The NHS website

Melatonin: a hormone used for sleep problems

NHS medicines information on melatonin – what it's used for, side effects, dosage and who can take it.

NHS medicines information on mebeverine – what it's used for, side effects, dosage and who can take it.

NHS medicines information on mebendazole – what it's used for, side effects, dosage and who can take it.

NHS medicines information on macrogol – what it's used for, side effects, dosage and who can take it.

NHS medicines information on losartan – what it's used for, side effects, dosage and who can take it.

NHS medicines information on lorazepam – what it's used for, side effects, dosage and who can take it.

NHS medicines information on loperamide – what it's used for, side effects, dosage and who can take it.

NHS medicines information on lithium – what it's used for, side effects, dosage and who can take it.

NHS medicines information on lidocaine skin cream – what it's used for, side effects, dosage and who can use it.

NHS medicines information on lidocaine for mouth and throat – what it's used for, side effects, dosage and who can use it.