when using local anesthetics in large doses or on large surface areas. The prescriber should evaluate the risk-benefit ratio for each patient individually.

For prescribers interested in utilizing Lidocaine 23%/Tetracaine 7% Topical Cream for off-label or investigational uses, our team at Bayview Pharmacy is equipped to provide guidance on appropriate applications and dosing strategies that align with current compounding standards and regulations. We understand the unique considerations inherent in compounded medications and are dedicated to ensuring both efficacy and safety for our patients. Should you have any questions regarding this formulation and its potential applications beyond the disease states mentioned, please don't hesitate to reach out to us for further information and support.