The sildenafil ODF also demonstrated reliable performance at elevated temperature (stress test), ensuring the stability of the pharmaceutical product during transport, storage, and handling.
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Apparently, the lower enzymatic activity in the oral mucosa provides greater permeability and rapid absorption of several drugs, especially drugs with low aqueous solubility. It also bypasses first-pass metabolism, potentiates higher systemic bioavailability of active pharmaceutical ingredients (APIs), and ensures a rapid onset of action [Citation5]. Oral disintegrating tablets (ODTs) are a kind of oral solid dosage form intended to disintegrate swiftly within seconds of placement on the tongue without necessitating water or chewing [Citation5,Citation6]. Orodispersible films (ODFs) are a drug delivery system that encompasses thin, flexible sheets manufactured with or without plasticizers that usually disperse or disintegrate promptly, usually within seconds, once placed in the mouth. They are designed to be positioned in the buccal cavity either above the tongue or between the gums and cheeks and get directly absorbed into the blood stream.
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They can be used to deliver different categories of medications, including prescription and non-prescription, or over-the-counter drugs [Citation5]. The use of ODFs is well-known to resolve issues related to conventional oral dosage forms that include but are not limited to (i) accelerating the time of drug release, (ii) prolonged duration of drug action, (iii) reduced number of dose administrations, and (iv) maximized efficacy of sildenafil citrate tablet APIs [Citation7]. Besides, this innovative drug delivery system or film technology offers an array of benefits during the pharmacokinetics and pharmacodynamic aspects of the drugs, including (i) improved absorption and metabolism, (ii) site-specific action, (iii) lowering of side effects, and (iv) most significantly enhancing the drug’s bioavailability. ODFs also confer expeditious dissolution, pertinent drug loading capacities, and improved stability and durability of drug formulations. Moreover, they are safe, secure, nontoxic, bioresorbable, and biodegradable. ODFs have transformed the conventional ways of oral drug delivery.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 100mg | 10 Pills | 28.91€ 27.53€ | |
| Viagra Generic | 150mg | 20 Pills | 55.02€ 52.40€ | |
| Viagra Generic | 150mg | 270 + 10 Pills | 326.61€ 311.06€ | |
| Viagra Generic | 100mg | 20 Pills | 45.58€ 43.41€ | |
| Kamagra Soft Tabs | 100mg | 180 + 8 Pills | 425.45€ 405.19€ | |
| Viagra Generic | 200mg | 180 + 10 Pills | 277.56€ 264.34€ | |
| Viagra Generic | 200mg | 10 Pills | 40.96€ 39.01€ | |
| Viagra Generic | 25mg | 90 + 6 Pills | 105.03€ 100.03€ | |
| Kamagra Oral Jelly | 100mg | 10 Sachets | 54.55€ 51.95€ | |
| Kamagra Soft Tabs | 100mg | 84 + 4 Pills | 233.05€ 221.95€ | |
| Viagra Generic | 25mg | 30 + 4 Pills | 47.97€ 45.69€ | |
| Kamagra | 100mg | 12 Pills | 55.64€ 52.99€ | |
| Viagra Generic | 25mg | 360 + 10 Pills | 213.68€ 203.50€ |
The sildenafil ODF is widely prescribed and preferred among ED patients as it respects patients’ privacy with its ease of use, portability, efficacy, and safety.
5.2 Worsening Pulmonary Vascular Occlusive Disease
Orodispersible dosage forms have an ever growing presence in the pharmaceutical market considering that their administration can enhance the bioavailability of most of the drugs and their prescription can ameliorate patient adherence and/or compliance [Citation10]. This novel technique has transformed the usual drug delivery methodology for oral drugs. These modified dosage forms, oral films, have replaced oral tablets as they have achieved altered drug release characteristics and faster disintegration. Also, conventional tablets may get easily broken down, necessitating considerable packaging during handling, storage, and transit, while oral films are flexible, handy, and can be kept for long-term use [Citation14]. An ideal and authentic rapid dissolving delivery system is expected to possess the following properties: (i) optimal stability and transportability, (ii) uncomplicated handling and administration, (iii) no distinctive packaging material or processing requirements, (iv) no requirement of water for application, and (v) acceptable palatability.
