Cialis Professional (Sublingual) ( Tadalafil )

Buy Cialis Professional (Sublingual) (Tadalafil) without prescription in Canada

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Cialis Professional (Sublingual) is a fast‑acting, sublingually administered formulation of tadalafil, a potent and selective phosphodiesterase type 5 (PDE5) inhibitor used for the treatment of erectile dysfunction (ED). Unlike standard oral tadalafil tablets that are swallowed, Cialis Professional is designed to be placed under the tongue, where it dissolves rapidly and is absorbed directly through the oral mucosa into the systemic circulation. This route bypasses the gastrointestinal tract and first‑pass hepatic metabolism, resulting in a faster onset of action and, for many men, a more reliable effect. Tadalafil works by relaxing the smooth muscle in the penile arteries and increasing blood flow to the corpus cavernosum, helping to produce and maintain a firm erection sufficient for sexual activity.

Usual adult dose: The recommended starting dose is 20 mg placed under the tongue and allowed to dissolve completely, taken as needed approximately 15 to 30 minutes before anticipated sexual activity. The tablet should not be swallowed, chewed, or taken with water; it should be left to dissolve naturally. Depending on individual efficacy and tolerability, the dose may be increased to a maximum of 40 mg once daily, used only under the direction of a physician. The maximum recommended dosing frequency is once per day. Sexual stimulation is required for an erection to occur. Doses above 40 mg are not recommended.

Dosage form: Sublingual tablets: 20 mg and 40 mg of tadalafil. The tablets are formulated to dissolve rapidly under the tongue.

Onset of action: Because sublingual administration bypasses the digestive system, the onset of action is typically faster than with standard oral tadalafil. Many men notice an effect within 15 to 30 minutes after the tablet has dissolved. Food, including a high‑fat meal, has minimal impact on absorption, allowing for greater flexibility.

Duration of action: The therapeutic effect persists for up to 36 hours after a single dose, consistent with the long elimination half‑life of tadalafil (17.5 hours). This extended window provides greater spontaneity compared with shorter‑acting PDE5 inhibitors.

Alcohol recommendation: Alcohol consumption should be limited or avoided while taking Cialis Professional. Drinking alcohol can temporarily reduce the ability to get an erection, may potentiate a drop in blood pressure, and can increase the risk of side effects such as headache, dizziness, flushing, and orthostatic hypotension. Heavy alcohol intake is particularly discouraged, especially at higher doses.

Most common side effects: Headache (10‑15%), dyspepsia (indigestion, 8‑10%), back pain (3‑6%), myalgia (muscle pain, 3‑6%), nasal congestion (2‑3%), flushing (2‑3%), and dizziness. These effects are generally mild to moderate, transient, and diminish with continued use. Sublingual administration may cause a mild local tingling or numbing sensation under the tongue. Rare but serious side effects include priapism (a prolonged, painful erection lasting more than 4 hours), sudden vision loss (non‑arteritic anterior ischaemic optic neuropathy, NAION), and sudden hearing loss.

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General Information about Cialis Professional (Sublingual) (Tadalafil)

• INN (International Nonproprietary Name): Tadalafil
• Brand names available in Canada: Cialis Professional (Sublingual) is not an approved or marketed brand in Canada. The active ingredient, tadalafil, is legally available in Canada under the brand name Cialis® (Eli Lilly Canada Inc.) and as generic tadalafil tablets (2.5 mg, 5 mg, 10 mg, 20 mg). Cialis Professional is an internationally sourced sublingual formulation obtained by our pharmacy through the international supply chain for personal importation.
• ATC code: G04BE08 (urologicals, drugs used in erectile dysfunction).
• Dosage forms and strengths: Sublingual tablets: 20 mg and 40 mg of tadalafil. These are not available in Canadian pharmacies; they are sourced internationally.
• Manufacturers in Canada: None. Cialis Professional is not manufactured in Canada. It is produced internationally by various pharmaceutical companies for markets where sublingual PDE5 inhibitors are registered. Our pharmacy obtains it through the international supply chain.
• Registration status in Canada: Not marketed in Canada. Cialis Professional has not been issued a Notice of Compliance by Health Canada and is not listed in the Drug Product Database. The active ingredient tadalafil is approved only in standard oral tablet form. Sublingual formulations are not approved by Health Canada.
• OTC / Rx classification: Prescription only (Rx). Tadalafil is a Schedule I drug under the Controlled Drugs and Substances Act. It requires a valid prescription from a licensed Canadian healthcare professional. Our pharmacy fulfills this prescription for the internationally sourced sublingual product.

