Tyler Peck died at a house in the town on February 2nd.
34-year old Holly Strawbridge, who is also from Salcombe, has been charged with two counts of supplying a class A drug, and two counts of child cruelty.
She will appear before magistrates in Plymouth.
A 29-year-old man from the town was also arrested.
He was released on police bail until Tuesday 2 July.
Christmas snow possible on Dartmoor
That's despite no white-Christmas predicted
Young teenager stabbed in Plymouth
No arrests made
Stalking suspect sought
Call 999 if you see Conor Braund, 30,
Plymouth will not delay local elections
Exeter pressed for a decision
'Quarry dust' sparks worries in Kingsteignton
Residents fear health risk
2025 set to smash UK heat records
Exeter boffins await result
