@Joe *********
On the contrary, the OP seemed to appreciate the comment. Ultimately, the cost of the medicine will depend on the formulary, and Sinemet comes in 3 different doses, depending how far along the patient is with Parkinson's. @ 6 per day, the OP's mother is actually near the maximum dosage. One of the benefits of the medicine is to slow cognitive decline; it won't stop it. There are serious side effects, which means increasing the dosage needs to be physician managed. One of the challenges is assessing the cognitive decline by a doctor with no or limited command of English, let alone being able to recognise cultural cues. I've first hand experience of a close relative who had Parkinson's, and who eventually developed Lowey Body Dementia, resulting in extremely challenging behaviour. I hope the OP has made full preparations when contemplating emigrating to Thailand, which goes beyond knowing the price of medicines there (for a start, there is restriction on supply, you need a prescribing specialist, and not all parts of Thailand have access to the same medications). The pricing will vary depending if you want an imported brand, the same brand used in the US, or if you switch to a Thai version. You also have to consider that there are two prices in Thailand; Public and Private, with foreigners accessing only the Private hospitals. A drug like this will need to be procured through the Private sector. In both cases, hospitals will add a considerable markup to the retail price. And some drugs in Thailand are not available, or have very limited availability through the private sector. For instance, Zidovudine, better known as AZT, is not available through Thai private hospitals, but is available through 70% of public hospitals. Looking at other PD drugs, such as Madopar (original levodopa), because of a pricing dispute between Thailand and the manufacturer, its only available through tertiary and University hospitals. Generic forms, which are considered less effective, are prescribed through community hospitals. Community hospitals are not allowed to prescribe the branded drug. Its very important to secure the supply of Sinemet before traveking; at high doses, the body does become addicted to it, and coming off it causes serious withdrawal functions. As you no doubt know, Thailand only permits foreigners to enter with 30 days of medication.