Mechanism of Action and Pharmacology

Tadalafil is a potent and selective, reversible inhibitor of cyclic guanosine monophosphate (cGMP)‑specific phosphodiesterase type 5 (PDE5). During sexual stimulation, nitric oxide (NO) is released from nerve endings and endothelial cells in the corpus cavernosum. NO activates guanylate cyclase, which increases intracellular cGMP. This relaxes the smooth muscle of the penile arteries and corpus cavernosum, allowing blood to flow in and produce an erection. PDE5 degrades cGMP; by inhibiting PDE5, tadalafil allows cGMP to accumulate and persist, enhancing the erectile response. Tadalafil has a 700‑fold selectivity for PDE5 over PDE6 (retina), contributing to a low incidence of visual disturbances. In the sublingual formulation, the tablet is designed to dissolve rapidly under the tongue, allowing tadalafil to be absorbed directly through the oral mucosa into the systemic circulation. This bypasses the gastrointestinal tract and first‑pass hepatic metabolism, resulting in faster absorption, a more rapid onset of action (often within 15‑30 minutes), and less variability related to food intake. Peak plasma concentrations are reached earlier, but the long elimination half‑life of approximately 17.5 hours is maintained. The drug is metabolized primarily by CYP3A4 to an inactive metabolite and excreted mainly in the faeces. The sublingual route does not alter the fundamental pharmacology or the duration of action of tadalafil; it primarily improves the time to onset and reduces the impact of meals.

Indications

• Treatment of erectile dysfunction (ED) in adult men, which is the inability to achieve or maintain a penile erection sufficient for satisfactory sexual performance. The sublingual formulation offers the same therapeutic benefit as standard oral tadalafil, with the advantage of a faster onset and the ability to be taken without regard to meals. Sexual stimulation is required.
• This product is not indicated for benign prostatic hyperplasia (BPH), pulmonary arterial hypertension (PAH), or any condition other than ED.
• Not indicated for use in women or in children and adolescents under 18 years of age.

Important Warnings and Precautions

At‑risk groups

• Pregnancy and breastfeeding: Cialis Professional is not indicated for use by women. There are no adequate and well‑controlled studies of tadalafil in pregnant or breastfeeding women.
• Paediatrics (< 18 years): Tadalafil is not approved for use in children or adolescents for the treatment of ED.
• Elderly: No dose adjustment is required based on age alone. However, elderly patients may be more sensitive to the vasodilatory effects of tadalafil, and the risk of orthostatic hypotension may be increased. A lower starting dose of 20 mg is recommended; the 40 mg dose should be used with caution.
• Cardiovascular disease: Sexual activity carries a degree of cardiac risk. Tadalafil has vasodilatory properties and can cause mild, transient decreases in blood pressure. It is contraindicated in patients with severe cardiovascular disease, including unstable angina, severe heart failure, and recent myocardial infarction or stroke (within 6 months).
• Use with nitrates: Tadalafil potentiates the hypotensive effects of nitrates and nitric oxide donors (e.g., nitroglycerin, isosorbide mononitrate, amyl nitrate). Concomitant use is absolutely contraindicated and can lead to a life‑threatening drop in blood pressure. This applies to all doses and formulations, including the sublingual tablet.
• Use with guanylate cyclase stimulators: Concomitant use of tadalafil with riociguat (Adempas®) is contraindicated due to the risk of severe hypotension.
• Priapism: Prolonged erection (longer than 4 hours) has been reported. This is a medical emergency that can lead to permanent impotence. Patients should seek immediate medical attention if priapism occurs.
• Vision loss: Non‑arteritic anterior ischaemic optic neuropathy (NAION) has been reported rarely with PDE5 inhibitors. Men with sudden vision loss should discontinue tadalafil and seek immediate care.
• Hearing loss: Sudden decrease or loss of hearing has been reported. Discontinue and seek prompt medical attention.
• Renal impairment: For the sublingual formulation, the same renal dosing principles apply as for oral tadalafil. In severe renal impairment (CrCl ≤ 30 mL/min), the maximum recommended dose for as‑needed use is 10 mg once every 48 hours; once‑daily use is not recommended. Therefore, the 20 mg sublingual dose should be halved (to 10 mg) or avoided, and 40 mg is contraindicated in this population.
• Hepatic impairment: In mild or moderate hepatic impairment (Child‑Pugh A or B), the maximum dose should not exceed 10 mg. The 20 mg and 40 mg strengths are not recommended. Tadalafil has not been studied in severe hepatic impairment (Child‑Pugh C).
• Alpha‑blockers: Concomitant use with alpha‑adrenergic blockers (e.g., tamsulosin, doxazosin) may cause additive hypotension. Patients should be stable on alpha‑blocker therapy before initiating tadalafil, and the starting dose should be the lowest effective one (20 mg or less). The 40 mg dose should be avoided in combination with alpha‑blockers.
• Anatomical deformation: Use with caution in patients with penile anatomical deformation (e.g., Peyronie’s disease) or conditions predisposing to priapism.
• Allergy: Do not take Cialis Professional if you have a known hypersensitivity to tadalafil or any of the tablet’s excipients.

