Legally, you buy Viagra (sildenafil) over the counter in Thailand . It is classified as a "specially controlled drug" by the Thai Food and Drug Administration (FDA), meaning it requires a valid prescription from a licensed doctor.
While laws are strict on paper, the practical experience of buying it can vary significantly depending on where you go. Legal Requirements vs. Reality can you buy viagra over the counter in thailand
In official pharmacies (especially large chains like Boots or Watsons ), you will almost certainly be asked for a prescription. Legally, you buy Viagra (sildenafil) over the counter
Many smaller, independent pharmacies in tourist areas (like Sukhumvit in Bangkok ) may sell sildenafil without asking for a prescription, though this remains technically illegal. though this remains technically illegal.