Viagra 50mg · Sildenafil Citrate · 30 Tablets
Viagra 50mg – 30 Tablets
Viagra contains sildenafil citrate, a PDE5 inhibitor used for erectile dysfunction (ED). Each Thai Anabolics tablet contains 50mg of sildenafil citrate, with 30 tablets per bottle. The standard Viagra dose in official prescribing information is 50mg taken as needed before sexual activity.[1]
50mg per tablet
30 tablets
Sildenafil Citrate
1,500mg
Quick reference
Viagra Dosage
25mg
½ of a 50mg tablet
50mg
1 tablet
100mg
Once in 24 hours
30 min–4 hours
Before sexual activity
For most patients, the official starting dose is 50mg. Sildenafil may be reduced to 25mg or increased to 100mg based on effectiveness and tolerability, with a maximum recommended frequency of once per day.[1]
Timing
When Should You Take Viagra?
Viagra is commonly taken about 1 hour before sex, but official prescribing information allows sildenafil to be taken anywhere from approximately 30 minutes to 4 hours before sexual activity.[1]
Sexual stimulation is still required. Viagra improves the erectile response to stimulation; taking the tablet does not by itself produce a continuous erection.
Duration
How Long Does Viagra Last?
Sildenafil and its active metabolite both have terminal half-lives of approximately 4 hours.[2]
For practical ED use, Viagra is therefore a shorter-window option than Cialis. This is useful for customers who prefer to take an ED tablet for a specific occasion rather than have tadalafil active for much of the following day.
Food makes a difference
Viagra With Food: Why a Heavy Meal Can Delay It
Viagra can be taken with or without food, but a high-fat meal can make it slower to start working. In official pharmacokinetic data, taking sildenafil with a high-fat meal delayed the time to peak concentration by approximately 60 minutes and reduced the peak concentration by about 29%.[2]
For customers who want the most predictable timing, taking the tablet without a large high-fat meal immediately beforehand is the simpler approach.
The main ED-tablet comparison
Viagra vs Cialis
Both Viagra and Cialis are PDE5 inhibitors used for erectile dysfunction, but they suit different timing preferences.
| Feature | Viagra / Sildenafil | Cialis / Tadalafil |
|---|---|---|
| Typical starting dose | 50mg as needed | 10mg as needed |
| Timing | Usually about 1 hour before sex | Can be taken from about 30 minutes before sex |
| Half-life | About 4 hours | About 17.5 hours |
| Food | High-fat meals can delay absorption | Food does not meaningfully affect absorption |
| Best fit | Shorter, more planned ED window | Longer window and greater timing flexibility |
Why choose Viagra? Sildenafil is a good fit when you want a familiar 50mg ED tablet with a shorter action window and do not want tadalafil remaining active for up to roughly 36 hours. Customers who specifically prefer the longer tadalafil window can compare Cialis 20mg.[1][3]
Alcohol
Can You Drink Alcohol With Viagra?
In a controlled interaction study, sildenafil 50mg did not meaningfully increase the blood-pressure-lowering effect of alcohol at the amount tested in healthy volunteers.[2]
That does not make heavy drinking useful for sexual performance. Larger amounts of alcohol can itself make it harder to achieve or maintain an erection and can increase dizziness or dehydration.
Independent product testing
Viagra / Sildenafil Lab Report
The current Sildenafil Citrate (Viagra) sample linked on the live product page was independently tested by OnSet Labs using HPLC.
OnSet Biological Testing Laboratory
25-192847
6 February 2025
NKS0922
Sildenafil Citrate (HPLC)
52.13mg/tablet
Specification: NLT 50mg/tablet
Important interaction
Do Not Combine Viagra With Nitrates
Sildenafil must not be combined with nitrate or nitrite drugs. This includes medicines such as nitroglycerin, isosorbide mononitrate and isosorbide dinitrate, as well as recreational nitrate/nitrite products commonly called “poppers.” The combination can cause an unsafe drop in blood pressure.[1]
Viagra prescribing information also contraindicates sildenafil with the guanylate-cyclase stimulator riociguat and recommends caution with alpha-blockers and some medicines that substantially increase sildenafil exposure.[1]
Thailand delivery
Buy Viagra 50mg in Thailand
Thai Anabolics supplies Sildenafil Citrate / Viagra 50mg tablets from stock within Thailand with free Thailand shipping. Each bottle contains 30 tablets. Current price and stock are always shown in the purchase section at the top of this page.
Sources
Viagra / Sildenafil Sources
- DailyMed. Viagra (sildenafil citrate) prescribing information. Current U.S. labeling covering the 50mg standard dose, 25–100mg dose range, 30-minute-to-4-hour timing window, maximum once-daily dosing and nitrate/riociguat contraindications. View DailyMed
- DailyMed / U.S. National Library of Medicine. Viagra clinical pharmacology and drug-interaction data. Sildenafil has an approximately four-hour terminal half-life; a high-fat meal delays peak concentration by about 60 minutes; the label also reports the controlled sildenafil/alcohol interaction study. View full prescribing information
- U.S. Food and Drug Administration. Cialis (tadalafil) prescribing information. Used for the tadalafil timing and half-life comparison. View FDA prescribing information
Written by
Adrian
Adrian writes practical, experience-led content covering performance products and the fitness industry in Thailand. On this page, the focus is Viagra dosage, timing, food, duration, Viagra vs Cialis, key interactions and independent batch testing.
68 reviews for Viagra (30 Tablets)