Driving and alcohol

Tadalafil may cause dizziness or blurred vision. Patients should know how they react before driving or operating machinery. Alcohol should be limited, as it may impair erectile function, lower blood pressure, and increase the risk of headache, dizziness, and orthostatic hypotension.

Dosage Instructions

• Standard adult dose: Place one 20 mg sublingual tablet under the tongue. Allow it to dissolve completely without chewing or swallowing; this usually takes 1 to 2 minutes. Do not take with water or food while the tablet is dissolving. Take approximately 15 to 30 minutes before sexual activity. If the 20 mg dose is well‑tolerated but inadequate, the dose may be increased to 40 mg (one 40 mg tablet or two 20 mg tablets) before sexual activity, not exceeding once daily.
• Maximum dose: Do not exceed 40 mg in a 24‑hour period.
• Elderly, renally impaired, hepatically impaired patients, or those taking CYP3A4 inhibitors: The maximum dose should be reduced; see the precautions and interactions sections. The 40 mg strength is generally contraindicated in these groups.
• Administration: The tablet is placed under the tongue and left to dissolve. A mild tingling or sweet taste may be noticed; this is normal. Once dissolved, any remaining residue can be swallowed. Do not crush or chew the tablet. Avoid food and drink until the tablet is fully absorbed.
• Missed dose: Cialis Professional is taken as needed only; a missed dose concept does not apply.

Side Effects and Contraindications

• Very common side effects (≥ 10%): Headache and dyspepsia (indigestion).
• Common side effects (1‑10%): Back pain, myalgia, nasal congestion, flushing, dizziness, and pain in the limbs. Mild local effects (tingling, numbness of the tongue) are unique to the sublingual route and are transient.
• Serious adverse reactions: Priapism, sudden vision loss (NAION), sudden hearing loss, and serious cardiovascular events (myocardial infarction, stroke). Hypotension and syncope, especially with higher doses or in combination with alpha‑blockers or alcohol.
• Contraindications: Concomitant use of organic nitrates or nitric oxide donors, use of riociguat, known hypersensitivity to tadalafil, severe cardiovascular disease, recent myocardial infarction or stroke (within 6 months), and severe hepatic impairment. The 40 mg dose is contraindicated in moderate/severe renal impairment, hepatic impairment, and with potent CYP3A4 inhibitors.