Warnings and Precautions
In addition, the film should be thin and elegant in appearance, available in various sizes and shapes, unobstructive, adhere to the oral cavity easily, disintegrate fast without requiring water, and release the drug rapidly. In addition, the suitable drug candidate must exhibit these ideal characteristics. The drug should have a pleasant taste, lesser and moderate molecular weight, and excellent stability and solubility in water and saliva; remain partially unionized at the neutral pH of oral cavity; and easily permeate through the oral mucosal tissue [Citation4]. lists the advantages and disadvantages of the ODF, respectively. The existence of numerous polymers, excipients, and manufacturing technologies has leveraged the development of a distinct range of ODFs [Citation13]. Oral medications remain the most preferred and accustomed method of drug delivery owing to several advantages they offer, including convenience of self-administration and high patient compliance among others [Citation1]. However, some patient groups, including the geriatric and pediatric groups, individuals with Parkinson’s disease or Alzheimer’s disease and psychiatric conditions, and patients with dysphagia, often confront challenges in swallowing and chewing solid oral dosage forms [Citation1–3]. Thus, to overcome these issues, extensive efforts were taken to create novel oral drug delivery systems with the aim of providing drugs that could dissolve or disperse in the oral cavity and form solution or suspension without the requirement of water.
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The sildenafil ODF also demonstrated reliable performance at elevated temperature (stress test), ensuring the stability of the pharmaceutical product during transport, storage, and handling. ODFs have transformed the conventional ways of oral drug delivery. The sildenafil ODF is widely prescribed and preferred among ED patients as it respects patients’ privacy with its ease of use, portability, efficacy, and safety. Oral medications remain the most preferred and accustomed method of drug delivery owing to several advantages they offer, including convenience of self-administration and high patient compliance among others [Citation1]. However, some patient groups, including the geriatric and pediatric groups, individuals with Parkinson’s disease or Alzheimer’s disease and psychiatric conditions, and patients with dysphagia, often confront challenges in swallowing and chewing solid oral dosage forms [Citation1–3].
Drugs you should not use with sildenafil
Thus, to overcome these issues, extensive efforts were taken to create novel oral drug delivery systems with the aim of providing drugs that could dissolve or disperse in the oral cavity and form solution or suspension without the requirement of water. These fast-dissolving oral drug delivery systems were first devised in the late 1970s and became prominent as oral mucosal dosage formulations. Currently, they are available in various forms, including adhesive tablets, gels, ointments, patches, and mouth-dissolving films for buccal delivery [Citation4]. These buccal drug delivery systems over time became a suitable alternative drug form for tablets or capsules. In addition, the oral cavity serves as an ideal route of administration due to its highly vascularized thin membranous structure. These fast-dissolving oral drug delivery systems were first devised in the late 1970s and became prominent as oral mucosal dosage formulations. Currently, they are available in various forms, including adhesive tablets, gels, ointments, patches, and mouth-dissolving films for buccal delivery [Citation4].
