A dad fears someone could die after his daughter was rushed to hospital with 'breathing difficulties' after reports her drink was spiked at a nightclub on Deansgate Locks.
The Salford University medical student told friends she felt unwell minutes after finishing her only drink of the night at Revolution Bar on Whitworth Street West.
After going outside for some fresh air, the 20-year-old is understood to have collapsed, before an ambulance was called to the venue.
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Another woman who had been at the club is also thought to have needed medical assistance after displaying similar symptoms.
North West Ambulance Service have confirmed they took two patients to hospital after receiving a 999 call from Revolution at around 12.20am on Thursday morning (November 4).
Greater Manchester Police say they are investigating after officers were called at 1.02am to Whitworth Street, to a report that two girls had fallen unwell.
Enquiries are ongoing, they added.
The second-year student's dad, who asked not to be named, said he received a call from his daughter this morning to say she'd been taken to hospital.
He told the M.E.N that his daughter had become seriously unwell in the ambulance, even requiring assistance with her breathing.

The family are now waiting for the results of a urine test conducted at the hospital to find out if any drugs had made their way into the woman's system.
"We knew she was going out last night and she had been very wary about all the spiking incidents in the news," he said.
"She went out with a university society and had a group of friends with her. She is very aware of the dangers of spiking and so are her friends.
"My daughter doesn't really go to nightclubs but she is very careful when she does. Being in a large group she thought she'd be safe.
"She only started with one drink. Immediately after drinking it she said she didn’t feel well. She went outside for some fresh air where she collapsed."
Friends of the student are said to have surrounded her before calling 999 straight away as they felt "something wasn't right."
"Whilst in the ambulance my daughter was sick and her breathing became so bad they had to administer something to help her," the dad said.
"She can’t remember anything after that from the ambulance journey.
"Paramedics called the police because they suspected she had been spiked or injected. The police attended the hospital and spoke to her when she came round."
Medical staff at the hospital are understood to have taken a urine sample and checked the woman for injection marks. Her father said she later found a puncture wound on her hip.
Results of the urine test are due today.
How can you tell if your drink has been spiked?
The student is now said to be resting at home, having discharged herself from hospital in the early hours of this morning.
Her dad says he wants to raise awareness of the incident, and is urging clubbers to call an ambulance straight away if they or their friends display symptoms of being spiked.
"It is so infuriating that these cowards do this kind of thing," he said.
"There is nothing else I can do but give publicity in the hope that it might stop this happening to someone else.
"The fact that the ambulance was called so quickly might have saved her life.
"It is only a matter of time before the parents of a girl is informed that their daughter wasn’t as fortunate and didn’t make it."
A spokesperson for GMP said: "Police were called around 1.02am today (4 November) to Whitworth Street, Manchester to a report that two girls had fallen unwell.
"They were taken to hospital by NWAS. Enquiries are ongoing."
A spokesperson for North West Ambulance Service said: "An ambulance responded to a medical incident at the Revolution Nightclub, Deansgate, following a 999 call at 00.20 this morning.
"We have taken two patients to hospital."
A spokesperson for Revolution said: "The safety and wellbeing of our guests is our number one priority, and our thoughts are with anyone affected by spiking incidents.
"We ensure our teams are vigilant, our guests know who to speak to if they feel unsafe or unwell, and we all work together to call out those who behave inappropriately or suspiciously.
"Our door staff have increased routine searches of guests in recent weeks, and they are trained to identify and support vulnerable guests.
"We are committed to creating a positive, enjoyable environment and our management teams work continuously with other venues, local authorities and police on initiatives to ensure a safe nightlife."
Anyone with information should contact police on 101 or via our LiveChat at www.gmp.police.uk quoting log 133 of 04/11/21.
Alternatively details can be passed via Crimestoppers on 0800 555 111.