Description
Sildalist strong (Sildenafil + Tadalafil) 140 mg
Sildalist strong is presented as a fixed-combination tablet containing sildenafil and tadalafil, which are both phosphodiesterase type 5 (PDE5) inhibitors. This product name does not correspond to an officially verified branded medicine in the regulatory sources reviewed, so the description below is based on the verified properties of the two active ingredients rather than on the trade name itself.
Active Ingredient and Medicine Class
Sildenafil and tadalafil belong to the same drug class: PDE5 inhibitors. Both are vasodilating medicines used for erectile dysfunction. Sildenafil is the active ingredient in Viagra and related products, and tadalafil is the active ingredient in Cialis and related products. Both medicines increase the effects of nitric oxide in penile tissue by reducing breakdown of cyclic guanosine monophosphate (cGMP).
Established Medical Uses
The established use of sildenafil and tadalafil is the treatment of erectile dysfunction in adult men. Regulatory labels for both medicines also include other approved indications for specific tadalafil and sildenafil products, but those uses depend on the exact formulation and are not assumed for this combination product.
How It Works
PDE5 inhibitors help relax smooth muscle and increase blood flow in the penis during sexual stimulation. By inhibiting PDE5, sildenafil and tadalafil help preserve cGMP, which supports the vascular response needed for an erection. Tadalafil has a longer duration of action than sildenafil, but both act through the same general mechanism.
Important Safety Information
Both ingredients share major safety concerns. They are contraindicated with organic nitrates because of the risk of significant hypotension. Caution is also required with alpha-blockers and other blood-pressure-lowering medicines because of additive blood pressure effects. Prescribing information also warns that patients with certain cardiovascular conditions may be more vulnerable to vasodilatory effects.
Important warnings described in official labels include the risk of priapism, sudden vision loss associated with non-arteritic anterior ischemic optic neuropathy, and rare serious hypersensitivity reactions. Sildenafil labels also note cautions with strong CYP3A4 inhibitors such as ritonavir because exposure may increase.
Possible Side Effects
Common adverse effects reported for sildenafil and tadalafil include headache, flushing, dyspepsia, nasal congestion, back pain, myalgia, dizziness, and visual disturbances. Less common but serious reactions can include prolonged erection, severe low blood pressure, chest symptoms in susceptible patients, and allergic reactions.
Scientific Evidence
Published clinical studies have examined sildenafil and tadalafil separately, as well as in combination. One randomized study found that long-term low-dose tadalafil combined with sildenafil as needed improved erectile function scores more than tadalafil alone in some patients with severe erectile dysfunction, without a higher overall rate of adverse events in that study. Other comparative trials found both drugs effective for erectile dysfunction, with differences mainly in duration and patient preference rather than a clear universal efficacy advantage.
Medical Information Notice
This summary is for educational purposes only and is based on sources available at the time of review. It does not replace the official patient leaflet or an individual assessment by a qualified healthcare professional.
Medical Sources
- FDA / DailyMed — Sildenafil Tablets: Prescribing Information
- FDA / DailyMed — Tadalafil Tablets: Prescribing Information
- Li et al. — “Efficacy and safety of long-term tadalafil 5 mg once daily combined with sildenafil 50 mg as needed at the early stage of treatment for patients with erectile dysfunction” — PubMed