4.1 Nitrates
The performance of ODTs relies on manufacturing processes that increase the tablet’s porous structure, ensures appropriate mixing of disintegrating agents, and employs highly water-soluble excipients that allow quick ingress of water. These parameters are highly essential in facilitating rapid disintegration and dissolution of ODTs when placed in the mouth [Citation19]. Also, a striking balance between rapid disintegration and fragility must be demonstrated to reduce the challenges during handling, packaging, administration, and storage. Lyophilization, also known as freeze drying, is a technique that utilizes the sublimation effect, wherein solid ice is transformed directly into vapor phase, bypassing the liquid phase entirely, and often used to manufacture ODTs. This technology entails molding the drug in suspension or solution along with other structural excipients into tablet-shaped units, followed by freezing and lyophilization in the pack or mold forms. These buccal drug delivery systems over time became a suitable alternative drug form for tablets or capsules. In addition, the oral cavity serves as an ideal route of administration due to its highly vascularized thin membranous structure. Apparently, the lower enzymatic activity in the oral mucosa provides greater permeability and rapid absorption of several drugs, especially drugs with low aqueous solubility. It also bypasses first-pass metabolism, potentiates higher systemic bioavailability of active pharmaceutical ingredients (APIs), and ensures a rapid onset of action [Citation5]. Oral disintegrating tablets (ODTs) are a kind of oral solid dosage form intended to disintegrate swiftly within seconds of placement on the tongue without necessitating water or chewing [Citation5,Citation6]. Orodispersible films (ODFs) are a drug delivery system that encompasses thin, flexible sheets manufactured with or without plasticizers that usually disperse or disintegrate promptly, usually within seconds, once placed in the mouth.
8.5 Geriatric Use
The resultant tablet-matrix offers high porosity, which is beneficial for rapid saliva or water penetration and quick disintegration [Citation20,Citation21]. The freeze-dried formulations exhibit ideal pharmacological properties including low dosage, microscopic particle size, chemical stability, and easy handling and transport. However, the fabrication process is expensive and time-consuming [Citation22–24]. Compressed tablet-based systems harness the conventional tableting technology by direct compression of the mixture of API and excipients. They are designed to be positioned in the buccal cavity either above the tongue or between the gums and cheeks and get directly absorbed into the blood stream. They can be used to deliver different categories of medications, including prescription and non-prescription, or over-the-counter drugs [Citation5].
RETAFIL Sildenafil 100mg Film Coated Tablet 8's
The constituents of oral films can vary depending on the particular formulation and intended purpose [Citation16]. Irrespective of the site of action, local or systemic, a wide range of drugs can be formulated as ODFs. Those films that are indicated for fluid-filled blisters, local anesthetics, toothaches, and mouth ulcers are few examples of ODFs that exhibit local action. For systemic action, they are used for managing cough, throat sildenafil citrate chewable tablets pain, migraine headaches, central nervous system disorders, gastric ailments, pain, and nausea or for delivering vitamins or nutraceutics [Citation6]. To start with ODTs, there are two broad classifications used in their manufacturing such as lyophilized systems and compressed tablet-based systems [Citation4,Citation13,Citation15,Citation17,Citation18]. The use of ODFs is well-known to resolve issues related to conventional oral dosage forms that include but are not limited to (i) accelerating the time of drug release, (ii) prolonged duration of drug action, (iii) reduced number of dose administrations, and (iv) maximized efficacy of sildenafil citrate tablet APIs [Citation7]. Besides, this innovative drug delivery system or film technology offers an array of benefits during the pharmacokinetics and pharmacodynamic aspects of the drugs, including (i) improved absorption and metabolism, (ii) site-specific action, (iii) lowering of side effects, and (iv) most significantly enhancing the drug’s bioavailability. ODFs also confer expeditious dissolution, pertinent drug loading capacities, and improved stability and durability of drug formulations. Moreover, they are safe, secure, nontoxic, bioresorbable, and biodegradable. Furthermore, as ODTs evolved, the ODFs achieved patient compliance by circumventing discomfort due to their user-friendly advantages. Thus, the ODFs provide immediate release and disintegration; rapid onset of action; and disease- and target-specific drug action that results in instant and effective reduction of symptoms, relieves discomfort, and restores normal physiological function. These advantages have compelled patients to adhere to their therapy and complete the duration of treatment, resulting in improved quality of life () [Citation8,Citation11–13]. Although there are several names employed to refer oral film dosage forms like thin strips, oral thin films, quick dissolve films, oral films, melt-away films, orally dissolving films, and wafers, they are officially named as ODF by the European Medicines Agency (EMA) or as soluble films by the United States Food and Drug Administration (U.S. FDA) [Citation9].
