The medical practitioners' association, an organisation of chemists, on Wednesday blocked the Fatehgarh Sahib-Chandigarh highway to protest against alleged harassment by the state health department.
The protesters said health department officials have been conducting excessive raids on their shops and accusing them of selling drugs.
"It troubles us," said the association chief, Ramesh Bali, adding, "We are just earning our bread and butter."
Bali said the allegations of selling drugs were even more hurtful as they "help people" when the government has failed to provide better health services in villages.
"Doctors also are not interested in treating rural people. We help them," he said.
Chemists are not authorised to prescribe medicine, but in rural areas of Patiala, like in villages elsewhere, it is common for people to visit them for minor ailments.
Bali said the association also met the chief minister Parkash Singh Badal over the issue, but said the alleged harassment hasn't stopped yet.
Meanwhile, the Punjab government drivers and technical employees' union protested at the administrative complex, demanding dismissal of the notification to hire private vehicles for government employees. Union secretary, Raghuvir Singh, said: "We are doing our job with dedication, but if this notification comes into effect then we will soon be unemployed."
"If the government does not take our demand seriously, we will protest on a state level and even hold a strike," he added. will do a strike.