I don't have any specific information about a pill with the imprint "Wellcome H7A" since pharmaceuticals can change over time, and new medications may have been introduced since then. Additionally, some pills can be specific to certain regions and may not be well-documented online.
To identify the pill and determine its use, it is essential to exercise caution and not take any medication that has not been prescribed to you. Taking unidentified pills can be dangerous and may have adverse effects on your health.
If your friend is not sure about the pill's identity or purpose, they should consult a healthcare professional, pharmacist, or a poison control center for assistance. If you have any concerns about your friend's health or safety, it is best to encourage them to seek professional advice.
Remember, it's always better to err on the side of caution when dealing with medications, especially ones that are not familiar or prescribed by a healthcare professional.