21. Chiropractors, must rule out contraindications to any treatments, including adverse events. 22. Photo-sensitizing medications, or damage to the skin are contraindications to treatment. 23. Contraindications , conditions that warrant withholding treatment with pravastatin, include pregnancy and breastfeeding.24. A documented contraindication of artificial tears is hypersensitivity. 25. Contraindications for treatment with olmesartan include biliary obstruction.26. Contraindications include hypertension, cardiovascular pathologies and epilepsy.27. Allergy to human immune globulin is a contraindication . 28. Harmful spasticity that does not respond to medication or surgical treatment is a contraindication . 29. This is not a full list of contraindications . 30. Impairment of liver or kidney function increase the risk of hypoglycemia, and are contraindications .