SILDENAFIL STADA
On the Bulgarian pack: Силденафил Стада 50 mg филмирани таблетки
50 mg · film - coated tablets
- Prescription only
- Urinary and reproductive system, hormones
- Active substance
- Sildenafil
- Made by
- STADA Arzneimittel AG
- Source
- Official label
Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.
What it is for
Mediclarum has not yet read the official leaflet for this product. The exact uses and dose are in the leaflet inside the pack. Open the official leaflet
How it works
This product’s leaflet is published as a scanned document. This section quotes the US prescribing label for the same active substance (sildenafil citrate). It describes the substance, not this Bulgarian product — its uses and doses can differ.
The physiologic mechanism of erection of the penis involves release of nitric oxide (NO) in the corpus cavernosum during sexual stimulation.
NO then activates the enzyme guanylate cyclase, which results in increased levels of cyclic guanosine monophosphate (cGMP), producing smooth muscle relaxation in the corpus cavernosum and allowing inflow of blood.
It is eliminated predominantly by hepatic metabolism (mainly CYP3A4) and is converted to an active metabolite with properties similar to the parent, sildenafil.
After either oral or intravenous administration, sildenafil is excreted as metabolites predominantly in the feces (approximately 80% of administered oral dose) and to a lesser extent in the urine (approximately 13% of the administered oral dose).
When sildenafil is taken with a high fat meal, the rate of absorption is reduced, with a mean delay in T max of 60 minutes and a mean reduction in C max of 29%.
Quoted from the prescribing label, sections “Mechanism of Action” and “Pharmacokinetics”. DailyMed · 2026-07-29
Safety of the active substance
This product’s leaflet is published as a scanned document. This section quotes the US prescribing label for the same active substance (sildenafil citrate). It describes the substance, not this Bulgarian product — its uses and doses can differ.
- Administration of sildenafil tablets to patients using nitric oxide donors, such as organic nitrates or organic nitrites in any form.
- After patients have taken sildenafil tablets, it is unknown when nitrates, if necessary, can be safely administered.
- Hypersensitivity reactions have been reported, including rash and urticaria [ see Adverse Reactions (6.1) ]. 4.3 Concomitant Guanylate Cyclase (GC) Stimulators Do not use sildenafil tablets in patients who are using a GC stimulator, such as riociguat.
- PDE5 inhibitors, including sildenafil, may potentiate the hypotensive effects of GC stimulators.
Quoted from the US prescribing label for the same active substance. Your own pack’s leaflet is the authority for your product. DailyMed
Same active substance, strength and form in other countries
Matched on active substance, strength and kind of form only. This is not a statement that the products are equivalent or interchangeable: other ingredients, release and approved uses can differ — ask a pharmacist before swapping.
Medicine passport: one printable page to show a pharmacist abroad
United States43 matching products
European UnionNo exact match for this strength and form
Spain64 matching products
- VIAGRA 50 mg · comprimido recubierto con película9 makers
- SILDENAFILO RATIOPHARM 50 mg · comprimido recubierto con película4 makers
- VIZARSIN 50 mg de sildenafilo · comprimido recubierto con película4 makers
- SILDENAFILO ACTAVIS 50 mg · comprimido recubierto con película3 makers
- Viagra 50mg · comprimido bucodispersable3 makers
- VIAGRA COMPRIMIDOS RECUBIERTOS 50 mg · comprimido recubierto con película3 makers
- SILDENAFILO ALTER 50 mg · comprimido masticable2 makers
- SILDENAFILO CINFA 50 mg · comprimido masticable2 makers
Canada25 matching products
Netherlands26 matching products
- Sildenafil Teva 50 mg 50 mg · kauwtablet2 makers
- Viagra 50 mg 50 mg · orodispergeerbare tablet2 makers
- Vizarsin 50 mg 50 mg · orodispergeerbare tablet2 makers
- Azulsix 50 mg 50 mg · kauwtablet
- Entranin 50 mg 50 mg · kauwtablet
- Idilico 50 mg 50 mg · filmomhulde tablet
- Rosytona 50 mg 50 mg · kauwtablet
- Sildenafil 1A Pharma 50 mg 50 mg · tablet
SwitzerlandNo exact match for this strength and form
Details
| Made by | STADA Arzneimittel AG · Germany |
|---|---|
| Active substance | Sildenafil |
| Used in | Urinary and reproductive system, hormones |
| Strength | 50 mg |
| Form | film - coated tablets |
| Pack sizes | 1 · 2 · 3 · 4 · 8 · 12 · 24 · 36 · 48 · 60 |
| Classification | G04BE03 · Urinary and reproductive system, hormones |
| Name in the register | Силденафил Стада 50 mg филмирани таблетки |
| Reg. no. | 20110116 |
Source: Bulgarian Drug Agency register · 2026-08-01 · not reviewed by a clinician
Източник: Изпълнителна агенция по лекарствата (ИАЛ). The publisher’s terms do not grant reproduction, so text is shortened and linked. Publisher’s terms.
Other strengths and forms
3 products are sold under this name. Grouped by form; a number on a strength means several companies make it.
Same active substance
These contain the same substance. That does not mean one can replace another — ask a pharmacist.