How easy is it to get diabetes test strips and insulin pens in Thailand?

Travelers with diabetes can find it relatively easy to purchase insulin pens and test strips in Thailand. Many commenters mention that strips are readily available without a prescription at local pharmacies. Specific recommendations include visiting Chula Bhesaj pharmacy in Silom for over-the-counter options. However, some users advise that while strips are common, insulin pens may not always be the same brand as what is used overseas. It is suggested that bringing sufficient supplies is ideal for short visits, while longer stays may require consulting local hospitals for ongoing needs.