What are Aronix Sildenafil Tablets
Furthermore, as ODTs evolved, the ODFs achieved patient compliance by circumventing discomfort due to their user-friendly advantages. Thus, the ODFs provide immediate release and disintegration; rapid onset of action; and disease- and target-specific drug action that results in instant and effective reduction of symptoms, relieves discomfort, and restores normal physiological function. These advantages have compelled patients to adhere to their therapy and complete the duration of treatment, resulting in improved quality of life () [Citation8,Citation11–13]. Although there are several names employed to refer oral film dosage forms like thin strips, oral thin films, quick dissolve films, oral films, melt-away films, orally dissolving films, and wafers, they are officially named as ODF by the European Medicines Agency (EMA) or as soluble films by the United States Food and Drug Administration (U.S. FDA) [Citation9].
12.3 Pharmacokinetics
), ODFs sildenafil price ireland are delineated as sheets, either single or multilayered, made up of appropriate materials and are designed for rapid dispersion once placed in the mouth. In fact, they instantaneously disintegrate/disperse in saliva, resulting in the formation of solution or suspension, which facilitates rapid absorption and distribution of the drug into the blood circulation [Citation5]. This review discusses the advantages of ODFs in improving compliance and satisfaction in patients with erectile dysfunction (ED) and describes the bioequivalence and stability studies of sildenafil citrate ODF. An online PubMed literature search was conducted to identify English language publications from inception to March 2024 using combinations of the terms erectile dysfunction, ED, phosphodiesterase type 5 inhibitor, phosphodiesterase 5 inhibitor, phosphodieseterase-5 (PDE5) inhibitor, sildenafil, vardenafil, tadalafil, avanafil, drug formulations, drug delivery, buccal mucosa, orally dispersible, orally disintegrating, orodispersible, ODT, ODF, oral dispersible formulations, novel drug delivery, innovative technologies, manufacturing methods, stability studies, stress test, bioequivalence, and regulatory requirements. Other relevant articles were identified by manually reviewing the reference list of selected articles. ), ODFs sildenafil price ireland are delineated as sheets, either single or multilayered, made up of appropriate materials and are designed for rapid dispersion once placed in the mouth. In fact, they instantaneously disintegrate/disperse in saliva, resulting in the formation of solution or suspension, which facilitates rapid absorption and distribution of the drug into the blood circulation [Citation5]. This review discusses the advantages of ODFs in improving compliance and satisfaction in patients with erectile dysfunction (ED) and describes the bioequivalence and stability studies of sildenafil citrate ODF. An online PubMed literature search was conducted to identify English language publications from inception to March 2024 using combinations of the terms erectile dysfunction, ED, phosphodiesterase type 5 inhibitor, phosphodiesterase 5 inhibitor, phosphodieseterase-5 (PDE5) inhibitor, sildenafil, vardenafil, tadalafil, avanafil, drug formulations, drug delivery, buccal mucosa, orally dispersible, orally disintegrating, orodispersible, ODT, ODF, oral dispersible formulations, novel drug delivery, innovative technologies, manufacturing methods, stability studies, stress test, bioequivalence, and regulatory requirements.
- These tablets provide a discreet alternative to traditional pills.
- They are designed to dissolve quickly in the mouth or be swallowed.
- Suitable for people who have difficulty swallowing capsules.
Other relevant articles were identified by manually reviewing the reference list of selected articles. Orodispersible dosage forms have an ever growing presence in the pharmaceutical market considering that their administration can enhance the bioavailability of most of the drugs and their prescription can ameliorate patient adherence and/or compliance [Citation10]. This novel technique has transformed the usual drug delivery methodology for oral drugs. These modified dosage forms, oral films, have replaced oral tablets as they have achieved altered drug release characteristics and faster disintegration. Also, conventional tablets may get easily broken down, necessitating considerable packaging during handling, storage, and transit, while oral films are flexible, handy, and can be kept for long-term use [Citation14]. An ideal and authentic rapid dissolving delivery system is expected to possess the following properties: (i) optimal stability and transportability, (ii) uncomplicated handling and administration, (iii) no distinctive packaging material or processing requirements, (iv) no requirement of water for application, and (v) acceptable palatability. In addition, the film should be thin and elegant in appearance, available in various sizes and shapes, unobstructive, adhere to the oral cavity easily, disintegrate fast without requiring water, and release the drug rapidly. In addition, the suitable drug candidate must exhibit these ideal characteristics.
