A pair of 'drugged-up' cashier clerks appear to be falling asleep at the register as they check out a customer.

In a video entitled 'America's Opioid Epidemic', uploaded to YouTube on Saturday, a man is checking out items at what seems to be a gas station in Sonoma County, California.

Midway through checking out the items, the cashiers appear to have fallen asleep - one with her head down and the other with her head back and her mouth hanging open.

A pair of 'drugged-out' cashier clerks appear to be falling asleep as the register as they check out a man at what seems to be a gas station in Sonoma County, California. Midway through checking out the items, the cashiers are in a sleep-like state - one with her head down and the other with her head back and her mouth hanging open (left and right)

'Hello!' a woman in the store calls out to the cashiers, who briefly come out of their stupor (left). The cashier wearing glasses and a gray sweater then appears to have a great deal of trouble with the scanner (right)

'Hello!' a woman in the store calls out to the cashiers, who briefly come out of their stupor.

The cashier wearing glasses and a gray sweater then appears to have a great deal of trouble with the scanner.

The other cashier, wearing a black shirt, starts bagging the items and manages to bag just one bottle of soda before her head falls forward again.

Her colleague appears to notice that she's having problems and calls on her to bag the rest of the purchases.

'I'm trying,' says the cashier in the black shirt.

'You're trying?' her co-worker asks.

'Yes ma'am,' she replies.

The other cashier, wearing a black shirt, starts bagging the items and manages to bag just one bottle of soda before her head falls forward again (left and right). It is unclear from the video what drug the workers were on or how long ago they had been taken

It is unclear from the video if indeed the workers were on drugs or how long ago they had been taken it if so.

The US has been gripped by an opioid epidemic that has been steadily rising over the last several years.

Every day, more than 90 Americans die after overdosing on opioids. Drug overdose is the leading cause of accidental death in the US, with 52,404 lethal drug overdoses in 2015.

Opioid addiction is driving this epidemic, with 20,101 overdose deaths related to prescription pain relievers, and 12,990 overdose deaths related to heroin in 2015, according to the American Society of Addiction Medicine