A pharmacist has cautioned travellers against taking sleeping tablets before a flight, warning that the common habit can lead to more harm than good. Seema Khatri, from Roseway Labs, said drug-induced sleep is not the same as natural, restorative sleep and can leave passengers groggier and more jet-lagged.
Health risks of sedatives at altitude
One of the principal concerns is circulation. Khatri highlighted that when sedated, passengers move far less, and that immobility can increase the risk of deep vein thrombosis. She added that cabins are already dehydrating environments, and sedatives can thicken the blood further, making the combination a poor mix.
Cabin pressure can dramatically amplify the impact of sleeping tablets. At increased altitudes, oxygen levels decline, and sedatives may worsen drowsiness, disorientation or even respiratory issues as a result. "So what might feel like a mild dose on the ground can hit much harder once you're in the air," she said.
Jet lag and vulnerable travellers
Despite many passengers using sleeping pills to counter jet lag, it frequently proves counterproductive. Khatri explained that taking them at the wrong time can confuse the body clock even more, leaving travellers disoriented and wired upon landing.
Older travellers, people with breathing conditions like asthma or sleep apnoea, and anyone with circulation problems should avoid sedatives on planes. Even a small dose can hit them harder at altitude and, in some cases, become dangerous rather than just uncomfortable.
Alternative ways to rest during a flight
Instead of relying on supplements, travellers could try herbal teas such as chamomile or lemon balm to relax. Khatri also advised staying well hydrated, as dehydration can make it harder to rest and worsens jet lag. Other tips include wearing an eye mask, using noise-cancelling headphones and avoiding caffeine before departure.
"These options won't put you into an unnatural sleep cycle, so you arrive fresher and safer," she said. Speaking about sleeping tablets being the most convenient solution, she added: "A sleeping pill before take-off may knock you out, but it won't give your body the restorative rest it really needs."
Travellers experiencing sleep difficulties are advised to consult a medical professional for guidance, as a GP can assist with any sleep problems.
