Permanently post-transplant. i.e forever. (for 99.9% of cases. There's always a few exceptions, e.g for identical twins).
Heart transplant recipients are given immunosuppressive drugs to prevent the body from rejecting the new heart.
Recipients are given immuno-suppressant drugs to prevent transplant rejection and attenuate the immune response
organ transplantation
It is not an organ which contains the immunosuppressive drugs used to prevent rejection - the drugs are manufactured in a laboratory, in the same manner that something as simple as Paracetamol would be manufactured. These drugs can then be given to the transplant recipient orally (including via a nasal-gastric tube) or via an IV drip.
The most common and dangerous complications of heart transplant surgery are organ rejection and infection. Immunosuppressive drugs are given to prevent rejection of the heart.
Because the chance of rejection is highest during the first few months after the transplantation, recipients are usually given a combination of three or four immunosuppressive drugs in high doses during this time
If you're asking what medications supress the immune system, steriods supress the immune system, as do medications given to organ transplant recipients.
Prednisone, azathioprine, and tacrolimus are often combined with cyclosporine for better results.
Like any major surgery, there is pain after a heart transplant. As with any post-op patient, pain relieving drugs are given during the first few days post-op.
After his heart transplant, he was given special medicine to prevent rejection, these drugs are to be taken daily to attenuate the immune response and to keep the body from rejecting its new heart.
Given that kidney transplant recipients are on life-long immunosuppression after transplant and that one of the long term side effects of long-term immunosuppression is lymphoma and cancers, especially skin cancers, it would seem inadvisable to expose oneself excessively to sunlight in order to accomplish a mere 'sun tan'. Better to consider one of the spray tan parlors or alternative cremes and nostrums that 'color' the skin to mimic sun exposure.
As of 2022, there are 70 living recipients of the Medal of Honor. The total number of recipients since it was first awarded in 1863 is 3,538. It is not possible to provide the names of all 3,538 recipients within the given text constraint.