A: 
The script is in Sanskrit, not Tibetan language. This is the Medicine Buddha Mantra that all Tibetan doctors recite each morning before they start their work.

Directly translated it means:
1 Om: Jewel holder, wish fulfilling one, auspicious one.
2 Namo: prostration
3 Bhagavate: The victorious conqueror
4 Bekhaze (Vaishjaye): medicine Buddha
5 Guru: spiritual master
6 Beduryaprabharazaya: king of Aquamarine one
7 Tathagataya: The one thus gone (the one medicine) gone to the state of the Buddha like other buddhas
8 Arhate: foe destroyed (one who destroyed the enemy of cycle of birth, aging, sickness and death)
9 Samyaksambuddhaya: perfectly accomplished enlightenment of Buddha
10 Tayatha: like this
11 Om: jewel holder, wish fulfilling one, auspicious one
12 Bekhazebekhaze: two times calling the name of medicine Buddha
13 Mahabekhaze: great or supreme physician
14 Bekhazayerazaya: King of physicians
15 Samungate: Perfectly liberated or awakened
16 Svaha: being auspicious!

Invocation of the Medicine Buddha mantra means in short:

May all beings be auspicious!  I make my prostration to you who destroyed the enemy of negative life cycle changes, who has thus gone to the state of enlightenment like other Buddhas, who perfectly accomplished the quality of the Buddha, the supreme physician who is fully liberated and awakened, the enlightened one, Medicine Buddha. Bedurya, King of the physicians.

Patients may also recite the mantra before taking the medicine or "ciudlen" pills (an abstract essence for rejuvenation) transformed into a nectar for healing all body-mind and speech disequilibrium and fulfilling the desire for wellness.  This is how it sounds:

om namo bhagawate beshajye guru
vaidurya prabha rajaya tathagataya
arhte sammyaksambuddhaya tadyatha
om bheshajye beshajye maha beshajye
beshajye rajaya samungate svaha

Dr. Namseling