The safety of Kwells during pregnancy has not been established. It should only be used during pregnancy, particularly in the first trimester, if the expected benefit to the mother outweighs any potential risk to the developing fetus. Caution is also required during lactation, as small amounts of the medication may pass into breast milk.

The effects of hyoscine, the active ingredient in Kwells, may be enhanced by other drugs with anticholinergic properties, such as certain antihistamines and tricyclic antidepressants. Combining these medications with Kwells should be avoided. Additionally, the sedative effect of Kwells may be increased when taken with alcohol or central nervous system depressants.

Kwells is taken as needed to prevent or treat motion sickness. If you miss a dose and still experience symptoms, take the medication as soon as you remember, ensuring you do not exceed the recommended dosage. Do not double up on doses to make up for a missed one.

Since Kwells may cause drowsiness or blurred vision, it's advisable to avoid activities that require full alertness, such as driving or operating heavy machinery, until you know how the medication affects you.