[Patrick]

so as i never used Pvars before. so i recreated your code and make it into a normal variable

pawn Код:

new PillsTaken[MAX_PLAYERS];

CMD:ad(playerid, params[])
{
        new Float:health;
        GetPlayerHealth(playerid,health);
        if(isDead[playerid] == 1) return SendClientMessage(playerid, COLOR_RED, "You Cannot Use This Command When Dead.");
        if(iCanUse[playerid]-gettime() > 0) return SendClientMessage(playerid, COLOR_RED, "Please Wait Before Taking Another Adrenaline Pill.");
        if(health == 100) return SendClientMessage(playerid, COLOR_RED, "Your Health Is Already Full, You Cannot Take /ad.");
        //
        if(PillsTaken == 1)return SendClientMessage(playerid, COLOR_RED, "You Can Only Use /ad Once In A Life Time.");
        //
        SetPlayerSpecialAction(playerid, SPECIAL_ACTION_SMOKE_CIGGY);
        ApplyAnimation(playerid,"SMOKING","M_smk_in",4.2,0,0,0,0,0,1);
        busyAnim[playerid] = true;
        SendClientMessage(playerid, COLOR_LIGHTBLUE, "You Have Taken An Adrenaline Pill, Your Health Has Been Refilled.");
        SetPlayerChatBubble(playerid, "Has Taken Adrenaline Pill", COLOR_YELLOW, 60, 3000);
        SetPlayerHealth(playerid, 100);
        {
            iCanUse[playerid] = gettime() + 5; // 5 seconds
        }
        PillsTaken =1;//sets the variable pills taken to 1
        return 1;
}

public OnPlayerDeath(playerid, killerid, reason)
{
    PillsTaken =0;//sets the variable pills taken to 1
    return 1;
}