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Yes, for research into different administration routes, alternatives exist

Lian, Z

The persistent viral infections in the development and severity of myalgic encephalomyelitis/chronic fatigue syndrome

L-Glutathione Power Powder is by Designs for Health L-Glutathione Power powder by Designs for Health is a supplement that is formulated with 1 gram of L-Glutathione, a naturally occurring antioxidant that helps protect the body from harmful toxins, heavy metals, and environmental pollutants

Patients with a product of 100kg Calculation of acetylcysteine dose should be capped at 100 kg of body weight

It also modulates immune responses, promoting wound healing and regulating inflammation