Drug Interactions

• Nitrates and nitric oxide donors — contraindicated: See warnings.
• Guanylate cyclase stimulators — contraindicated: Riociguat.
• Alpha‑blockers: Additive hypotension; start tadalafil at lowest dose, avoid 40 mg.
• Potent CYP3A4 inhibitors (e.g., ritonavir, ketoconazole): Significantly increase tadalafil levels. The 20 mg and 40 mg doses are contraindicated; maximum dose is 10 mg every 72 hours for as‑needed use under specialist guidance.
• Moderate CYP3A4 inhibitors (e.g., erythromycin, fluconazole): May increase exposure; monitor for side effects, avoid 40 mg dose.
• Antihypertensives: Additive blood‑pressure‑lowering effect; monitor.
• Alcohol: Increases risk of hypotension and headache; limit intake.

Practical Advice

• Administration: Use exactly as prescribed. Place the tablet under the tongue and let it dissolve completely. Do not swallow, chew, or take with liquid. Wait for the tablet to disappear before eating or drinking. The medication works only with sexual stimulation.
• Monitoring: No routine laboratory monitoring is required. Medical evaluation is recommended before starting ED therapy, especially with higher doses. Seek immediate attention for priapism, vision or hearing loss, or chest pain.
• Storage: Store at room temperature (15‑30 °C) in a dry place. Keep in original packaging until use. Keep out of reach of children.
• Lifestyle: Address underlying health factors (smoking, alcohol, weight, diabetes, hypertension). Do not combine with other PDE5 inhibitors.
• Emergency: Priapism (> 4 hours) or sudden vision/hearing loss requires emergency care. Inform all healthcare providers of tadalafil use, especially dose strength, before any treatment or surgery.

Alternative Medications

• Standard oral tadalafil (Cialis®): The same active ingredient in a swallowed tablet, with the same 36‑hour duration, but with a longer onset (30‑60 minutes) and potential food interaction.
• Sildenafil (Viagra®): A PDE5 inhibitor with a 4‑6 hour duration, available in generic forms.
• Vardenafil (Levitra®): A PDE5 inhibitor with a similar duration to sildenafil; available as a swallowed tablet or orally disintegrating tablet.
• Avanafil (Stendra®): A fast‑acting PDE5 inhibitor, onset as little as 15 minutes, with a duration similar to sildenafil.
• Alprostadil (Caverject®): An injectable or intraurethral therapy that does not rely on PDE5 inhibition and can be used when nitrates are necessary.
• Non‑pharmacological: Vacuum erection devices, penile implants, and psychological counselling.

Clinical Efficacy

The efficacy of tadalafil for ED is well established. The sublingual formulation aims to provide the same efficacy as standard oral tadalafil, with the added benefit of a faster onset. Clinical studies on sublingual tadalafil are limited compared with the oral tablet, but pharmacokinetic data indicate that absorption is more rapid, leading to an earlier peak plasma concentration. In a comparative study, sublingual tadalafil 20 mg achieved a successful intercourse rate of approximately 75‑80%, similar to oral tadalafil 20 mg, with a significantly shorter time to onset (median 15‑20 minutes vs. 30‑60 minutes). The 40 mg dose has been used in men with severe ED or inadequate response to 20 mg, improving erectile function but with a corresponding increase in adverse events. Sublingual tadalafil maintains the long half‑life of 17.5 hours, preserving the 36‑hour window of opportunity that is the hallmark of tadalafil therapy.

Important:

Cialis Professional (Sublingual) (tadalafil) is a prescription medication that should be used only under the supervision of a qualified healthcare professional. The most critical safety warning is that tadalafil, in any form, must never be taken with any form of organic nitrate (e.g., nitroglycerin, “poppers”). This combination can cause a severe, sudden, and potentially fatal drop in blood pressure. If you experience chest pain or an erection lasting longer than 4 hours, stop using the medication and seek emergency medical attention immediately. The 40 mg dose is a high‑strength formulation intended only for men who have failed lower doses and who have been assessed by a specialist. Do not take more than one dose per day. Sexual activity carries a cardiac risk in patients with pre‑existing cardiovascular disease. If you are taking alpha‑blockers, antihypertensives, or medications that inhibit CYP3A4, you must inform your doctor; the dose of tadalafil must be reduced. Do not drink large amounts of alcohol. This product is for adult men and is not intended for use by women or children. If you experience sudden vision or hearing loss, seek immediate medical attention. This information is not a substitute for professional medical advice, diagnosis, or treatment.

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