- Possible interactions include medications for HIV, antibiotics, and blood pressure.
- Overdose symptoms include severe headaches and chest pain.
- Seek immediate medical attention if adverse reactions occur.
The drug should have a pleasant taste, lesser and moderate molecular weight, and excellent stability and solubility in water and saliva; remain partially unionized at the neutral pH of oral cavity; and easily permeate through the oral mucosal tissue [Citation4]. lists the advantages and disadvantages of the ODF, respectively. The existence of numerous polymers, excipients, and manufacturing technologies has leveraged the development of a distinct range of ODFs [Citation13].
| Side Effect | Frequency | Severity |
|---|---|---|
| Headache | Very common | Mild |
| Flushing | Common | Mild |
| Dyspepsia | Common | Mild |
| Nasal Congestion | Common | Mild |
| Dizziness | Less common | Mild |
The constituents of oral films can vary depending on the particular formulation and intended purpose [Citation16].
| Aspect | Data/Estimate |
|---|---|
| Market Size (2024) | Approx. USD 1.5 billion |
| Major Countries Exporting | USA, India, China |
| Growth Rate (CAGR 2024-2029) | About 6% annually |
| Leading Manufacturers | Pfizer, Teva, Sun Pharmaceutical |
Irrespective of the site of action, local or systemic, a wide range of drugs can be formulated as ODFs.
| Drug Class | Interaction Effect |
|---|---|
| Nitrates | Dangerous drop in blood pressure |
| Alpha-Blockers | Enhanced hypotensive effect |
| CYP3A4 inhibitors (e.g., ketoconazole, erythromycin) | Increased sildenafil levels |
| Other PDE5 inhibitors | Risk of overdose and side effects |
Those films that are indicated for fluid-filled blisters, local anesthetics, toothaches, and mouth ulcers are few examples of ODFs that exhibit local action. For systemic action, they are used for managing cough, throat sildenafil citrate chewable tablets pain, migraine headaches, central nervous system disorders, gastric ailments, pain, and nausea or for delivering vitamins or nutraceutics [Citation6]. To start with ODTs, there are two broad classifications used in their manufacturing such as lyophilized systems and compressed tablet-based systems [Citation4,Citation13,Citation15,Citation17,Citation18]. The performance of ODTs relies on manufacturing processes that increase the tablet’s porous structure, ensures appropriate mixing of disintegrating agents, and employs highly water-soluble excipients that allow quick ingress of water. These parameters are highly essential in facilitating rapid disintegration and dissolution of ODTs when placed in the mouth [Citation19]. Also, a striking balance between rapid disintegration and fragility must be demonstrated to reduce the challenges during handling, packaging, administration, and storage. Lyophilization, also known as freeze drying, is a technique that utilizes the sublimation effect, wherein solid ice is transformed directly into vapor phase, bypassing the liquid phase entirely, and often used to manufacture ODTs. This technology entails molding the drug in suspension or solution along with other structural excipients into tablet-shaped units, followed by freezing and lyophilization in the pack or mold forms. The resultant tablet-matrix offers high porosity, which is beneficial for rapid saliva or water penetration and quick disintegration [Citation20,Citation21]. The freeze-dried formulations exhibit ideal pharmacological properties including low dosage, microscopic particle size, chemical stability, and easy handling and transport. However, the fabrication process is expensive and time-consuming [Citation22–24]. Compressed tablet-based systems harness the conventional tableting technology by direct compression of the mixture of API and excipients.